laserninja commented on code in PR #12900:
URL: https://github.com/apache/gravitino/pull/12900#discussion_r4290055451


##########
web-v2/web/src/lib/store/metalakes/index.js:
##########
@@ -3086,6 +3298,40 @@ export const appMetalakesSlice = createSlice({
         toast.error(action.error.message)
       }
     })
+    builder.addCase(fetchSemanticModels.pending, (state, action) => {
+      const key = semanticModelSchemaKey(action.meta.arg)
+      state.semanticModelRequests[key] = { requestId: action.meta.requestId }
+      state.semanticModelListRequestId = action.meta.requestId
+    })
+    builder.addCase(fetchSemanticModels.fulfilled, (state, action) => {
+      if (action.payload.stale) return
+      const request = state.semanticModelRequests[action.payload.schemaKey]
+      if (request && request.requestId !== action.meta.requestId) return
+      if (request) request.semanticModels = action.payload.semanticModels
+      if (!state.semanticModelListRequestId || 
state.semanticModelListRequestId === action.meta.requestId) {
+        state.semanticModels = action.payload.semanticModels
+      }
+    })
+    builder.addCase(fetchSemanticModels.rejected, (state, action) => {
+      if (action.error.name !== 'CanceledError' && 
!action.error.message.includes('CanceledError')) {
+        toast.error(action.error.message)
+      }
+    })
+    builder.addCase(getSemanticModelDetails.fulfilled, (state, action) => {
+      if (action.payload.init) {
+        state.activatedDetails = action.payload.semanticModel
+      }

Review Comment:
   Fixed the reverse navigation path in f82d2dd99. All entity detail loaders 
now share a full-identity/request guard, and navigation cancels every 
route-owned request and its follow-ups. Table/fileset/topic loading and detail 
side effects now run only in the guarded reducers. Added controlled-response 
tests for all detail kinds and canceled list/tag/policy responses; 
production-browser checks pass for table-to-model and schema-to-model 
navigation.



##########
web-v2/web/src/app/catalogs/rightContent/entitiesContent/SemanticModelDetailsPage.js:
##########
@@ -0,0 +1,576 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+'use client'
+
+import { useMemo, useState } from 'react'
+import { Button, Divider, Flex, Popover, Space, Spin, Table, Tabs, Tag, 
Tooltip, Typography, message } from 'antd'
+import { useAntdColumnResize } from 'react-antd-column-resize'
+import useResizeObserver from 'use-resize-observer'
+import { useRouter, useSearchParams } from 'next/navigation'
+import Tags from '@/components/CustomTags'
+import GetOwner from '@/components/GetOwner'
+import Icons from '@/components/Icons'
+import PropertiesContent from '@/components/PropertiesContent'
+import { useAppDispatch, useAppSelector } from '@/lib/hooks/useStore'
+import { getSemanticModelDetails } from '@/lib/store/metalakes'
+import { copyToClipboard } from '@/lib/utils'
+import { formatToDateTime, isValidDate } from '@/lib/utils/date'
+import { formatSemanticModelDefinition } from '@/lib/utils/semanticModel'
+import SemanticModelAIContext from './SemanticModelAIContext'
+import SemanticModelExport from './SemanticModelExport'
+import SemanticModelExtensions from './SemanticModelExtensions'
+import CreateSemanticModelDialog from '../CreateSemanticModelDialog'
+
+const { Title, Paragraph } = Typography
+
+const sourceFullName = source => {
+  if (!source) {
+    return '-'
+  }
+
+  return [...(source.namespace || []), source.name].filter(Boolean).join('.')
+}
+
+const renderExpression = expression => {
+  const dialects = expression?.dialects || []
+
+  if (!dialects.length) {
+    return <span>-</span>
+  }
+
+  return (
+    <Space direction='vertical' size={2}>
+      {dialects.map((dialect, index) => (
+        <span key={`${dialect?.dialect}-${index}`}>
+          <Tag>{dialect?.dialect}</Tag>
+          <span className='font-mono text-xs'>{dialect?.expression}</span>
+        </span>
+      ))}
+    </Space>
+  )
+}
+
+const renderColumns = columns => <span className='font-mono text-xs'>{(columns 
|| []).join(', ') || '-'}</span>
+
+const hasMetadata = entity => !!entity.aiContext || 
entity.customExtensions?.length > 0
+
+const renderMetadata = (entity, label) => (
+  <>
+    <SemanticModelAIContext context={entity?.aiContext} label={`${label} AI 
Context`} />
+    <SemanticModelExtensions extensions={entity?.customExtensions} 
label={`${label} Vendor Extensions`} />
+  </>
+)
+
+export default function SemanticModelDetailsPage() {
+  const searchParams = useSearchParams()
+  const router = useRouter()
+  const dispatch = useAppDispatch()
+  const metalake = searchParams.get('metalake')
+  const catalog = searchParams.get('catalog')
+  const schema = searchParams.get('schema')
+  const semanticModelName = searchParams.get('semanticModel')
+  const auth = useAppSelector(state => state.auth)
+  const { anthEnable } = auth
+  const store = useAppSelector(state => state.metalakes)
+  const semanticModel = store.activatedDetails
+  const [tabKey, setTabKey] = useState('Datasets')
+  const [openEdit, setOpenEdit] = useState(false)
+  const { ref, width } = useResizeObserver()
+
+  const definition = semanticModel?.definition
+  const properties = semanticModel?.properties
+  const createdAt = semanticModel?.audit?.createTime
+  const createdAtText = !createdAt || !isValidDate(createdAt) ? '-' : 
formatToDateTime(createdAt)
+  const lastModifiedAt = semanticModel?.audit?.lastModifiedTime
+  const lastModifiedText = !lastModifiedAt || !isValidDate(lastModifiedAt) ? 
'-' : formatToDateTime(lastModifiedAt)
+  const metadataObjectFullName = `${catalog}.${schema}.${semanticModelName}`
+
+  const datasets = useMemo(
+    () => (definition?.datasets || []).map(dataset => ({ ...dataset, key: 
dataset.name })),
+    [definition]
+  )
+
+  const relationships = useMemo(
+    () => (definition?.relationships || []).map(relationship => ({ 
...relationship, key: relationship.name })),
+    [definition]
+  )
+
+  const metrics = useMemo(
+    () => (definition?.metrics || []).map(metric => ({ ...metric, key: 
metric.name })),
+    [definition]
+  )
+
+  const definitionText = useMemo(() => 
formatSemanticModelDefinition(definition), [definition])
+
+  const tagContent = (
+    <div>
+      <Tags readOnly={true} metadataObjectType={'semantic_model'} 
metadataObjectFullName={metadataObjectFullName} />
+    </div>
+  )
+
+  const propertyContent = <PropertiesContent properties={properties} />
+
+  const onSaved = async updated => {
+    if (updated.name !== semanticModelName) {
+      const params = new URLSearchParams(searchParams.toString())
+      params.set('semanticModel', updated.name)
+      router.replace(`/catalogs?${params.toString()}`)
+    } else {
+      await dispatch(getSemanticModelDetails({ metalake, catalog, schema, 
semanticModel: updated.name, init: true }))
+    }
+  }
+
+  const onCopyDefinition = async () => {
+    try {
+      await copyToClipboard(definitionText)
+      message.success('Definition copied!')
+    } catch (err) {
+      console.error('Failed to copy definition: ', err)
+      message.error('Failed to copy definition')
+    }
+  }
+
+  const datasetColumns = useMemo(
+    () => [
+      {
+        title: 'Dataset Name',
+        dataIndex: 'name',
+        key: 'name',
+        width: 200,
+        ellipsis: true,
+        sorter: (a, b) => 
a.name.toLowerCase().localeCompare(b.name.toLowerCase())
+      },
+      {
+        title: 'Source',
+        dataIndex: 'source',
+        key: 'source',
+        width: 260,
+        ellipsis: true,
+        render: source => <span className='font-mono 
text-xs'>{sourceFullName(source)}</span>
+      },
+      {
+        title: 'Primary Key',
+        dataIndex: 'primaryKey',
+        key: 'primaryKey',
+        width: 180,
+        ellipsis: true,
+        render: renderColumns
+      },
+      {
+        title: 'Unique Keys',
+        dataIndex: 'uniqueKeys',
+        key: 'uniqueKeys',
+        width: 220,
+        render: keys =>
+          keys?.length ? (
+            <Space direction='vertical' size={4}>
+              {keys.map((columns, index) => (
+                <Tag key={index}>{renderColumns(columns)}</Tag>
+              ))}
+            </Space>
+          ) : (
+            <span>-</span>
+          )
+      },
+      {
+        title: 'Fields',
+        dataIndex: 'fields',
+        key: 'fields',
+        width: 80,
+        render: fields => <span>{(fields || []).length}</span>
+      },
+      {
+        title: 'Description',
+        dataIndex: 'description',
+        key: 'description',
+        ellipsis: true,
+        render: description => <span>{description || '-'}</span>
+      }
+    ],
+    []
+  )
+
+  const fieldColumns = useMemo(
+    () => [
+      {
+        title: 'Field Name',
+        dataIndex: 'name',
+        key: 'name',
+        width: 220,
+        render: (name, field) => (
+          <div className='break-words'>
+            <div>{name}</div>
+            {field.label && <Typography.Text 
type='secondary'>{field.label}</Typography.Text>}
+          </div>
+        )
+      },
+      {
+        title: 'Data Type',
+        dataIndex: 'datatype',
+        key: 'datatype',
+        width: 140,
+        render: datatype => (datatype ? <Tag>{datatype}</Tag> : <span>-</span>)
+      },
+      {
+        title: 'Time Dimension',
+        dataIndex: 'dimension',
+        key: 'dimension',
+        width: 140,
+        render: dimension => <span>{dimension?.isTime ? 'Yes' : 'No'}</span>
+      },
+      {
+        title: 'Expression',
+        dataIndex: 'expression',
+        key: 'expression',
+        render: renderExpression
+      },
+      {
+        title: 'Description',
+        dataIndex: 'description',
+        key: 'description',
+        ellipsis: true,
+        render: description => <span>{description || '-'}</span>
+      }
+    ],
+    []
+  )
+
+  const relationshipColumns = useMemo(
+    () => [
+      {
+        title: 'Relationship Name',
+        dataIndex: 'name',
+        key: 'name',
+        width: 220,
+        ellipsis: true,
+        sorter: (a, b) => 
a.name.toLowerCase().localeCompare(b.name.toLowerCase())
+      },
+      { title: 'From', dataIndex: 'from', key: 'from', width: 160, ellipsis: 
true },
+      {
+        title: 'From Columns',
+        dataIndex: 'fromColumns',
+        key: 'fromColumns',
+        width: 200,
+        ellipsis: true,
+        render: renderColumns
+      },
+      { title: 'To', dataIndex: 'to', key: 'to', width: 160, ellipsis: true },
+      {
+        title: 'To Columns',
+        dataIndex: 'toColumns',
+        key: 'toColumns',
+        ellipsis: true,
+        render: renderColumns
+      }
+    ],
+    []
+  )
+
+  const metricColumns = useMemo(
+    () => [
+      {
+        title: 'Metric Name',
+        dataIndex: 'name',
+        key: 'name',
+        width: 200,
+        ellipsis: true,
+        sorter: (a, b) => 
a.name.toLowerCase().localeCompare(b.name.toLowerCase())
+      },
+      {
+        title: 'Data Type',
+        dataIndex: 'datatype',
+        key: 'datatype',
+        width: 140,
+        render: datatype => (datatype ? <Tag>{datatype}</Tag> : <span>-</span>)
+      },
+      {
+        title: 'Expression',
+        dataIndex: 'expression',
+        key: 'expression',
+        render: renderExpression
+      },
+      {
+        title: 'Description',
+        dataIndex: 'description',
+        key: 'description',
+        ellipsis: true,
+        render: description => <span>{description || '-'}</span>
+      }
+    ],
+    []
+  )
+
+  const tabOptions = [
+    { label: 'Datasets', key: 'Datasets' },
+    { label: 'Relationships', key: 'Relationships' },
+    { label: 'Metrics', key: 'Metrics' },
+    { label: 'Definition', key: 'Definition' }
+  ]
+
+  const {
+    resizableColumns: datasetResizableColumns,
+    components: datasetComponents,
+    tableWidth: datasetTableWidth
+  } = useAntdColumnResize(() => {
+    return { columns: datasetColumns, minWidth: 100 }
+  }, [datasetColumns])
+
+  const {
+    resizableColumns: relationshipResizableColumns,
+    components: relationshipComponents,
+    tableWidth: relationshipTableWidth
+  } = useAntdColumnResize(() => {
+    return { columns: relationshipColumns, minWidth: 100 }
+  }, [relationshipColumns])
+
+  const {
+    resizableColumns: metricResizableColumns,
+    components: metricComponents,
+    tableWidth: metricTableWidth
+  } = useAntdColumnResize(() => {
+    return { columns: metricColumns, minWidth: 100 }
+  }, [metricColumns])
+
+  const expandedFieldsRow = dataset => (
+    <div>
+      {renderMetadata(dataset, dataset.name)}
+      <Table
+        data-refer='semantic-model-fields-grid'
+        size='small'
+        rowKey={field => field.name}
+        dataSource={dataset.fields || []}
+        columns={fieldColumns}
+        pagination={false}
+        expandable={{
+          expandedRowRender: field => renderMetadata(field, field.name),
+          rowExpandable: hasMetadata
+        }}
+      />
+    </div>
+  )
+
+  return (
+    <>
+      <Spin spinning={store.activatedDetailsLoading}>
+        <Flex className='mb-2' gap='small' align='flex-start' ref={ref}>
+          <div className='size-8'>
+            <Icons.iconify icon='mdi:graph-outline' className='my-icon-large' 
/>
+          </div>
+          <div className='grow-1 relative bottom-1'>
+            <Title level={3} style={{ marginBottom: '0.125rem' }}>
+              <Space>
+                <span
+                  title={semanticModelName}
+                  className='min-w-10 truncate'
+                  style={{ maxWidth: `calc(${width}px - 90px)`, display: 
'inherit' }}
+                >
+                  {semanticModelName || ''}
+                </span>
+                <Tooltip title='Edit'>
+                  <Button
+                    type='text'
+                    size='small'
+                    aria-label='Edit Semantic Model'
+                    icon={<Icons.Pencil className='size-4' />}
+                    disabled={store.activatedDetailsLoading || !definition}
+                    onClick={() => setOpenEdit(true)}
+                  />
+                </Tooltip>
+              </Space>
+            </Title>
+            <Paragraph
+              type='secondary'
+              className='truncate'
+              title={semanticModel?.comment}
+              style={{ marginBottom: 0, maxWidth: `calc(${width}px - 56px)` }}
+            >
+              {semanticModel?.comment}
+            </Paragraph>
+          </div>
+        </Flex>
+        <Space split={<Divider type='vertical' />} wrap={true} 
className='mb-2'>
+          {anthEnable && (
+            <Space size={4}>
+              <Tooltip title='Owned' placement='top'>
+                <Icons.User className='size-4' color='grey' />
+              </Tooltip>
+              <GetOwner
+                metalake={metalake}
+                metadataObjectType={'semantic_model'}
+                metadataObjectFullName={metadataObjectFullName}
+              />
+            </Space>
+          )}
+          {semanticModel?.audit?.creator && (
+            <Space size={4}>
+              <Tooltip title='Creator' placement='top'>
+                <Icons.UserPen className='size-4' color='grey' />
+              </Tooltip>
+              <span>{semanticModel.audit.creator}</span>
+            </Space>
+          )}
+          <Space size={4}>
+            <Tooltip title='Created' placement='top'>
+              <span className='inline-flex'>
+                <Icons.iconify icon='mdi:clock-outline' className='size-4' 
props={{ color: 'grey' }} />
+              </span>
+            </Tooltip>
+            <span>{createdAtText}</span>
+          </Space>
+          <Space size={4}>
+            <Tooltip title='Tags' placement='top'>
+              <Icons.Tags className='size-4' color='grey' />
+            </Tooltip>
+            {store.currentEntityTags && store.currentEntityTags?.length > 0 ? (
+              <Popover placement='bottom' title={<span>Tags</span>} 
content={tagContent}>
+                <a 
className='text-defaultPrimary'>{store.currentEntityTags?.length}</a>
+              </Popover>
+            ) : (
+              <a className='text-defaultPrimary'>0</a>
+            )}
+          </Space>
+          <Space size={4}>
+            <Tooltip title='Properties' placement='top'>
+              <Icons.TableProperties className='size-4' color='grey' />
+            </Tooltip>
+            {properties && Object.keys(properties).length > 0 ? (
+              <Popover placement='bottom' title={<span>Properties</span>} 
content={propertyContent}>
+                <a 
className='text-defaultPrimary'>{Object.keys(properties).length}</a>
+              </Popover>
+            ) : (
+              <a className='text-defaultPrimary'>0</a>
+            )}
+          </Space>
+          {semanticModel?.audit?.lastModifier && (
+            <Space size={4} data-refer='semantic-model-last-modifier'>
+              <Tooltip title='Last modified by'>
+                <Icons.UserPen className='size-4' color='grey' />
+              </Tooltip>
+              <span>{semanticModel.audit.lastModifier}</span>
+            </Space>
+          )}
+          {lastModifiedAt && (
+            <Space size={4} data-refer='semantic-model-last-modified-time'>
+              <Tooltip title='Last modified'>
+                <Icons.History className='size-4' color='grey' />
+              </Tooltip>
+              <span>{lastModifiedText}</span>
+            </Space>
+          )}
+        </Space>
+      </Spin>
+      <SemanticModelExport
+        key={metadataObjectFullName}
+        metalake={metalake}
+        catalog={catalog}
+        schema={schema}
+        semanticModel={semanticModelName}
+        disabled={store.activatedDetailsLoading || !definition}
+      />
+      {renderMetadata(definition, 'Model')}
+      <Tabs data-refer='details-tabs' activeKey={tabKey} onChange={setTabKey} 
items={tabOptions} />
+      <Spin spinning={store.activatedDetailsLoading}>
+        {tabKey === 'Datasets' && (
+          <Table
+            data-refer='semantic-model-datasets-grid'
+            size='small'
+            style={{ maxHeight: 'calc(100vh - 30rem)' }}
+            scroll={{ x: datasetTableWidth, y: 'calc(100vh - 37rem)' }}
+            dataSource={datasets}
+            columns={datasetResizableColumns}
+            components={datasetComponents}
+            expandable={{
+              expandedRowRender: expandedFieldsRow,
+              rowExpandable: dataset => (dataset.fields || []).length > 0 || 
hasMetadata(dataset)
+            }}
+            pagination={{ position: ['bottomCenter'], showSizeChanger: true }}
+          />
+        )}
+        {tabKey === 'Relationships' && (
+          <Table
+            data-refer='semantic-model-relationships-grid'
+            size='small'
+            style={{ maxHeight: 'calc(100vh - 30rem)' }}
+            scroll={{ x: relationshipTableWidth, y: 'calc(100vh - 37rem)' }}
+            dataSource={relationships}
+            columns={relationshipResizableColumns}
+            components={relationshipComponents}
+            expandable={{
+              expandedRowRender: relationship => renderMetadata(relationship, 
relationship.name),
+              rowExpandable: hasMetadata
+            }}
+            pagination={{ position: ['bottomCenter'], showSizeChanger: true }}
+          />
+        )}
+        {tabKey === 'Metrics' && (
+          <Table
+            data-refer='semantic-model-metrics-grid'
+            size='small'
+            style={{ maxHeight: 'calc(100vh - 30rem)' }}
+            scroll={{ x: metricTableWidth, y: 'calc(100vh - 37rem)' }}

Review Comment:
   Fixed in f82d2dd99 with a short-window outer-scroll fallback. The heading 
can scroll away while the table retains a usable body. At 1280x600 the dataset 
and metric bodies now measure 323px; a complete 171px expanded field and a 
complete metric row are visible. Browser checks at both 1280x600 and 1512x861 
also verify reachable horizontal scrollbars, pinned Edit actions, and 
pagination.



##########
web-v2/web/src/lib/api/semanticModels/index.js:
##########
@@ -0,0 +1,94 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import { defHttp } from '@/lib/utils/axios'
+
+const Apis = {
+  GET: ({ metalake, catalog, schema }) =>
+    
`/api/metalakes/${encodeURIComponent(metalake)}/catalogs/${encodeURIComponent(
+      catalog
+    )}/schemas/${encodeURIComponent(schema)}/semantic-models`,
+  GET_DETAIL: ({ metalake, catalog, schema, semanticModel }) =>
+    
`/api/metalakes/${encodeURIComponent(metalake)}/catalogs/${encodeURIComponent(
+      catalog
+    
)}/schemas/${encodeURIComponent(schema)}/semantic-models/${encodeURIComponent(semanticModel)}`
+}
+
+export const getSemanticModelsApi = (params, options) => {
+  return defHttp.get(
+    {
+      url: `${Apis.GET(params)}`
+    },
+
+    // The schema tab and tree load this list independently and must not 
cancel each other.
+    { ...options, ignoreCancelToken: true }

Review Comment:
   Fixed in f82d2dd99. The visible Semantic Model list is now scoped to the 
active route schema, independently of which request starts last. A save 
completing in schema A still refreshes A's tree, but cannot replace B's list or 
clear B's loading state. Added a real-thunk/reducer regression for delayed PUT 
completion and verified the A-save/B-navigation sequence through the production 
UI.



##########
web-v2/web/src/app/catalogs/rightContent/entitiesContent/SemanticModelDetailsPage.js:
##########
@@ -0,0 +1,812 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+'use client'
+
+import { useEffect, useMemo, useRef, useState } from 'react'
+import {
+  Button,
+  Divider,
+  Flex,
+  Input,
+  Modal,
+  Popover,
+  Space,
+  Spin,
+  Table,
+  Tabs,
+  Tag,
+  Tooltip,
+  Typography,
+  message
+} from 'antd'
+import styles from './SemanticModelDetailsPage.module.css'
+import { useAntdColumnResize } from 'react-antd-column-resize'
+import { useRouter, useSearchParams } from 'next/navigation'
+import Tags from '@/components/CustomTags'
+import GetOwner from '@/components/GetOwner'
+import Icons from '@/components/Icons'
+import PropertiesContent from '@/components/PropertiesContent'
+import { useAppDispatch, useAppSelector } from '@/lib/hooks/useStore'
+import { getSemanticModelDetails } from '@/lib/store/metalakes'
+import { copyToClipboard } from '@/lib/utils'
+import { formatToDateTime, isValidDate } from '@/lib/utils/date'
+import { formatSemanticModelDefinition } from '@/lib/utils/semanticModel'
+import { ColumnTypeColorEnum } from '@/config'
+import SemanticModelExpression from './SemanticModelExpression'
+import SemanticModelAIContext from './SemanticModelAIContext'
+import SemanticModelExport from './SemanticModelExport'
+import SemanticModelExtensions from './SemanticModelExtensions'
+import CreateSemanticModelDialog from '../CreateSemanticModelDialog'
+import SemanticMetadataEditor from '../SemanticMetadataEditor'
+
+const { Title, Paragraph } = Typography
+
+const sourceFullName = source => {
+  if (!source) {
+    return '-'
+  }
+
+  return [...(source.namespace || []), source.name].filter(Boolean).join('.')
+}
+
+const renderDataType = datatype => {
+  if (!datatype) return <span>-</span>
+  const type = { DateTime: 'timestamp', DateTimeTz: 'timestamp_tz' }[datatype] 
|| datatype.toLowerCase()
+
+  return <Tag color={ColumnTypeColorEnum[type] || undefined}>{datatype}</Tag>
+}
+
+const topAlignedColumns = columns =>
+  columns.map(column => ({ ...column, onCell: () => ({ style: { verticalAlign: 
'top' } }) }))
+
+const renderColumns = columns => <span className='font-mono text-xs'>{(columns 
|| []).join(', ') || '-'}</span>
+
+const hasMetadata = entity => !!entity.aiContext || 
entity.customExtensions?.length > 0
+
+export default function SemanticModelDetailsPage() {
+  const searchParams = useSearchParams()
+  const router = useRouter()
+  const dispatch = useAppDispatch()
+  const metalake = searchParams.get('metalake')
+  const catalog = searchParams.get('catalog')
+  const schema = searchParams.get('schema')
+  const semanticModelName = searchParams.get('semanticModel')
+  const auth = useAppSelector(state => state.auth)
+  const { anthEnable } = auth
+  const store = useAppSelector(state => state.metalakes)
+  const semanticModel = store.activatedDetails?.name === semanticModelName ? 
store.activatedDetails : null
+  const [tabKey, setTabKey] = useState('Datasets')
+  const [openEdit, setOpenEdit] = useState(false)
+  const [metadataEdit, setMetadataEdit] = useState(null)
+  const [fieldContext, setFieldContext] = useState(null)
+  const [metadataDetails, setMetadataDetails] = useState(null)
+  const [expandedDefinition, setExpandedDefinition] = useState(false)
+  const [fieldSearch, setFieldSearch] = useState('')
+  const [metricSearch, setMetricSearch] = useState('')
+  const [expandedDatasets, setExpandedDatasets] = useState([])
+
+  const mounted = useRef(true)
+  useEffect(() => {
+    mounted.current = true
+
+    return () => {
+      mounted.current = false
+    }
+  }, [])
+
+  const definition = semanticModel?.definition
+  const properties = semanticModel?.properties
+  const createdAt = semanticModel?.audit?.createTime
+  const createdAtText = !createdAt || !isValidDate(createdAt) ? '-' : 
formatToDateTime(createdAt)
+  const lastModifiedAt = semanticModel?.audit?.lastModifiedTime
+  const lastModifiedText = !lastModifiedAt || !isValidDate(lastModifiedAt) ? 
'-' : formatToDateTime(lastModifiedAt)
+  const metadataObjectFullName = `${catalog}.${schema}.${semanticModelName}`
+
+  const datasets = useMemo(
+    () => (definition?.datasets || []).map(dataset => ({ ...dataset, key: 
dataset.name })),
+    [definition]
+  )
+
+  const relationships = useMemo(
+    () => (definition?.relationships || []).map(relationship => ({ 
...relationship, key: relationship.name })),
+    [definition]
+  )
+
+  const metrics = useMemo(
+    () => (definition?.metrics || []).map(metric => ({ ...metric, key: 
metric.name })),
+    [definition]
+  )
+
+  const fieldQuery = fieldSearch.trim().toLowerCase()
+
+  const filteredDatasets = useMemo(
+    () =>
+      fieldQuery
+        ? datasets
+            .map(dataset => ({
+              ...dataset,
+              fields: (dataset.fields || []).filter(field =>
+                [field.name, field.label].some(value => 
value?.toLowerCase().includes(fieldQuery))
+              )
+            }))
+            .filter(dataset => dataset.fields.length)
+        : datasets,
+    [datasets, fieldQuery]
+  )
+
+  const filteredMetrics = useMemo(
+    () => metrics.filter(metric => 
metric.name.toLowerCase().includes(metricSearch.trim().toLowerCase())),
+    [metrics, metricSearch]
+  )
+
+  const renderMetadata = (entity, label, target) => (
+    <>
+      <SemanticModelAIContext
+        context={entity?.aiContext}
+        label={`${label} AI Context`}
+        onEdit={
+          target
+            ? () => {
+                setMetadataDetails(null)
+                setMetadataEdit({ ...target, section: 'context' })
+              }
+            : undefined
+        }
+      />
+      <SemanticModelExtensions extensions={entity?.customExtensions} 
label={`${label} Vendor Extensions`} />
+    </>
+  )
+
+  const definitionText = useMemo(() => 
formatSemanticModelDefinition(definition), [definition])
+
+  const tagContent = (
+    <div>
+      <Tags readOnly={true} metadataObjectType={'semantic_model'} 
metadataObjectFullName={metadataObjectFullName} />
+    </div>
+  )
+
+  const propertyContent = <PropertiesContent properties={properties} />
+
+  const onSaved = async updated => {
+    if (!mounted.current) return
+    if (updated.name !== semanticModelName) {
+      const params = new URLSearchParams(searchParams.toString())
+      params.set('semanticModel', updated.name)
+      router.replace(`/catalogs?${params.toString()}`)
+    } else {
+      await dispatch(getSemanticModelDetails({ metalake, catalog, schema, 
semanticModel: updated.name, init: true }))
+    }
+  }
+
+  const onCopyDefinition = async () => {
+    try {
+      await copyToClipboard(definitionText)
+      message.success('Definition copied!')
+    } catch (err) {
+      console.error('Failed to copy definition: ', err)
+      message.error('Failed to copy definition')
+    }
+  }
+
+  const datasetColumns = useMemo(
+    () => [
+      {
+        title: 'Dataset Name',
+        dataIndex: 'name',
+        key: 'name',
+        fixed: 'left',
+        width: 200,
+        ellipsis: true,
+        sorter: (a, b) => 
a.name.toLowerCase().localeCompare(b.name.toLowerCase())
+      },
+      {
+        title: 'Source',
+        dataIndex: 'source',
+        key: 'source',
+        width: 260,
+        ellipsis: true,
+        render: source => <span className='font-mono 
text-xs'>{sourceFullName(source)}</span>
+      },
+      {
+        title: 'Primary Key',
+        dataIndex: 'primaryKey',
+        key: 'primaryKey',
+        width: 180,
+        ellipsis: true,
+        render: renderColumns
+      },
+      {
+        title: 'Unique Keys',
+        dataIndex: 'uniqueKeys',
+        key: 'uniqueKeys',
+        width: 220,
+        render: keys =>
+          keys?.length ? (
+            <Space direction='vertical' size={4}>
+              {keys.map((columns, index) => (
+                <Tag key={index}>{renderColumns(columns)}</Tag>
+              ))}
+            </Space>
+          ) : (
+            <span>-</span>
+          )
+      },
+      {
+        title: 'Fields',
+        dataIndex: 'fields',
+        key: 'fields',
+        width: 80,
+        render: fields => <span>{(fields || []).length}</span>
+      },
+      {
+        title: 'Description',
+        dataIndex: 'description',
+        key: 'description',
+        ellipsis: true,
+        render: description => <span>{description || '-'}</span>
+      },
+      {
+        title: 'Actions',
+        key: 'actions',
+        fixed: 'right',
+        width: 90,
+        render: (_, record) => (
+          <Button
+            size='small'
+            aria-label={`Edit dataset ${record.name}`}
+            onClick={() => setMetadataEdit({ kind: 'dataset', name: 
record.name })}
+          >
+            Edit
+          </Button>
+        )
+      }
+    ],
+    []
+  )
+
+  const relationshipColumns = useMemo(
+    () => [
+      {
+        title: 'Relationship Name',
+        dataIndex: 'name',
+        key: 'name',
+        fixed: 'left',
+        width: 220,
+        ellipsis: true,
+        sorter: (a, b) => 
a.name.toLowerCase().localeCompare(b.name.toLowerCase())
+      },
+      { title: 'From', dataIndex: 'from', key: 'from', width: 160, ellipsis: 
true },
+      {
+        title: 'From Columns',
+        dataIndex: 'fromColumns',
+        key: 'fromColumns',
+        width: 200,
+        ellipsis: true,
+        render: renderColumns
+      },
+      { title: 'To', dataIndex: 'to', key: 'to', width: 160, ellipsis: true },
+      {
+        title: 'To Columns',
+        dataIndex: 'toColumns',
+        key: 'toColumns',
+        ellipsis: true,
+        render: renderColumns
+      },
+      {
+        title: 'Actions',
+        key: 'actions',
+        fixed: 'right',
+        width: 90,
+        render: (_, record) => (
+          <Button
+            size='small'
+            aria-label={`Edit relationship ${record.name}`}
+            onClick={() => setMetadataEdit({ kind: 'relationship', name: 
record.name })}
+          >
+            Edit
+          </Button>
+        )
+      }
+    ],
+    []
+  )
+
+  const metricColumns = useMemo(
+    () => [
+      {
+        title: 'Metric Name',
+        dataIndex: 'name',
+        key: 'name',
+        fixed: 'left',
+        width: 200,
+        ellipsis: true,
+        sorter: (a, b) => 
a.name.toLowerCase().localeCompare(b.name.toLowerCase())
+      },
+      {
+        title: 'Data Type',
+        dataIndex: 'datatype',
+        key: 'datatype',
+        width: 140,
+        render: renderDataType
+      },
+      {
+        title: 'Expression',
+        dataIndex: 'expression',
+        key: 'expression',
+        render: (expression, record) => <SemanticModelExpression 
expression={expression} name={record.name} />
+      },
+      {
+        title: 'Description',
+        dataIndex: 'description',
+        key: 'description',
+        ellipsis: true,
+        render: description => <span>{description || '-'}</span>
+      },
+      {
+        title: 'Actions',
+        key: 'actions',
+        fixed: 'right',
+        width: 90,
+        render: (_, record) => (
+          <Button
+            size='small'
+            aria-label={`Edit metric ${record.name}`}
+            onClick={() => setMetadataEdit({ kind: 'metric', name: record.name 
})}
+          >
+            Edit
+          </Button>
+        )
+      }
+    ],
+    []
+  )
+
+  const tabOptions = [
+    { label: 'Overview', key: 'Overview' },
+    { label: 'Datasets', key: 'Datasets' },
+    { label: 'Relationships', key: 'Relationships' },
+    { label: 'Metrics', key: 'Metrics' },
+    { label: 'Definition', key: 'Definition' }
+  ]
+
+  const {
+    resizableColumns: datasetResizableColumns,
+    components: datasetComponents,
+    tableWidth: datasetTableWidth
+  } = useAntdColumnResize(() => {
+    return { columns: topAlignedColumns(datasetColumns), minWidth: 100 }
+  }, [datasetColumns])
+
+  const {
+    resizableColumns: relationshipResizableColumns,
+    components: relationshipComponents,
+    tableWidth: relationshipTableWidth
+  } = useAntdColumnResize(() => {
+    return { columns: topAlignedColumns(relationshipColumns), minWidth: 100 }
+  }, [relationshipColumns])
+
+  const {
+    resizableColumns: metricResizableColumns,
+    components: metricComponents,
+    tableWidth: metricTableWidth
+  } = useAntdColumnResize(() => {
+    return { columns: topAlignedColumns(metricColumns), minWidth: 100 }
+  }, [metricColumns])
+
+  const expandedFieldsRow = dataset => (
+    <section aria-label={`${dataset.name} fields`} className='py-2'>
+      <div className='mb-3 flex items-center justify-between gap-3'>
+        <Typography.Text strong>Fields ({(dataset.fields || 
[]).length})</Typography.Text>
+        {hasMetadata(dataset) && (
+          <Button
+            size='small'
+            onClick={() =>
+              setMetadataDetails({
+                entity: dataset,
+                label: dataset.name,
+                target: { kind: 'dataset', name: dataset.name }
+              })
+            }
+          >
+            View dataset details
+          </Button>
+        )}
+      </div>
+      <div data-refer='semantic-model-fields-grid' className='divide-y 
divide-borderColor'>
+        {(dataset.fields || []).map(field => (
+          <section key={field.name} aria-label={`Field ${field.name}`} 
className='py-3'>
+            <div className='mb-2 flex items-start justify-between gap-3'>
+              <div className='min-w-0 break-words'>
+                <Typography.Text strong>{field.name}</Typography.Text>
+                {field.label && (
+                  <Typography.Text type='secondary' className='ml-2'>
+                    {field.label}
+                  </Typography.Text>
+                )}
+              </div>
+              <Button
+                size='small'
+                aria-label={`Edit field ${field.name}`}
+                onClick={() => setMetadataEdit({ kind: 'field', name: 
field.name, datasetName: dataset.name })}
+              >
+                Edit
+              </Button>
+            </div>
+            <div className='grid grid-cols-1 gap-3 sm:grid-cols-2'>
+              <div className='min-w-0'>
+                <div className='mb-2'>
+                  {renderDataType(field.datatype)}
+                  <Typography.Text type='secondary'>
+                    Time dimension: {field.dimension?.isTime ? 'Yes' : 'No'}
+                  </Typography.Text>
+                </div>
+                {field.description && <Paragraph 
className='break-words'>{field.description}</Paragraph>}
+                <Space wrap>
+                  {field.aiContext &&
+                    (typeof field.aiContext === 'string' || 
Object.keys(field.aiContext).length > 0) && (
+                      <Button
+                        size='small'
+                        aria-label={`${field.name} AI Context`}
+                        onClick={() => setFieldContext({ ...field, 
datasetName: dataset.name })}
+                      >
+                        AI Context
+                      </Button>
+                    )}
+                  {field.customExtensions?.length > 0 && (
+                    <Button
+                      size='small'
+                      aria-label={`${field.name} Vendor Extensions`}
+                      onClick={() =>
+                        setMetadataDetails({
+                          entity: field,
+                          label: field.name,
+                          target: { kind: 'field', name: field.name, 
datasetName: dataset.name }
+                        })
+                      }
+                    >
+                      Vendor Extensions
+                    </Button>
+                  )}
+                </Space>
+              </div>
+              <SemanticModelExpression expression={field.expression} 
name={field.name} />
+            </div>
+          </section>
+        ))}
+      </div>
+    </section>
+  )
+
+  return (
+    <div className={styles.page} data-refer='semantic-model-details'>
+      <Spin spinning={store.activatedDetailsLoading}>
+        <Flex className='mb-2' gap='small' align='flex-start'>
+          <div className='size-8'>
+            <Icons.iconify icon='mdi:graph-outline' className='my-icon-large' 
/>
+          </div>
+          <div className='relative bottom-1 min-w-0 flex-1'>
+            <Title level={3} style={{ marginBottom: '0.125rem' }}>
+              <div className='flex min-w-0 items-center gap-2'>
+                <span title={semanticModelName} className='min-w-0 truncate'>
+                  {semanticModelName || ''}
+                </span>
+                <Tooltip title='Edit'>
+                  <Button
+                    type='text'
+                    size='small'
+                    aria-label='Edit Semantic Model'
+                    icon={<Icons.Pencil className='size-4' />}
+                    disabled={store.activatedDetailsLoading || !definition}
+                    onClick={() => setOpenEdit(true)}
+                  />
+                </Tooltip>
+              </div>
+            </Title>
+            <Paragraph type='secondary' className='truncate' 
title={semanticModel?.comment} style={{ marginBottom: 0 }}>
+              {semanticModel?.comment}
+            </Paragraph>
+          </div>
+          <div className='ml-auto shrink-0'>
+            <SemanticModelExport
+              key={metadataObjectFullName}
+              metalake={metalake}
+              catalog={catalog}
+              schema={schema}
+              semanticModel={semanticModelName}
+              disabled={store.activatedDetailsLoading || !definition}
+            />
+          </div>
+        </Flex>
+      </Spin>
+      <Tabs data-refer='details-tabs' activeKey={tabKey} onChange={setTabKey} 
items={tabOptions} />
+      <Spin wrapperClassName={styles.body} 
spinning={store.activatedDetailsLoading}>
+        {tabKey === 'Overview' && (
+          <div className='min-h-0 overflow-auto'>
+            <Space split={<Divider type='vertical' />} wrap={true} 
className='mb-2'>
+              {anthEnable && (
+                <Space size={4}>
+                  <Tooltip title='Owned' placement='top'>
+                    <Icons.User className='size-4' color='grey' />
+                  </Tooltip>
+                  <GetOwner
+                    metalake={metalake}
+                    metadataObjectType={'semantic_model'}
+                    metadataObjectFullName={metadataObjectFullName}
+                  />
+                </Space>
+              )}
+              {semanticModel?.audit?.creator && (
+                <Space size={4}>
+                  <Tooltip title='Creator' placement='top'>
+                    <Icons.UserPen className='size-4' color='grey' />
+                  </Tooltip>
+                  <span>{semanticModel.audit.creator}</span>
+                </Space>
+              )}
+              <Space size={4}>
+                <Tooltip title='Created' placement='top'>
+                  <span className='inline-flex'>
+                    <Icons.iconify icon='mdi:clock-outline' className='size-4' 
props={{ color: 'grey' }} />
+                  </span>
+                </Tooltip>
+                <span>{createdAtText}</span>
+              </Space>
+              <Space size={4}>
+                <Tooltip title='Tags' placement='top'>
+                  <Icons.Tags className='size-4' color='grey' />
+                </Tooltip>
+                {store.currentEntityTags && store.currentEntityTags?.length > 
0 ? (
+                  <Popover placement='bottom' title={<span>Tags</span>} 
content={tagContent}>
+                    <a 
className='text-defaultPrimary'>{store.currentEntityTags?.length}</a>
+                  </Popover>
+                ) : (
+                  <a className='text-defaultPrimary'>0</a>
+                )}
+              </Space>
+              <Space size={4}>
+                <Tooltip title='Properties' placement='top'>
+                  <Icons.TableProperties className='size-4' color='grey' />
+                </Tooltip>
+                {properties && Object.keys(properties).length > 0 ? (
+                  <Popover placement='bottom' title={<span>Properties</span>} 
content={propertyContent}>
+                    <a 
className='text-defaultPrimary'>{Object.keys(properties).length}</a>
+                  </Popover>
+                ) : (
+                  <a className='text-defaultPrimary'>0</a>
+                )}
+              </Space>
+              {semanticModel?.audit?.lastModifier && (
+                <Space size={4} data-refer='semantic-model-last-modifier'>
+                  <Tooltip title='Last modified by'>
+                    <Icons.UserPen className='size-4' color='grey' />
+                  </Tooltip>
+                  <span>{semanticModel.audit.lastModifier}</span>
+                </Space>
+              )}
+              {lastModifiedAt && (
+                <Space size={4} data-refer='semantic-model-last-modified-time'>
+                  <Tooltip title='Last modified'>
+                    <Icons.History className='size-4' color='grey' />
+                  </Tooltip>
+                  <span>{lastModifiedText}</span>
+                </Space>
+              )}
+            </Space>
+            <Button
+              className='mb-3 block'
+              disabled={!definition}
+              onClick={() => setMetadataEdit({ kind: 'model', section: 
'context' })}
+            >
+              Edit Model AI Context
+            </Button>
+            {renderMetadata(definition, 'Model')}
+          </div>
+        )}
+        {tabKey === 'Datasets' && (
+          <>
+            <Space className='mb-3 shrink-0'>
+              <Input
+                className='w-64'
+                aria-label='Search fields'
+                placeholder='Search field name or label'
+                value={fieldSearch}
+                onChange={event => setFieldSearch(event.target.value)}
+              />
+              {fieldSearch && <Button onClick={() => setFieldSearch('')}>Clear 
field search</Button>}
+            </Space>
+            <Table
+              data-refer='semantic-model-datasets-grid'
+              className={styles.table}
+              size='small'
+              tableLayout='fixed'
+              scroll={{ x: datasetTableWidth, y: '100%' }}
+              dataSource={filteredDatasets}
+              columns={datasetResizableColumns}
+              components={datasetComponents}
+              expandable={{
+                expandedRowRender: expandedFieldsRow,
+                expandedRowKeys: fieldQuery ? filteredDatasets.map(dataset => 
dataset.key) : expandedDatasets,
+                onExpandedRowsChange: keys => {
+                  if (!fieldQuery) setExpandedDatasets(keys)
+                },
+                rowExpandable: dataset => (dataset.fields || []).length > 0 || 
hasMetadata(dataset)
+              }}
+              pagination={{ position: ['bottomCenter'], showSizeChanger: true 
}}
+            />
+          </>
+        )}
+        {tabKey === 'Relationships' && (
+          <Table
+            data-refer='semantic-model-relationships-grid'
+            className={styles.table}
+            size='small'
+            tableLayout='fixed'
+            scroll={{ x: relationshipTableWidth, y: '100%' }}
+            dataSource={relationships}
+            columns={relationshipResizableColumns}
+            components={relationshipComponents}
+            expandable={{
+              expandedRowRender: relationship =>
+                renderMetadata(relationship, relationship.name, { kind: 
'relationship', name: relationship.name }),
+              rowExpandable: hasMetadata
+            }}
+            pagination={{ position: ['bottomCenter'], showSizeChanger: true }}
+          />
+        )}
+        {tabKey === 'Metrics' && (
+          <>
+            <Space className='mb-3 shrink-0'>
+              <Input
+                aria-label='Search metrics'
+                placeholder='Search metric name'
+                value={metricSearch}
+                onChange={event => setMetricSearch(event.target.value)}
+              />
+              {metricSearch && <Button onClick={() => 
setMetricSearch('')}>Clear metric search</Button>}
+            </Space>
+            <Table
+              data-refer='semantic-model-metrics-grid'
+              className={styles.table}
+              size='small'
+              tableLayout='fixed'
+              scroll={{ x: metricTableWidth, y: '100%' }}
+              dataSource={filteredMetrics}
+              columns={metricResizableColumns}
+              components={metricComponents}
+              expandable={{
+                expandedRowRender: metric => renderMetadata(metric, 
metric.name, { kind: 'metric', name: metric.name }),
+                rowExpandable: hasMetadata
+              }}
+              pagination={{ position: ['bottomCenter'], showSizeChanger: true 
}}
+            />
+          </>
+        )}
+        {tabKey === 'Definition' &&
+          (definitionText ? (
+            <div className='flex min-h-0 flex-1 flex-col rounded border 
border-borderColor p-3'>
+              <Space className='mb-3 shrink-0'>
+                <Button onClick={() => setOpenEdit(true)}>Edit JSON 
definition</Button>
+                <Tooltip title='Copy definition' placement='top'>
+                  <button
+                    type='button'
+                    aria-label='Copy definition'
+                    className='inline-flex cursor-pointer items-center rounded 
border border-borderColor bg-transparent p-1 text-textSecondary 
transition-colors hover:text-defaultPrimary'
+                    onClick={onCopyDefinition}
+                  >
+                    <Icons.Copy className='size-4' />
+                  </button>
+                </Tooltip>
+                <Button onClick={() => setExpandedDefinition(true)}>Expand 
definition</Button>
+              </Space>
+              <pre
+                data-refer='semantic-model-definition'
+                className='m-0 min-h-0 flex-1 overflow-auto 
whitespace-pre-wrap break-all font-mono text-sm leading-6'
+              >
+                {definitionText}
+              </pre>
+            </div>
+          ) : (
+            <Paragraph type='secondary'>No definition available.</Paragraph>
+          ))}
+      </Spin>
+      {expandedDefinition && (
+        <Modal
+          open
+          title={`${semanticModelName} definition`}
+          width='100vw'
+          style={{ top: 0, maxWidth: '100vw', margin: 0, paddingBottom: 0 }}
+          styles={{
+            content: { height: '100vh', display: 'flex', flexDirection: 
'column', borderRadius: 0 },
+            body: { flex: 1, minHeight: 0, display: 'flex', flexDirection: 
'column' }
+          }}
+          footer={null}
+          onCancel={() => setExpandedDefinition(false)}
+        >
+          <Button className='mb-3 self-start' onClick={onCopyDefinition}>
+            Copy definition
+          </Button>
+          <pre className='m-0 min-h-0 flex-1 overflow-auto whitespace-pre-wrap 
break-all font-mono text-sm leading-6'>
+            {definitionText}
+          </pre>
+        </Modal>
+      )}
+      {metadataDetails && (
+        <Modal
+          open
+          title={`${metadataDetails.label} details`}
+          footer={null}
+          width={800}
+          style={{ top: 24 }}
+          styles={{ body: { maxHeight: 'calc(100vh - 140px)', overflowY: 
'auto' } }}
+          onCancel={() => setMetadataDetails(null)}
+        >
+          {renderMetadata(metadataDetails.entity, metadataDetails.label, 
metadataDetails.target)}
+        </Modal>
+      )}
+      {fieldContext && (
+        <Modal
+          open
+          title={`${fieldContext.name} AI Context`}
+          footer={null}
+          style={{ top: 24 }}
+          styles={{ body: { maxHeight: 'calc(100vh - 140px)', overflowY: 
'auto' } }}
+          onCancel={() => setFieldContext(null)}
+        >
+          <SemanticModelAIContext
+            context={fieldContext.aiContext}
+            inline
+            onEdit={() => {
+              setMetadataEdit({
+                kind: 'field',
+                name: fieldContext.name,
+                datasetName: fieldContext.datasetName,
+                section: 'context'
+              })
+              setFieldContext(null)
+            }}
+          />
+        </Modal>
+      )}
+      {metadataEdit && (
+        <SemanticMetadataEditor
+          definition={definition}

Review Comment:
   Fixed in f82d2dd99. Metadata editors require a current definition, and 
dependent field/dataset dialogs close when it disappears. Lookup/form 
initialization now reports "The selected metadata no longer exists"; the editor 
also has a closable error state if mounted with a missing definition or entity. 
Added mount-path tests for missing definitions, datasets, and fields, plus 
tests clearing the model while field/dataset dialogs are open.



##########
web-v2/web/src/app/catalogs/rightContent/entitiesContent/SemanticModelDetailsPage.js:
##########
@@ -0,0 +1,812 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+'use client'
+
+import { useEffect, useMemo, useRef, useState } from 'react'
+import {
+  Button,
+  Divider,
+  Flex,
+  Input,
+  Modal,
+  Popover,
+  Space,
+  Spin,
+  Table,
+  Tabs,
+  Tag,
+  Tooltip,
+  Typography,
+  message
+} from 'antd'
+import styles from './SemanticModelDetailsPage.module.css'
+import { useAntdColumnResize } from 'react-antd-column-resize'
+import { useRouter, useSearchParams } from 'next/navigation'
+import Tags from '@/components/CustomTags'
+import GetOwner from '@/components/GetOwner'
+import Icons from '@/components/Icons'
+import PropertiesContent from '@/components/PropertiesContent'
+import { useAppDispatch, useAppSelector } from '@/lib/hooks/useStore'
+import { getSemanticModelDetails } from '@/lib/store/metalakes'
+import { copyToClipboard } from '@/lib/utils'
+import { formatToDateTime, isValidDate } from '@/lib/utils/date'
+import { formatSemanticModelDefinition } from '@/lib/utils/semanticModel'
+import { ColumnTypeColorEnum } from '@/config'
+import SemanticModelExpression from './SemanticModelExpression'
+import SemanticModelAIContext from './SemanticModelAIContext'
+import SemanticModelExport from './SemanticModelExport'
+import SemanticModelExtensions from './SemanticModelExtensions'
+import CreateSemanticModelDialog from '../CreateSemanticModelDialog'
+import SemanticMetadataEditor from '../SemanticMetadataEditor'
+
+const { Title, Paragraph } = Typography
+
+const sourceFullName = source => {
+  if (!source) {
+    return '-'
+  }
+
+  return [...(source.namespace || []), source.name].filter(Boolean).join('.')
+}
+
+const renderDataType = datatype => {
+  if (!datatype) return <span>-</span>
+  const type = { DateTime: 'timestamp', DateTimeTz: 'timestamp_tz' }[datatype] 
|| datatype.toLowerCase()
+
+  return <Tag color={ColumnTypeColorEnum[type] || undefined}>{datatype}</Tag>
+}
+
+const topAlignedColumns = columns =>
+  columns.map(column => ({ ...column, onCell: () => ({ style: { verticalAlign: 
'top' } }) }))
+
+const renderColumns = columns => <span className='font-mono text-xs'>{(columns 
|| []).join(', ') || '-'}</span>
+
+const hasMetadata = entity => !!entity.aiContext || 
entity.customExtensions?.length > 0
+
+export default function SemanticModelDetailsPage() {
+  const searchParams = useSearchParams()
+  const router = useRouter()
+  const dispatch = useAppDispatch()
+  const metalake = searchParams.get('metalake')
+  const catalog = searchParams.get('catalog')
+  const schema = searchParams.get('schema')
+  const semanticModelName = searchParams.get('semanticModel')
+  const auth = useAppSelector(state => state.auth)
+  const { anthEnable } = auth
+  const store = useAppSelector(state => state.metalakes)
+  const semanticModel = store.activatedDetails?.name === semanticModelName ? 
store.activatedDetails : null

Review Comment:
   Agreed, name equality was insufficient. f82d2dd99 stores a typed identity 
containing the full metalake/catalog/schema/entity path alongside activated 
details. The Semantic Model page compares that identity before rendering, and 
navigation sets the active identity before awaiting any list fetch. Added tests 
that reject both a same-named table and a same-named model from another schema, 
including the intermediate render.



##########
web-v2/web/src/lib/store/metalakes/index.js:
##########
@@ -3086,6 +3314,48 @@ export const appMetalakesSlice = createSlice({
         toast.error(action.error.message)
       }
     })
+    builder.addCase(fetchSemanticModels.pending, (state, action) => {
+      const key = semanticModelSchemaKey(action.meta.arg)
+      state.semanticModelRequests[key] = { requestId: action.meta.requestId }

Review Comment:
   Fixed in f82d2dd99. Request tracking now retains only IDs while overlapping 
list/tree loads are in flight, and removes each schema entry when those 
requests settle, including failure and abort. It no longer caches full model 
lists. Stale tree responses use the current tree children as their fallback. 
Existing ordering tests still pass, and new tests verify cleanup across 
multiple schemas and completion paths.



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