there are two issues:
1) this
db(db.devtasklist.projectid == db.Project.id).select(db.Project.ProjectName)
does not do anything as it.
2) this
row.devtasklist.projectid
is an Project object but you do not access its attributes.
SOLUTION II (one extra query per record)
*In views:*
<tr>
<td>{{=row.devtasklist.projectid.ProjectName}}</td>
</tr>
*In controller:*
def listdevtasklist():
print_time = datetime.now()
rows = db(db.devtasklist.userid == db.auth_user.id
).select(orderby=db.auth_user.FullName)
return locals()
SOLUTION II (build a map)
SOLUTION II (one extra query per record)
*In views:*
<tr>
<td>{{=names[row.devtasklist.projectid]}}</td>
</tr>
*In controller:*
def listdevtasklist():
print_time = datetime.now()
rows = db(db.devtasklist.userid == db.auth_user.id
).select(orderby=db.auth_user.FullName)
ids = set(row.devtasklist.projectid for row in rows)
projects = db(db.project.id.belongs(ids)).select(db.project.id,
db.Project.ProjectName)
names = {row.id: row.ProjectName for row in projects}
return locals()
On Saturday, 7 December 2019 23:51:09 UTC-8, Josh Butterworth wrote:
>
> Hi everyone,
>
> this is probably a trivial issue but I'm struggling with it! When I try
> and reference a field from another table I can get it to reference the id
> of the desired row, however I can't get it to reference the name associated
> with that id. I've highlighted the lines of code that are causing me issues.
>
> This is my code atm:
> *In views:*
>
> <tr>
> <td><a href="{{=URL('editdevtasklist', args=row.devtasklist.id
> )}}">{{=row.auth_user.FullName}}</a></td>
> <td>{{=row.devtasklist.jobtype}}</td>
> <td>{{=row.devtasklist.priority}}</td>
> <td>{{=row.devtasklist.projectid}}</td>
> <td>{{=row.devtasklist.heading}}</td>
> <td>{{=row.devtasklist.attachment}}</td>
> <td>{{=row.devtasklist.duedate}}</td>
> </tr>
>
> # When the above code is referenced I get only the 'id number'
> # When the code below is used I receive an attribute error...
>
> <td>{{=row.Project.ProjectName}}</td>
>
> *In controller:*
> def listdevtasklist():
>
> print_time = datetime.now()
> rows = db(db.devtasklist.userid == db.auth_user.id
> ).select(orderby=db.auth_user.FullName)
> db(db.devtasklist.projectid == db.Project.id
> ).select(db.Project.ProjectName)
> return locals()
>
> *In db:*
> db.define_table('devtasklist',
> Field("userid", "reference auth_user", label="User",
> requires=IS_IN_DB(db, db.auth_user.id, '%(first_name)s %(last_name)s')),
> Field('projectid', 'reference Project', label="Project",
> requires=IS_IN_DB(db, db.Project.id, '%(ProjectName)s')),
> Field("jobtype", requires = IS_IN_SET(("Admin", "Data
> analysis", "Data upload", "Fulcrum", "GIS", "Survey rep", "Programming",
> "Reports"))),
> Field("priority", label="Priority Level", requires =
> IS_IN_SET(task_priorities)),
> Field("duedate", "date", label="Due on", requires =
> IS_DATE(format=('%d-%m-%Y'))),
> Field("attachment","upload", autodelete=True,
> uploadseparate=True),
> Field("heading", label="Heading"),
> Field('completed', "boolean")
> )
>
>
>
> The confusing thing for me is that the userid converts into a 'FullName'
> absolutely fine, but the projectid won't convert into a 'ProjectName'...
>
> Any help greatly appreciated.
>
> J
>
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