Re: [Django] #30214: Indexes defined on abstract base classes are not propagated to subclasses

[Django]

#30214: Indexes defined on abstract base classes are not propagated to 
subclasses
-+-
 Reporter:  wKavey   |Owner:  nobody
 Type:  Bug  |   Status:  closed
Component:  Database layer   |  Version:  2.1
  (models, ORM)  |
 Severity:  Normal   |   Resolution:  invalid
 Keywords:  abstract base class  | Triage Stage:
 |  Unreviewed
Has patch:  0|  Needs documentation:  0
  Needs tests:  0|  Patch needs improvement:  0
Easy pickings:  0|UI/UX:  0
-+-
Changes (by Tim Graham):

 * status:  new => closed
 * resolution:   => invalid
 * type:  Uncategorized => Bug


Comment:

 Normal Python inheritance rules apply to `Meta` Use:
 {{{
 indexes = CustomBase.Meta.indexes + [
 models.Index(fields=['ip_address'], name='ip_address')
 ]
 }}}

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Re: [Django] #30214: Indexes defined on abstract base classes are not propagated to subclasses

[Django]

#30214: Indexes defined on abstract base classes are not propagated to 
subclasses
-+-
 Reporter:  wKavey   |Owner:  nobody
 Type:  Uncategorized|   Status:  new
Component:  Database layer   |  Version:  2.1
  (models, ORM)  |
 Severity:  Normal   |   Resolution:
 Keywords:  abstract base class  | Triage Stage:
 |  Unreviewed
Has patch:  0|  Needs documentation:  0
  Needs tests:  0|  Patch needs improvement:  0
Easy pickings:  0|UI/UX:  0
-+-

Comment (by Simon Charette):

 Does it happen even if you don't define any `CustomSub.Meta.indexes`?

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Ticket URL: 
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[Django] #30214: Indexes defined on abstract base classes are not propagated to subclasses

[Django]

#30214: Indexes defined on abstract base classes are not propagated to 
subclasses
-+-
   Reporter:  wKavey |  Owner:  nobody
   Type: | Status:  new
  Uncategorized  |
  Component:  Database   |Version:  2.1
  layer (models, ORM)|
   Severity:  Normal |   Keywords:  abstract base class
   Triage Stage: |  Has patch:  0
  Unreviewed |
Needs documentation:  0  |Needs tests:  0
Patch needs improvement:  0  |  Easy pickings:  0
  UI/UX:  0  |
-+-
 It seems that if I define a model with Meta.abstract=True then any indexes
 I define in that model are not propgated to subclasses.

 Example:
 {{{
 class CustomBase(models.Model):
 id = models.AutoField(primary_key=True)
 name = models.CharField(max_length=100)

 class Meta:
 abstract = True
 indexes = [
 models.Index(fields=['name'], name='name_idx')
 ]

 class CustomSub(CustomBase):
 ip_address = models.GenericIPAddressField()

 class Meta:
 indexes = [
 models.Index(fields=['ip_address'], name='ip_address')
 ]
 }}}

 Then


 {{{
 >> python manage.py makemigrations
 - Create model CustomSub
 - Create index ip_address on field(s) ip_address of model customsub
 }}}

 No mention of index 'name_idx' from the base class

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Ticket URL: 
Django 
The Web framework for perfectionists with deadlines.

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