Re: [Django] #29148: Explain how to use QuerySet.get_or_create() with Q objects

[Django]

#29148: Explain how to use QuerySet.get_or_create() with Q objects
---+---
 Reporter:  Mike Lissner   |Owner:  Dhruv Singh
 Type:  New feature|   Status:  closed
Component:  Documentation  |  Version:  2.0
 Severity:  Normal |   Resolution:  fixed
 Keywords: | Triage Stage:  Accepted
Has patch:  1  |  Needs documentation:  0
  Needs tests:  0  |  Patch needs improvement:  1
Easy pickings:  1  |UI/UX:  0
---+---
Changes (by Tim Graham ):

 * status:  assigned => closed
 * resolution:   => fixed


Comment:

 In [changeset:"34c522283710c3866833134ddf1a397da03999e8" 34c52228]:
 {{{
 #!CommitTicketReference repository=""
 revision="34c522283710c3866833134ddf1a397da03999e8"
 Fixed #29148 -- Doc'd how to use get_or_create() with Q objects.
 }}}

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Re: [Django] #29148: Explain how to use QuerySet.get_or_create() with Q objects

[Django]

#29148: Explain how to use QuerySet.get_or_create() with Q objects
---+---
 Reporter:  Mike Lissner   |Owner:  Dhruv Singh
 Type:  New feature|   Status:  assigned
Component:  Documentation  |  Version:  2.0
 Severity:  Normal |   Resolution:
 Keywords: | Triage Stage:  Accepted
Has patch:  1  |  Needs documentation:  0
  Needs tests:  0  |  Patch needs improvement:  1
Easy pickings:  1  |UI/UX:  0
---+---
Changes (by Tim Graham):

 * needs_better_patch:  0 => 1


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Ticket URL: 
Django 
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Re: [Django] #29148: Explain how to use QuerySet.get_or_create() with Q objects

[Django]

#29148: Explain how to use QuerySet.get_or_create() with Q objects
---+---
 Reporter:  Mike Lissner   |Owner:  Dhruv Singh
 Type:  New feature|   Status:  assigned
Component:  Documentation  |  Version:  2.0
 Severity:  Normal |   Resolution:
 Keywords: | Triage Stage:  Accepted
Has patch:  1  |  Needs documentation:  0
  Needs tests:  0  |  Patch needs improvement:  0
Easy pickings:  1  |UI/UX:  0
---+---
Changes (by Herbert Fortes):

 * has_patch:  0 => 1


Comment:

 [PR](https://github.com/django/django/pull/9750)

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

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Re: [Django] #29148: Explain how to use QuerySet.get_or_create() with Q objects

[Django]

#29148: Explain how to use QuerySet.get_or_create() with Q objects
---+---
 Reporter:  Mike Lissner   |Owner:  Dhruv Singh
 Type:  New feature|   Status:  assigned
Component:  Documentation  |  Version:  2.0
 Severity:  Normal |   Resolution:
 Keywords: | Triage Stage:  Accepted
Has patch:  0  |  Needs documentation:  0
  Needs tests:  0  |  Patch needs improvement:  0
Easy pickings:  1  |UI/UX:  0
---+---

Comment (by Herbert Fortes):

 Hi Dhruv Singh,

 Do you still intent to make a PR to close the ticket?

 I have something like this:

 Differently from :meth:`~django.db.models.query.QuerySet.get` method, the
 :meth:`~django.db.models.query.QuerySet.get_or_create` method must be used
 with the :meth:`~django.db.models.query.QuerySet.filter` lookup function.
 For example::

 Poll.objects.filter(
 Q(first_name='Bryan') | Q(first_name='Bruce')
 ).get_or_create({'last_name': 'Harrison'})

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Ticket URL: 
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The Web framework for perfectionists with deadlines.

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Re: [Django] #29148: Explain how to use QuerySet.get_or_create() with Q objects

[Django]

#29148: Explain how to use QuerySet.get_or_create() with Q objects
---+---
 Reporter:  Mike Lissner   |Owner:  Dhruv Singh
 Type:  New feature|   Status:  assigned
Component:  Documentation  |  Version:  2.0
 Severity:  Normal |   Resolution:
 Keywords: | Triage Stage:  Accepted
Has patch:  0  |  Needs documentation:  0
  Needs tests:  0  |  Patch needs improvement:  0
Easy pickings:  1  |UI/UX:  0
---+---
Changes (by Herbert Fortes):

 * cc: Herbert Fortes (added)


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

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Re: [Django] #29148: Explain how to use QuerySet.get_or_create() with Q objects

[Django]

#29148: Explain how to use QuerySet.get_or_create() with Q objects
---+---
 Reporter:  Mike Lissner   |Owner:  Dhruv Singh
 Type:  New feature|   Status:  assigned
Component:  Documentation  |  Version:  2.0
 Severity:  Normal |   Resolution:
 Keywords: | Triage Stage:  Accepted
Has patch:  0  |  Needs documentation:  0
  Needs tests:  0  |  Patch needs improvement:  0
Easy pickings:  1  |UI/UX:  0
---+---

Comment (by Herbert Fortes):

 I think a good place to put an example is on 'Complex lookups with Q
 objects' .

 There has explanation on how use it with "...lookup functions that takes
 keyword-arguments (e.g. filter(), exclude(), get())..."

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Ticket URL: 
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Re: [Django] #29148: Explain how to use QuerySet.get_or_create() with Q objects

[Django]

#29148: Explain how to use QuerySet.get_or_create() with Q objects
---+---
 Reporter:  Mike Lissner   |Owner:  Dhruv Singh
 Type:  New feature|   Status:  assigned
Component:  Documentation  |  Version:  2.0
 Severity:  Normal |   Resolution:
 Keywords: | Triage Stage:  Accepted
Has patch:  0  |  Needs documentation:  0
  Needs tests:  0  |  Patch needs improvement:  0
Easy pickings:  1  |UI/UX:  0
---+---
Changes (by Dhruv Singh):

 * status:  new => assigned
 * cc: Dhruv Singh (added)
 * owner:  nobody => Dhruv Singh


Comment:

 Trying to start to give my bit to the open source community.
 This feels like a good small starting step.
 As the description of the ticket suggests, will add an example of using Q
 objects with get_or_create().
 Please suggest if something else is needed.

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Ticket URL: 
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Re: [Django] #29148: Explain how to use QuerySet.get_or_create() with Q objects (was: Add filter().get_or_create() chaining to documentation to explain how to use get_or_create with Q objects)

[Django]

#29148: Explain how to use QuerySet.get_or_create() with Q objects
---+
 Reporter:  Mike Lissner   |Owner:  nobody
 Type:  New feature|   Status:  new
Component:  Documentation  |  Version:  2.0
 Severity:  Normal |   Resolution:
 Keywords: | Triage Stage:  Accepted
Has patch:  0  |  Needs documentation:  0
  Needs tests:  0  |  Patch needs improvement:  0
Easy pickings:  1  |UI/UX:  0
---+
Changes (by Tim Graham):

 * stage:  Unreviewed => Accepted


Old description:

> This technique is useful if you want to use Q objects in conjunction with
> the get or create method, and it's documented in a few places around the
> web.
>
> I brought this up in the forums yesterday and somebody suggested that it
> be documented:
>
> https://groups.google.com/forum/?utm_medium=email_source=footer#!msg
> /django-developers/e3sJ6OiHEd0/Yrg-Z9uRAgAJ
>
> I gave this a try, but I don't understand the documentation system and I
> sadly don't have time to figure it out. Seems though like a change could
> go here:
>
> https://github.com/django/django/blob/master/docs/ref/models/querysets.txt#L1886
>
> I think something along the lines of:
>
> > get_or_create() can be used with Q objects by chaining them together
> like so:
>
> > An example
>
> > When this is done, the logic performs as above, but matches are made
> according to the query in the Q object.
>
> I imagine this also works for update_or_create, but I'm not sure how to
> document that too. Maybe just a quick mention:
>
> > update_or_create() can be used with Q objects using the same technique
> as documented above for get_or_create()

New description:

 This technique is useful if you want to use Q objects in conjunction with
 the get or create method, and it's documented in a few places around the
 web.

 I brought this up in the forums yesterday and somebody suggested that it
 be documented:

 https://groups.google.com/forum/?utm_medium=email_source=footer#!msg
 /django-developers/e3sJ6OiHEd0/Yrg-Z9uRAgAJ

 I gave this a try, but I don't understand the documentation system and I
 sadly don't have time to figure it out. Seems though like a change could
 go here:

 
https://github.com/django/django/blob/master/docs/ref/models/querysets.txt#L1886

 I think something along the lines of:

 > get_or_create() can be used with Q objects by chaining them together
 like so:
 >
 > An example
 >
 > When this is done, the logic performs as above, but matches are made
 according to the query in the Q object.

 I imagine this also works for update_or_create, but I'm not sure how to
 document that too. Maybe just a quick mention:

 > update_or_create() can be used with Q objects using the same technique
 as documented above for get_or_create()

--

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