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- Constraints reference — Django 4.0.6 ドキュメント 4105
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... o django.db.models . The standard convention is to use from django.db import models and refer to the cons ... verage the existing validate_unique() logic, and thus enable two-stage validation. In addition to Integri ... int to enforce. 例: UniqueConstraint ( fields = [ 'user' ], condition = Q ( status = 'DRAFT' ), name = 'u ... nique_draft_user' ) ensures that each user only has one draft. The ...
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https://man.plustar.jp/django/ref/models/constraints.html
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- 一対一 (one-to-one) 関係 — Django 4.0.6 ドキュメント 4105
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... o-one) 関係 ¶ To define a one-to-one relationship, use OneToOneField . In this example, a Place optionall ... here." ) There is no restaurant here. You can also use hasattr to avoid the need for exception catching: ... False Set the place using assignment notation. Because place is the primary key on Restaurant, the save w ...
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https://man.plustar.jp/django/topics/db/examples/one_to_one.html
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- django.core.files.uploadhandler — Django 4.0.6 ドキュメント 4068
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... hout consuming the rest of the upload. This will cause the browser to show a "connection reset" error. "" ... File upload handler to stream uploads into memory (used for small files). """ def handle_raw_input ( self ... content_length , boundary , encoding = None ): """ Use the content_length to signal whether or not this h ... andler should be used. """ # Check the content-length header to see if ...
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https://man.plustar.jp/django/_modules/django/core/files/uploadhandler.html
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- django.utils.decorators — Django 4.0.6 ドキュメント 4068
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... nc'. Also, wrap method.__get__() in a function because new # attributes can't be set on bound method obje ... he arguments to be passed to the middleware_class. Use like:: cache_page = decorator_from_middleware_with ... instance), return a view decorator. This lets you use middleware functionality on a per-view basis. The ...
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https://man.plustar.jp/django/_modules/django/utils/decorators.html
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- Installing Geospatial libraries — Django 4.0.6 ドキュメント 4068
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... next » Installing Geospatial libraries ¶ GeoDjango uses and/or provides interfaces for the following open ... oDjango interfaces to GEOS, GDAL, and GeoIP may be used independently of Django. In other words, no datab ... le: $ sudo make install $ sudo ldconfig 注釈 macOS users must install Xcode in order to compile software ... nd is the default internal geometry representation used by GeoDjango (it's behind the "lazy" geometries). ...
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https://man.plustar.jp/django/ref/contrib/gis/install/geolibs.html
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- Built-in Views — Django 4.0.6 ドキュメント 4068
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... you in local development. The serve() view can be used to serve any directory you give it. (This view is ... not hardened for production use and should be used only as a development aid; you ... front-end web server). The most likely example is user-uploaded content in MEDIA_ROOT . django.contrib.s ... for static assets and has no built-in handling for user-uploaded files, but you can have Django serve you ...
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https://man.plustar.jp/django/ref/views.html
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- Django 1.4.16 release notes — Django 4.0.6 ドキュメント 4068
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... e 1.4.14 security release and a bug preventing the use of some GEOS versions with GeoDjango. Bugfixes ¶ A ...
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https://man.plustar.jp/django/releases/1.4.16.html
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- Django 3.0.11 release notes — Django 4.0.6 ドキュメント 4068
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... s ¶ Fixed a regression in Django 3.0.7 that didn't use Subquery() aliases in the GROUP BY clause ( #32152 ...
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https://man.plustar.jp/django/releases/3.0.11.html
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- システムチェックフレームワーク — Django 4.0.6 ドキュメント 4068
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... ecks are not run as part of the WSGI stack that is used in deployment. If you need to run system checks o ... server, trigger them explicitly using check . Serious errors will prevent Django commands (such as runser ... ported to the console. If you have inspected the cause of a warning and are happy to ignore it, you can h ... list of database aliases whose connections may be used to inspect database level configuration. If datab ...
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https://man.plustar.jp/django/topics/checks.html
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- アグリゲーション — Django 4.0.6 ドキュメント 4068
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... annotate ( num_authors = Count ( 'authors' )) When used with an aggregate() clause, a filter has the effe ... o be filtered. The alias for the annotation can be used in filter() and exclude() clauses in the same way ... two annotations with two separate filters you can use the filter argument with any aggregate. For exampl ... annotation or aggregation. It's more efficient to use QuerySet.filter() to exclude rows. The aggregation ...
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https://man.plustar.jp/django/topics/db/aggregation.html
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