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- How to create database migrations — Django 4.0.6 ドキュメント 4801
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... can also provide hints that will be passed to the allow_migrate() method of database routers as **hints ... : myapp/dbrouters.py ¶ class MyRouter : def allow_migrate ( self , db , app_label , model_name = N ... ansparent as possible to the router. This is especially important for reusable and third-party apps. Migr ... constraint until we've populated unique values on all the rows. In the first empty migration file, add a ...
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https://man.plustar.jp/django/howto/writing-migrations.html
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- GeoDjango Database API — Django 4.0.6 ドキュメント 4801
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... ango.contrib.gis.db.backends.spatialite MySQL Spatial Limitations ¶ Before MySQL 5.6.1, spatial extension ... only support bounding box operations (what MySQL calls minimum bounding rectangles, or MBR). Specificall ... tly only implemented for the PostGIS backend. Spatial lookups are available for raster fields, but spatia ... decimal [2] ), and GeoJSON (see RFC 7946 ). Essentially, if the input is not a GEOSGeometry object, the g ...
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https://man.plustar.jp/django/ref/contrib/gis/db-api.html
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- LayerMapping data import utility — Django 4.0.6 ドキュメント 4801
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... tings. When DEBUG is set to True , Django automatically logs every SQL query -- and when SQL statements c ... me: %s ' % self . name Use LayerMapping to extract all the features and place them in the database: >>> f ... source_srs Use this to specify the source SRS manually (for example, some shapefiles don't come with a ' ... For example, 'latin-1' , 'utf-8' , and 'cp437' are all valid encoding parameters. transaction_mode May be ...
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https://man.plustar.jp/django/ref/contrib/gis/layermapping.html
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- Database Functions — Django 4.0.6 ドキュメント 4801
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... th = 50 , null = True , blank = True ) We don't usually recommend allowing null=True for CharField since ... this allows the field to have two "empty values", but it's ... return the largest non-null expression, or null if all expressions are null . SQLite, Oracle, and MySQL: ... een databases: PostgreSQL: Least will return the smallest non-null expression, or null if all expressions ...
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https://man.plustar.jp/django/ref/models/database-functions.html
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- Related objects reference — Django 4.0.6 ドキュメント 4801
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... ad have the related manager perform the update by calling e.save() . Using add() with a many-to-many rela ... tionship, however, will not call any save() methods (the bulk argument doesn't exis ... ccepts either model instances or field values, normally primary keys, as the *objs argument. Use the thro ... mediate model instance(s), if needed. You can use callables as values in the through_defaults dictionary ...
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https://man.plustar.jp/django/ref/models/relations.html
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- Django 1.3.5 release notes — Django 4.0.6 ドキュメント 4801
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... ngo to generate URLs pointing to arbitrary, potentially-malicious domains. In response to further input r ... der validation. Rather than attempt to accommodate all features HTTP supports here, Django's Host header ... validation attempts to support a smaller, but far more common, subset: Hostnames must con ... cts cannot lead to arbitrary third-party sites. 2. All of Django's own built-in views -- primarily in the ...
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https://man.plustar.jp/django/releases/1.3.5.html
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- Django 1.4.3 release notes — Django 4.0.6 ドキュメント 4801
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... ngo to generate URLs pointing to arbitrary, potentially-malicious domains. In response to further input r ... der validation. Rather than attempt to accommodate all features HTTP supports here, Django's Host header ... validation attempts to support a smaller, but far more common, subset: Hostnames must con ... cts cannot lead to arbitrary third-party sites. 2. All of Django's own built-in views -- primarily in the ...
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https://man.plustar.jp/django/releases/1.4.3.html
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- Django 1.6.5 release notes — Django 4.0.6 ドキュメント 4801
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... al bugs in 1.6.4. Issue: Caches may incorrectly be allowed to store and serve private data ¶ In certain s ... ituations, Django may allow caches to store private data related to a partic ... equests with a different session, or no session at all. This can lead to information disclosure and can b ... ion, modifications to the Cache-Control header for all Internet Explorer requests with a Content-Disposit ...
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https://man.plustar.jp/django/releases/1.6.5.html
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- Simple mixins — Django 4.0.6 ドキュメント 4741
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... ( 1 , 100 ) return context The template context of all class-based generic views include a view variable ... instance in the template context may expose potentially hazardous methods to template authors. To prevent ... methods like this from being called in the template, set alters_data=True on those m ... , which tells Django to search for the template in all configured engines. response_class ¶ The response ...
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https://man.plustar.jp/django/ref/class-based-views/mixins-simple.html
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- Testing GeoDjango apps — Django 4.0.6 ドキュメント 4741
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... vent this additional query may set the version manually using a 3-tuple of integers specifying the major, ... to your database user. By default, the PostGIS installer on Windows includes a template spatial database ... hen running the Django test suite with runtests.py all of the databases in the settings file must be usin ... y file in the same directory as runtests.py , then all Django and GeoDjango tests would be performed when ...
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https://man.plustar.jp/django/ref/contrib/gis/testing.html
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