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データベースアクセスの最適化 — Django 4.0.6 ドキュメント 4372: " + tagname + " "); } }); $("div.highlight\\-html\\+django span.nf").each(function(i, elem) { va ... , attributes that are not callable will be cached. For example, assuming the example blog models : >>> en ... ( id = 1 ) >>> entry . authors . all () # query performed >>> entry . authors . all () # query performed ... ppropriate usage of values() . These can be useful for replacing model objects in template code - as long ... st of the non-text, non-VARCHAR data from the disk for a single row in the results, even if it ends up on ...; https://man.plustar.jp/django/topics/db/optimization.html - [similar]

ファイルの管理 — Django 4.0.6 ドキュメント 4372: " + tagname + " "); } }); $("div.highlight\\-html\\+django span.nf").each(function(i, elem) { va ... This document describes Django's file access APIs for files such as those uploaded by a user. The lower ... el APIs are general enough that you could use them for other purposes. If you want to handle "static file ... be relied on until after the model has been saved. For example, you can change the file name by setting t ... e data cannot be used without reopening the image. For example: >>> from PIL import Image >>> car = Car . ...; https://man.plustar.jp/django/topics/files.html - [similar]

How to create PDF files — Django 4.0.6 ドキュメント 4338: " + tagname + " "); } }); $("div.highlight\\-html\\+django span.nf").each(function(i, elem) { va ... dynamically is that you can create customized PDFs for different purposes -- say, for different users or ... different pieces of content. For example, Django was used at kusports.com to genera ... r-friendly NCAA tournament brackets, as PDF files, for people participating in a March Madness contest. R ... (not coincidentally, a PDF file) is also available for download. You can install ReportLab with pip :   ...; https://man.plustar.jp/django/howto/outputting-pdf.html - [similar]

LayerMapping data import utility — Django 4.0.6 ドキュメント 4314: " + tagname + " "); } }); $("div.highlight\\-html\\+django span.nf").each(function(i, elem) { va ... ps to the 'str' layer field. 'poly' : 'POLYGON', # For geometry fields use OGC name. } # The mapping is a ... ed: Name: 2 Saved: Name: 3 Here, LayerMapping transformed the three geometries from the shapefile in thei ... (NAD83). If no spatial reference system is defined for the layer, use the source_srs keyword with a Spati ... ne , transaction_mode = 'commit_on_success' , transform = True , unique = True , using = 'default' ) ¶ Th ...; https://man.plustar.jp/django/ref/contrib/gis/layermapping.html - [similar]

Django 1.2.4 release notes — Django 4.0.6 ドキュメント 4314: " + tagname + " "); } }); $("div.highlight\\-html\\+django span.nf").each(function(i, elem) { va ... Django 1.2 series, improving the stability and performance of the Django 1.2 codebase. With one exceptio ... mprovements. Django 1.2.4 is a recommended upgrade for any development or deployment currently using or t ... argeting Django 1.2. For full details on the new features, backwards incomp ... relationships which will generate automatic links for filtering. One historically-undocumented and -unof ...; https://man.plustar.jp/django/releases/1.2.4.html - [similar]

アプリケーション — Django 4.0.6 ドキュメント 4297: " + tagname + " "); } }); $("div.highlight\\-html\\+django span.nf").each(function(i, elem) { va ... the apps.py submodule, it uses that configuration for the application. This behavior may be disabled by ... ¶ Application configuration objects store metadata for an application. Some attributes can be configured ... ます。 AppConfig. verbose_name ¶ Human-readable name for the application, e.g. "Administration". This attri ... ig subclass. In a few situations this is required; for instance if the app package is a namespace package ...; https://man.plustar.jp/django/ref/applications.html - [similar]

Signals — Django 4.0.6 ドキュメント 4297: " + tagname + " "); } }); $("div.highlight\\-html\\+django span.nf").each(function(i, elem) { va ... e_save & django.db.models.signals.post_save Sent before or after a model's save() method is called. djang ... lete & django.db.models.signals.post_delete Sent before or after a model's delete() method or queryset's ... TTP request. See the built-in signal documentation for a complete list, and a complete explanation of eac ... e connected to this signal. See Receiver functions for more information. sender -- Specifies a particular ...; https://man.plustar.jp/django/topics/signals.html - [similar]

メッセージフレームワーク — Django 4.0.6 ドキュメント 4280: " + tagname + " "); } }); $("div.highlight\\-html\\+django span.nf").each(function(i, elem) { va ... えると破棄されます。 Changed in Django 3.2: Messages format was changed to the RFC 6265 compliant format. c ... { % if messages % } < ul class = "messages" > { % for message in messages % } < li { % if message . tags ... s }}" { % endif % } > {{ message }} </ li > { % endfor % } </ ul > { % endif % } コンテクストプロセッサー ... otherwise the message storage will not be cleared for the next request. コンテクストプロセッサーは、メッ ...; https://man.plustar.jp/django/ref/contrib/messages.html - [similar]

The redirects app — Django 4.0.6 ドキュメント 4280: " + tagname + " "); } }); $("div.highlight\\-html\\+django span.nf").each(function(i, elem) { va ... edirects in a database and handles the redirecting for you. It uses the HTTP response status code 301 Mov ... ror, this middleware checks the redirects database for the requested URL as a last resort. Specifically, ... it checks for a redirect with the given old_path with a site ID ... essed as usual. The middleware only gets activated for 404s -- not for 500s or responses of any other sta ...; https://man.plustar.jp/django/ref/contrib/redirects.html - [similar]

django.db.transaction — Django 4.0.6 ドキュメント 4264: " + tagname + " "); } }); $("div.highlight\\-html\\+django span.nf").each(function(i, elem) { va ... side the current transaction. Return an identifier for the savepoint that will be used for the subsequent ... sing = None ): """Get the "needs rollback" flag -- for *advanced use* only.""" return get_connection ( us ... e ): """ Set or unset the "needs rollback" flag -- for *advanced use* only. When `rollback` is `True`, tr ... `savepoint=True` (that's the default). Use this to force a rollback without raising an exception. When `r ...; https://man.plustar.jp/django/_modules/django/db/transaction.html - [similar]

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