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Database Functions — Django 4.0.6 ドキュメント 12423
" + tagname + " "); } }); $("div.highlight\\-html\\+django span.nf").each(function(i, elem) { va ... Index | Modules « previous | up | next » Database Functions ¶ The classes documented below provide a way for u ... sers to use functions provided by the underlying database as annotations ... , aggregations, or filters in Django. Functions are also expressions , so they can be used and com ... bined with other expressions like aggregate functions . We'll be using the following model in examples o ...
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索引 — Django 4.0.6 ドキュメント 11824
" + tagname + " "); } }); $("div.highlight\\-html\\+django span.nf").each(function(i, elem) { va ... ontrib.gis.measure のクラス) Abs (django.db.models.functions のクラス) ABSOLUTE_URL_OVERRIDES setting abstract ... ntrib.auth.mixins のクラス) ACos (django.db.models.functions のクラス) action() (django.contrib.admin モジュール ... (組み込みクラス) Area (django.contrib.gis.db.models.functions のクラス) (django.contrib.gis.measure のクラス) ar ... のメソッド) AsGeoJSON (django.contrib.gis.db.models.functions のクラス) AsGML (django.contrib.gis.db.models.func ...
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PostgreSQL specific database functions — Django 4.0.6 ドキュメント 10195
" + tagname + " "); } }); $("div.highlight\\-html\\+django span.nf").each(function(i, elem) { va ... revious | up | next » PostgreSQL specific database functions ¶ All of these functions are available from the dj ... ango.contrib.postgres.functions module. RandomUUID ¶ class RandomUUID ¶ Returns a ... t. Usage example: >>> from django.contrib.postgres.functions import RandomUUID >>> Article . objects . update ( ... tatement. This is a complement to django.db.models.functions.Now , which returns the date and time of the curre ...
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Pythonモジュール索引 — Django 4.0.6 ドキュメント 10144
" + tagname + " "); } }); $("div.highlight\\-html\\+django span.nf").each(function(i, elem) { va ... model and field API. django.contrib.gis.db.models.functions Geographic Database Functions django.contrib.gis.f ... ostgres.aggregates PostgreSQL specific aggregation functions django.contrib.postgres.constraints PostgreSQL spe ... ields.related Related field types django.db.models.functions Database Functions django.db.models.indexes django ... ilt-in form fields. django.forms.formsets Django's functions for building formsets. django.forms.models Django' ...
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PostgreSQL specific aggregation functions — Django 4.0.6 ドキュメント 8604
" + tagname + " "); } }); $("div.highlight\\-html\\+django span.nf").each(function(i, elem) { va ... ious | up | next » PostgreSQL specific aggregation functions ¶ These functions are available from the django.co ... d in more detail in the PostgreSQL docs . 注釈 All functions come without default aliases, so you must explicit ... ault keyword argument. General-purpose aggregation functions ¶ ArrayAgg ¶ class ArrayAgg ( expression , distinc ... t, explicitly set default to Value('') . Aggregate functions for statistics ¶ y and x ¶ The arguments y and x f ...
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Django Deprecation Timeline — Django 4.0.6 ドキュメント 8553
" + tagname + " "); } }); $("div.highlight\\-html\\+django span.nf").each(function(i, elem) { va ... jango.utils.timezone.make_aware() django.db.models.functions.Trunc() django.db.models.functions.TruncSecond() d ... jango.db.models.functions.TruncMinute() django.db.models.functions.TruncHour ... () django.db.models.functions.TruncDay() django.db.models.functions.TruncWeek() ... django.db.models.functions.TruncMonth() django.db.models.functions.TruncQuart ...
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条件付きビュー — Django 4.0.6 ドキュメント 8451
" + tagname + " "); } }); $("div.highlight\\-html\\+django span.nf").each(function(i, elem) { va ... ontrol you may use per-view conditional processing functions. condition デコレータ ¶ Sometimes (in fact, quite ... often) you can create functions to rapidly compute the ETag value or the last-modi ... construct the full view. Django can then use these functions to provide an "early bailout" option for the view ... odified since the last request, perhaps. These two functions are passed as parameters to the django.views.decor ...
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django.contrib.postgres — Django 4.0.6 ドキュメント 8260
" + tagname + " "); } }); $("div.highlight\\-html\\+django span.nf").each(function(i, elem) { va ... the most to gain. PostgreSQL specific aggregation functions General-purpose aggregation functions Aggregate fu ... フィールド ウィジェット PostgreSQL specific database functions RandomUUID TransactionNow PostgreSQL specific mode ... ーク 次のトピックへ PostgreSQL specific aggregation functions 関連キーワード PostgreSQL , contrib , postgres , f ... ields , functions , database , data , not , search , expressions クイ ...
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Unicode data — Django 4.0.6 ドキュメント 8159
" + tagname + " "); } }); $("div.highlight\\-html\\+django span.nf").each(function(i, elem) { va ... internationalization documentation. Useful utility functions ¶ Because some string operations come up again and ... again, Django ships with a few useful functions that should make working with string and bytestrin ... g objects a bit easier. Conversion functions ¶ The django.utils.encoding module contains a few ... URI that can contain Unicode characters. Use these functions for quoting and converting an IRI to a URI: The dj ...
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クエリー式 — Django 4.0.6 ドキュメント 8108
" + tagname + " "); } }); $("div.highlight\\-html\\+django span.nf").each(function(i, elem) { va ... els import Count , F , Value from django.db.models.functions import Length , Upper from django.db.models.lookup ... o.db.models import CharField from django.db.models.functions import Length CharField . register_lookup ( Length ... base type of all expressions that involve database functions like COALESCE and LOWER , or aggregates like SUM . ... or they can be used to build a library of database functions: class Lower ( Func ): function = 'LOWER' queryset ...
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