... ラインオプション _ __bool__() (backends.base.SessionBase のメソッド) __contains__() (backends.base.SessionBase のメソッド) (QueryDict のメソッド) __delitem__() (backends.base.SessionBase のメソッド) (HttpResponse のメソッド) __eq__() (Model のメソッド) ... tance のメソッド) __getitem__() (backends.base.SessionBase のメソッド) (HttpResponse のメソッド) (OGRGeometry のメソッド) (QueryDict のメソッド) (SpatialReference のメソッド) __hash__() (Model のメソッド) __init__() (HttpResponse のメソッド) (QueryDic ... メソッド) __len__() (OGRGeometry のメソッド) __setitem__() (backends.base.SessionBase のメソッド) (HttpResponse のメソッド) (QueryDict のメソッド) __str__() (Model のメソッド) (ModelChoiceIteratorValue のメソッド) _base_manager (Model の属性) _default_m ... ... ラインオプション _ __bool__() (backends.base.SessionBase のメソッド) __contains__() (backends.base.SessionBase のメソッド) (QueryDict のメソッド) __delitem__() (backends.base.SessionBase のメソッド) (HttpResponse のメソッド) __eq__() (Model のメソッド) ... tance のメソッド) __getitem__() (backends.base.SessionBase のメソッド) (HttpResponse のメソッド) (OGRGeometry のメソッド) (QueryDict のメソッド) (SpatialReference のメソッド) __hash__() (Model のメソッド) __init__() (HttpResponse のメソッド) (QueryDic ... メソッド) __len__() (OGRGeometry のメソッド) __setitem__() (backends.base.SessionBase のメソッド) (HttpResponse のメソッド) (QueryDict のメソッド) __str__() (Model のメソッド) (ModelChoiceIteratorValue のメソッド) _base_manager (Model の属性) _default_m ... ... ase. You can customize the behavior of this fetching with a fetch mode , making it more efficient or even blocking it. Use QuerySet.fetch_mode() to set the fetch mode for model instances fetched by a QuerySet : from django.db import models books = Boo ... ETCH_PEERS ) Fetch modes apply to: ForeignKey fields OneToOneField fields and their reverse accessors Fields deferred with QuerySet.defer() or QuerySet.only() ジェネリックリレーション（汎用リレーション） Django copies the fetch mode of an instance to ... ated objects it fetches, so the mode applies to a whole tree of relationships, not just the top-level model in the initial QuerySet . This copying is also done in related managers, even though fetch modes don't affect such managers' queries. Available ... ... ase. You can customize the behavior of this fetching with a fetch mode , making it more efficient or even blocking it. Use QuerySet.fetch_mode() to set the fetch mode for model instances fetched by a QuerySet : from django.db import models books = Boo ... ETCH_PEERS ) Fetch modes apply to: ForeignKey fields OneToOneField fields and their reverse accessors Fields deferred with QuerySet.defer() or QuerySet.only() ジェネリックリレーション（汎用リレーション） Django copies the fetch mode of an instance to ... ated objects it fetches, so the mode applies to a whole tree of relationships, not just the top-level model in the initial QuerySet . This copying is also done in related managers, even though fetch modes don't affect such managers' queries. Available ... ... ing conditions: One or more views are present which construct a URL based on user input (commonly, a "next" parameter in a querystring indicating where to redirect upon successful completion of an action). One or more modules are known to an attacker ... se will not be cached. MySQL typecasting ¶ The MySQL database is known to "typecast" on certain queries; for example, when querying a table which contains string values, but using a query which filters based on an integer value, MySQL will first silen ... tly coerce the strings to integers and return a result based on that. If a query is performed without first converting values to the appropriate type, this can produce unexpected results, similar to what ... ... ing conditions: One or more views are present which construct a URL based on user input (commonly, a "next" parameter in a querystring indicating where to redirect upon successful completion of an action). One or more modules are known to an attacker ... se will not be cached. MySQL typecasting ¶ The MySQL database is known to "typecast" on certain queries; for example, when querying a table which contains string values, but using a query which filters based on an integer value, MySQL will first silen ... tly coerce the strings to integers and return a result based on that. If a query is performed without first converting values to the appropriate type, this can produce unexpected results, similar to what ... ... patibility notes . Time zone aware aggregation ¶ The support for time zones introduced in Django 1.4 didn't work well with QuerySet.dates() : aggregation was always performed in UTC. This limitation was lifted in Django 1.6. Use QuerySet.datetimes() t ... key value. Previously SELECT was performed to determine if UPDATE or INSERT were needed. The new algorithm needs only one query for updating an existing row while the old algorithm needed two. See Model.save() for more details. In some rare cases the ... ately fail the authentication chain. The HttpOnly flag can be set on the CSRF cookie with CSRF_COOKIE_HTTPONLY . The assertQuerysetEqual() now checks for undefined order and raises ValueError if undefined order is spotted. The order is seen as undefin ... ... patibility notes . Time zone aware aggregation ¶ The support for time zones introduced in Django 1.4 didn't work well with QuerySet.dates() : aggregation was always performed in UTC. This limitation was lifted in Django 1.6. Use QuerySet.datetimes() t ... key value. Previously SELECT was performed to determine if UPDATE or INSERT were needed. The new algorithm needs only one query for updating an existing row while the old algorithm needed two. See Model.save() for more details. In some rare cases the ... ately fail the authentication chain. The HttpOnly flag can be set on the CSRF cookie with CSRF_COOKIE_HTTPONLY . The assertQuerysetEqual() now checks for undefined order and raises ValueError if undefined order is spotted. The order is seen as undefin ... ... database ' {} ' blocked here" . format ( alias )) より完全な例として、クエリロガーは次のようになります。 import time class QueryLogger : def __init__ ( self ): self . queries = [] def __call__ ( self , execute , sql , params , many , context ): curren ... t_query = { "sql" : sql , "params" : params , "many" : many } start = time . monotonic () try : result = execute ( sql , params , ... many , context ) except Exception as e : current_query [ "status" ] = "error" current_query [ "exception" ] = e raise else : current_query [ "status" ] = "ok" return result fina ... ... r backends. Date and time related arithmetic has also been improved on all backends. There is a corresponding form field . Query Expressions, Conditional Expressions, and Database Functions ¶ Query Expressions allow you to create, customize, and compo ... elAdmin . The ModelAdmin.delete_view() displays a summary of objects to be deleted on the deletion confirmation page. The jQuery library embedded in the admin has been upgraded to version 1.11.2. You can now specify AdminSite.site_url in order to disp ... hange the default value. django.contrib.gis ¶ A new GeoJSON serializer is now available. It is now allowed to include a subquery as a geographic lookup argument, for example City.objects.filter(point__within=Country.objects.filter(continent='Africa'). ... 2026年10月08日