class IntegerField(**options) [source] An integer. Values from -2147483648 to 2147483647 are safe in all databases supported by Django. The default form widget for this field is a NumberInput when localize is False or TextInput otherwise.

This tutorial begins where Tutorial 4 left off. We’ve built a Web-poll application, and we’ll now create some automated tests for it. Introducing automated testing What are automated tests? Tests are simple routines that check the operation of your code. Testing operates at different levels. Some tests might apply to a tiny detail (does a particular model method return values as expected?) while others examine the overall operation of the software (does a sequence of user inputs on the site pro

class QueryDict [source] In an HttpRequest object, the GET and POST attributes are instances of django.http.QueryDict, a dictionary-like class customized to deal with multiple values for the same key. This is necessary because some HTML form elements, notably <select multiple>, pass multiple values for the same key. The QueryDicts at request.POST and request.GET will be immutable when accessed in a normal request/response cycle. To get a mutable version you need to use .copy().

class locmem.Loader Loads templates from a Python dictionary. This is useful for testing. This loader takes a dictionary of templates as its first argument: TEMPLATES = [{ 'BACKEND': 'django.template.backends.django.DjangoTemplates', 'OPTIONS': { 'loaders': [ ('django.template.loaders.locmem.Loader', { 'index.html': 'content here', }), ], }, }] This loader is disabled by default. Django uses the template loaders in order ac

ModelAdmin.date_hierarchy Set date_hierarchy to the name of a DateField or DateTimeField in your model, and the change list page will include a date-based drilldown navigation by that field. Example: date_hierarchy = 'pub_date' This will intelligently populate itself based on available data, e.g. if all the dates are in one month, it’ll show the day-level drill-down only. Note date_hierarchy uses QuerySet.datetimes() internally. Please refer to its documentation for some caveats when time

get_template(template_name, using=None) [source] This function loads the template with the given name and returns a Template object. The exact type of the return value depends on the backend that loaded the template. Each backend has its own Template class. get_template() tries each template engine in order until one succeeds. If the template cannot be found, it raises TemplateDoesNotExist. If the template is found but contains invalid syntax, it raises TemplateSyntaxError. How templates are

class RunPython(code, reverse_code=None, atomic=None, hints=None, elidable=False) [source] Runs custom Python code in a historical context. code (and reverse_code if supplied) should be callable objects that accept two arguments; the first is an instance of django.apps.registry.Apps containing historical models that match the operation’s place in the project history, and the second is an instance of SchemaEditor. The reverse_code argument is called when unapplying migrations. This callable s

class Greatest(*expressions, **extra) [source] New in Django 1.9. Accepts a list of at least two field names or expressions and returns the greatest value. Each argument must be of a similar type, so mixing text and numbers will result in a database error. Usage example: class Blog(models.Model): body = models.TextField() modified = models.DateTimeField(auto_now=True) class Comment(models.Model): body = models.TextField() modified = models.DateTimeField(auto_now=True)

InlineModelAdmin.template The template used to render the inline on the page.

GeoQuerySet.transform(srid=4326, **kwargs) Deprecated since version 1.9: Use the Transform function instead. Availability: PostGIS, Oracle, SpatiaLite The transform method transforms the geometry field of a model to the spatial reference system specified by the srid parameter. If no srid is given, then 4326 (WGS84) is used by default. Note Unlike other GeoQuerySet methods, transform stores its output “in-place”. In other words, no new attribute for the transformed geometry is placed on th