Reference GDAL API

classOGRGeomType(type_input)[source] : This class allows for the representation of an OGR geometry type in any of several ways:

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Reference GIS QuerySet API Reference

This lookup requires a tuple parameter, (geom, pattern); the form of pattern will depend on the spatial backend:

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Reference GIS QuerySet API Reference

Availability: PostGIS, Oracle, MariaDB, MySQL, SpatiaLite, PGRaster (Native) For an overview on performing distance queries, please refer to the distance queries introduction.

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Reference

… Data Geographic Models Importing Spatial Data Spatial Queries Putting your data on the map GeoDjango Installation Overview Requirements Installation Troubleshooting Platform-specific instructions GeoDjango Model API Spatial Field Types Spatial Field Options Geometry Field Options GeoDjango Database API Spatial Backends Creating …

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Reference GeoDjango Tutorial

When doing spatial queries, GeoDjango automatically transforms geometries if they’re in a different coordinate system.

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Reference PostgreSQL specific model fields

classIntegerRangeField(**options) : Stores a range of integers. Based on an IntegerField. Represented by an int4range in the database and a django.db.backends.postgresql.psycopg_any.NumericRange in Python.

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Reference PostgreSQL specific model fields

classBigIntegerRangeField(**options) : Stores a range of large integers. Based on a BigIntegerField. Represented by an int8range in the database and a django.db.backends.postgresql.psycopg_any.NumericRange in Python.

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Reference PostgreSQL specific model fields

classDateRangeField(**options) : Stores a range of dates. Based on a DateField. Represented by a daterange in the database and a django.db.backends.postgresql.psycopg_any.DateRange in Python.

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Reference django-admin and manage.py Available commands

--format FORMAT Specifies the serialization format (e.g., json or xml) for fixtures read from stdin. --exclude EXCLUDE, -e EXCLUDE Excludes loading the fixtures from the given applications and/or models (in the form of app_label or app_label.ModelName).

Reference The Forms API

Returns None if aria-describedby is set in Widget.attrs to preserve the user defined attribute when rendering the form. BoundField.auto_id[source] : The HTML ID attribute for this BoundField. Returns an empty string if Form.auto_id is False.

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Reference Model forms

modelformset_factory(model,form=ModelForm,formfield_callback=None,formset=BaseModelFormSet,extra=1,can_delete=False,can_order=False,max_num=None,fields=None,exclude=None,widgets=None,validate_max=False,localized_fields=None,labels=None,help_texts=None,error_messages=None,min_num=None,validate_min=False,field_classes=None,absolute_max=None,can_delete_extra=True,renderer=None,edit_only=False)[source] : Returns a FormSet class for the given model class.

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Reference Widgets

In the following example, the years attribute is set for a SelectDateWidget: See the Built-in widgets for more information about which widgets are available and which arguments they accept.

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Reference Widgets

In a nutshell, you will need to subclass the widget and either define a “Media” inner class or create a “media” property. These methods involve somewhat advanced Python programming and are described in detail in the Form Assets topic guide.

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Reference Widgets

classSelect[source] : - template_name: 'django/forms/widgets/select.html' - option_template_name: 'django/forms/widgets/select_option.html' - Renders as: <select><option ...>...</select>

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Reference Widgets

classRadioSelect[source] : - template_name: 'django/forms/widgets/radio.html' - option_template_name: 'django/forms/widgets/radio_option.html'

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Reference

There are a number of built-in expressions (documented below) that can be used to help you write queries. Expressions can be combined, or in some cases nested, to form more complex computations.

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Reference Model field reference

As with other fields, you can change the maximum length using the max_length argument. The default form widget for this field is a ClearableFileInput.

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Reference QuerySet API reference

This means that for a large QuerySet a large ‘IN’ clause could be generated, which, depending on the database, might have performance problems of its own when it comes to parsing or executing the SQL query.

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Reference Request and response objects

HttpRequest.body[source] : The raw HTTP request body as a bytestring. This is useful for processing data in different ways than conventional HTML forms: binary images, XML payload etc. For processing conventional form data, use HttpRequest.POST.

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Reference Request and response objects

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.

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