---
title: "API Formulir GeoDjango"
version: 6.1
locale: id
source: https://docs.djangoproject.com/id/6.1/ref/contrib/gis/forms-api/
canonical: https://djangodocs.dev/id/6.1/ref/contrib/gis/forms-api/
---
# API Formulir GeoDjango

GeoDjango menyediakan beberapa bidang formulir khusus dan widget untuk secara penglihatan menampilkan dan merubah data geolokal pada peta. Secara awalan, mereka menggunakan peta ditenagai-[OpenLayers](https://openlayers.org/), dengan lapisan WMS dasar disediakan oleh [NASA](https://www.earthdata.nasa.gov/).

## Argumen bidang

Sebagai tambahan pada form field arguments 1 biasa, bidang formulir GeoDjango mengambil argumen pilihan berikut.

### `srid`

#### `Field.srid`

Ini adalah kode SRID dimana nilai bidang harus dirubah. Sebagai contoh, jika widget peta SRID berbeda dari SRID lebih umumnya digunakan oleh aplikasi anda atau basisdata, bidang akan otomatis merubah nilai masukan menjadi SRID itu.

### `geom_type`

#### `Field.geom_type`

You generally shouldn't have to set or change that attribute which should
be set up depending on the field class. It matches the OpenGIS standard
geometry name.

### `max_geom_collections`

#### `Field.max_geom_collections`

> **New in Django 5.2.17**

The maximum number of geometry collections the field accepts before
refusing to parse the input and raising a
[`ValidationError`](/id/6.1/ref/exceptions/#django.core.exceptions.ValidationError). This guards against crashes
in the underlying GEOS library when parsing deeply nested
`GEOMETRYCOLLECTION` input. It defaults to `198`.

The limit is applied differently depending on the input format: for
well-known text (WKT) it bounds the nesting *depth*, while for well-known
binary (WKB and hex-encoded WKB) it bounds the *total* number of geometry
collections (both breadth and depth). As a result, the same value may
accept a wide, shallow collection as WKT but reject it as WKB. For GeoJSON,
the limit is not applied at all, since GDAL parses that input type instead.

Increase this value (or set to `None`) only if you must accept
legitimately deep geometries, since doing so reduces protection against
fatal errors.

## Kelas-kelas bidang formulir

### `GeometryField`

#### `class GeometryField`

### `PointField`

#### `class PointField`

### `LineStringField`

#### `class LineStringField`

### `PolygonField`

#### `class PolygonField`

### `MultiPointField`

#### `class MultiPointField`

### `MultiLineStringField`

#### `class MultiLineStringField`

### `MultiPolygonField`

#### `class MultiPolygonField`

### `GeometryCollectionField`

#### `class GeometryCollectionField`

## Widget formulir

GeoDjango form widgets allow you to display and edit geographic data on a
visual map.
Note that none of the currently available widgets supports 3D geometries, hence
geometry fields will fallback using a `Textarea` widget for such data.

### Atribut widget

Widget GeoDjango adalah berdasarkan-cetakan, jadi atribut-atribut mereka kebanyakan berbeda dari atribut widget Django.

#### `BaseGeometryWidget.base_layer`

> **New in Django 6.0**

A string that specifies the identifier for the default base map layer to be
used by the corresponding JavaScript map widget. It is passed as part of
the widget options when rendering, allowing the `MapWidget` to determine
which map tile provider or base layer to initialize (default is `None`).

#### `BaseGeometryWidget.geom_type`

Jenis geometri OpenGis, umumnya disetel oleh bidang formulir.

#### `BaseGeometryWidget.map_srid`

Kode SRID digunakan oleh peta (awalan adalah 4326).

#### `BaseGeometryWidget.display_raw`

Nilai boolean menentukan jika sebuah masukan textarea menunjukkan perwakilan terserial dari geometri saat ini adalah terlihat, utamanya untuk tujuan mencari kesalahan (awalan adalah `False`).

#### `BaseGeometryWidget.supports_3d`

Menunjukkan jika edisi dukungan widget dari data 3D (awalan adalah `False`).

#### `BaseGeometryWidget.template_name`

Cetakan digunakan untuk membangun widget peta.

Anda dapat melewatkan atribut widget dalam cara sama yang untuk widget Django apapun. Sebagai contoh:

```
from django.contrib.gis import forms

class MyGeoForm(forms.Form):
    point = forms.PointField(widget=forms.OSMWidget(attrs={"display_raw": True}))
```

### Kelas-kelas widget

`BaseGeometryWidget`

#### `class BaseGeometryWidget`

This is an abstract base widget containing the logic needed by subclasses.
You cannot directly use this widget for a geometry field.
Note that the rendering of GeoDjango widgets is based on a base layer name,
identified by the [`base_layer`](#django.contrib.gis.forms.widgets.BaseGeometryWidget.base_layer) class attribute.

`OpenLayersWidget`

#### `class OpenLayersWidget`

This is the default widget used by all GeoDjango form fields. Attributes
are:

#### `base_layer`

> **New in Django 6.0**

`nasaWorldview`

#### `template_name`

`gis/openlayers.html`.

#### `map_srid`

`3857`

`OpenLayersWidget` and [`OSMWidget`](#django.contrib.gis.forms.widgets.OSMWidget) include the `ol.js` and
`ol.css` files hosted on the `cdn.jsdelivr.net` content-delivery
network. These files can be overridden by subclassing the widget and
setting the `js` and `css` properties of the inner `Media` class (see
[Aset sebagai pengertian tetap](/id/6.1/topics/forms/media/#assets-as-a-static-definition)).

> **External assets with CSP**
>
> When [`ContentSecurityPolicyMiddleware`](/id/6.1/ref/middleware/#django.middleware.csp.ContentSecurityPolicyMiddleware) is
> enabled, the default OpenLayers CDN assets (`ol.js` and `ol.css`)
> will be blocked unless explicitly allowed. This can be addressed in one
> of two ways: **serve assets locally** by subclassing the widget and
> provide local copies of the JavaScript and CSS files, or
> **allow the CDN in the CSP policy**.
>
> For example, to allow the default NASA Worldview base layer (replace
> `x.y.z` with the actual version):
>
> ```
> from django.utils.csp import CSP
>
> SECURE_CSP = {
>     "default-src": [CSP.SELF],
>     "script-src": [CSP.SELF, "https://cdn.jsdelivr.net/npm/ol@x.y.z/dist/ol.js"],
>     "style-src": [CSP.SELF, "https://cdn.jsdelivr.net/npm/ol@x.y.z/ol.css"],
>     "img-src": [CSP.SELF, "https://*.earthdata.nasa.gov"],
> }
> ```

`OSMWidget`

#### `class OSMWidget`

This widget specialized [`OpenLayersWidget`](#django.contrib.gis.forms.widgets.OpenLayersWidget) and uses an OpenStreetMap
base layer to display geographic objects on. Attributes are:

#### `base_layer`

> **New in Django 6.0**

`osm`

#### `default_lat`

#### `default_lon`

Nilai awalan tengah garis lintang dan bujur `47` dan `5`, masing-masing, yang bertempat di Perancis Timur.

#### `default_zoom`

Pembesaran peta awalan adalah `12`.

The [`OpenLayersWidget`](#django.contrib.gis.forms.widgets.OpenLayersWidget) note about using external assets also applies
here. See also this [FAQ answer](https://help.openstreetmap.org/questions/10920/how-to-embed-a-map-in-my-https-site) about `https` access to map tiles.

> **OpenStreetMap tiles with CSP**
>
> This widget uses OpenStreetMap tiles instead of NASA Worldview. If
> [Content Security Policy](/id/6.1/topics/security/#security-csp) enabled, both the OpenLayers CDN resources (as
> required by [`OpenLayersWidget`](#django.contrib.gis.forms.widgets.OpenLayersWidget)) and the OpenStreetMap tile
> servers must be allowed:
>
> ```
> from django.utils.csp import CSP
>
> SECURE_CSP = {
>     # other directives
>     "img-src": [CSP.SELF, "https://tile.openstreetmap.org"],
> }
> ```

> **Changed in Django 6.0**
>
> The `OSMWidget` no longer uses a custom template. Consequently, the
> `gis/openlayers-osm.html` template was removed.

### Customizing the base layer used in OpenLayers-based widgets

> **New in Django 6.0**

To customize the base layer displayed in OpenLayers-based geometry widgets,
define a new layer builder in a custom JavaScript file. For example:

*`path-to-file.js`*

```javascript
 MapWidget.layerBuilder.custom_layer_name = function () {
     // Return an OpenLayers layer instance.
     return new ol.layer.Tile({source: new ol.source.<ChosenSource>()});
 };
```

Then, subclass a standard geometry widget and set the `base_layer`:

```
from django.contrib.gis.forms.widgets import OpenLayersWidget

class YourCustomWidget(OpenLayersWidget):
    base_layer = "custom_layer_name"

    class Media:
        js = ["path-to-file.js"]
```