This snippet adds support for OSM maps for GeometryField in Admin TabularInlines.
The one possible issue with this snippet is that the OSMGeoInlineForm has to know about the parent ModelAdmin which it does through the code
`model_admin_instance = admin.sites.site._registry[self.parent_model]`
which won't work if you don't use the default model admin to register the model admin. I'll try and come up with a work around and edit the snippet.
Due to the need to mess around with inline style sheets and IE not playing ball with just copying the innerHTML I've settled on using the jQuery.Rule plugin which I've included here as the last version published on the site was incompatible with jQuery 1.4.2 and I found a pathced version online, I also had to modify it due to the Django admin using the compatibility mode of jQuery so there is no global jQuery variable it's django.jQuery instead.
1. Create an osmgeo_inline.py file in your app and copy the top code into it.
2. Create the template file in a directory called admin within a template directory for your app, the template file must be called osmgeo_tabular_inline.html, and copy the middle code into it.
3. Create the jquery rule plugin file in your media or admin-media js directory and copy the bottom code into it. Don't forget to change the OSMGeoInlineForm's class Media's js = ('.....',) to the correct path to the file if need be.
4. In your admin.py you can create inline models using OSMGeoTabularInline just as you would TabularInline.
Examples all based on the following in models.py
from django.contrib.gis.db import models
class MyModel(models.Model):
name = models.CharField(max_length=64)
route = models.LineStringField(srid=settings.WGS_SRID)
class MySubModel(models.Model):
mymodel = models.ForeignKey(MyModel)
name = models.CharField(max_length=64)
location = models.PointField(srid=settings.WGS_SRID)
Example 1 - basic usage (admin.py):
from django.contrib.gis.admin import OSMGeoAdmin
from myapp.osmgeo_inline import OSMGeoTabularInline
from myapp.models import MyModel, MySubModel
class MySubModelInline(OSMGeoTabularInline):
model = MySubModel
class MyModelAdmin(OSMGeoAdmin):
inlines = [MySubModelInline]
admin.site.register(MyModel, MyModelAdmin)
Example 2 - overriding the default map widget params and setting the inline map's centre point to match the main models map centre (admin.py):
from django.contrib.gis.admin import OSMGeoAdmin
from myapp.osmgeo_inline import OSMGeoTabularInline
from myapp.models import MyModel, MySubModel
class MySubModelInline(OSMGeoTabularInline):
model = MySubModel
class MyModelAdmin(OSMGeoAdmin):
inlines = [MySubModelInline]
params = {'map_width: 200, 'map_height': 200]
def get_formset(self, request, obj=None, **kwargs):
centre = None
if obj is not None:
centre = obj.route.centroid.transform(900913, clone=True)
self.params['default_lon'] = centre.coords[0]
self.params['default_lat'] = centre.coords[1]
self.params['default_zoom'] = 12
return super(TrailSubmissionInlineBase, self).get_formset(request, obj, **kwargs)
admin.site.register(MyModel, MyModelAdmin)
I've not looked at StackedInlines because I don't use them but all that would be needed is to add a class OSMGeoStackedInline(StackedInline) that was a copy of OSMGeoTabularInline but with a template based on the StackedInline template - the javascript code in var initMap = function(row) would probably have to be adapted though.
- django
- admin
- geodjango
- map-widget
- tabular-inlines