76 lines
3.8 KiB
Python
76 lines
3.8 KiB
Python
from django import http
|
|
from django.db import models
|
|
from django.contrib.databrowse.datastructures import EasyModel
|
|
from django.contrib.databrowse.sites import DatabrowsePlugin
|
|
from django.shortcuts import render_to_response
|
|
from django.utils.text import capfirst
|
|
from django.utils.encoding import smart_str, force_unicode
|
|
from django.views.generic import date_based
|
|
import datetime
|
|
import time
|
|
import urllib
|
|
|
|
class FieldChoicePlugin(DatabrowsePlugin):
|
|
def __init__(self, field_filter=None):
|
|
# If field_filter is given, it should be a callable that takes a
|
|
# Django database Field instance and returns True if that field should
|
|
# be included. If field_filter is None, that all fields will be used.
|
|
self.field_filter = field_filter
|
|
|
|
def field_dict(self, model):
|
|
"""
|
|
Helper function that returns a dictionary of all fields in the given
|
|
model. If self.field_filter is set, it only includes the fields that
|
|
match the filter.
|
|
"""
|
|
if self.field_filter:
|
|
return dict([(f.name, f) for f in model._meta.fields if self.field_filter(f)])
|
|
else:
|
|
return dict([(f.name, f) for f in model._meta.fields if not f.rel and not f.primary_key and not f.unique and not isinstance(f, (models.AutoField, models.TextField))])
|
|
|
|
def model_index_html(self, request, model, site):
|
|
fields = self.field_dict(model)
|
|
if not fields:
|
|
return u''
|
|
return u'<p class="filter"><strong>View by:</strong> %s</p>' % \
|
|
u', '.join(['<a href="fields/%s/">%s</a>' % (f.name, force_unicode(capfirst(f.verbose_name))) for f in fields.values()])
|
|
|
|
def urls(self, plugin_name, easy_instance_field):
|
|
if easy_instance_field.field in self.field_dict(easy_instance_field.model.model).values():
|
|
field_value = smart_str(easy_instance_field.raw_value)
|
|
return [u'%s%s/%s/%s/' % (easy_instance_field.model.url(),
|
|
plugin_name, easy_instance_field.field.name,
|
|
urllib.quote(field_value, safe=''))]
|
|
|
|
def model_view(self, request, model_databrowse, url):
|
|
self.model, self.site = model_databrowse.model, model_databrowse.site
|
|
self.fields = self.field_dict(self.model)
|
|
|
|
# If the model has no fields with choices, there's no point in going
|
|
# further.
|
|
if not self.fields:
|
|
raise http.Http404('The requested model has no fields.')
|
|
|
|
if url is None:
|
|
return self.homepage_view(request)
|
|
url_bits = url.split('/', 1)
|
|
if self.fields.has_key(url_bits[0]):
|
|
return self.field_view(request, self.fields[url_bits[0]], *url_bits[1:])
|
|
|
|
raise http.Http404('The requested page does not exist.')
|
|
|
|
def homepage_view(self, request):
|
|
easy_model = EasyModel(self.site, self.model)
|
|
field_list = self.fields.values()
|
|
field_list.sort(lambda x, y: cmp(x.verbose_name, y.verbose_name))
|
|
return render_to_response('databrowse/fieldchoice_homepage.html', {'root_url': self.site.root_url, 'model': easy_model, 'field_list': field_list})
|
|
|
|
def field_view(self, request, field, value=None):
|
|
easy_model = EasyModel(self.site, self.model)
|
|
easy_field = easy_model.field(field.name)
|
|
if value is not None:
|
|
obj_list = easy_model.objects(**{field.name: value})
|
|
return render_to_response('databrowse/fieldchoice_detail.html', {'root_url': self.site.root_url, 'model': easy_model, 'field': easy_field, 'value': value, 'object_list': obj_list})
|
|
obj_list = [v[field.name] for v in self.model._default_manager.distinct().order_by(field.name).values(field.name)]
|
|
return render_to_response('databrowse/fieldchoice_list.html', {'root_url': self.site.root_url, 'model': easy_model, 'field': easy_field, 'object_list': obj_list})
|