def create_view(self, cls, add_filters, name, label, dimension,
breakdown=None, view_filters={}):
'''\
Create a view. The view will be computed when you call
:meth:`finalize`.
``cls``
A model class (inheriting from :class:`openspending.model.Base`)
``add_filters``
A :term:`mongodb query spec` used as a query to select the
instances of *cls* that will be used for the view.
``name``
A name for the view. This name must be unique for all views
for *cls* in an Open Spending site.
``label``
A label that can be displayed to the user.
``dimensions``
The dimensions that will be used to compute the view
``breakdown``
...
``view_filters``
...
Returns: A :class:`openspending.lib.views.View` object.
'''
log.debug("pre-aggregating view %s on %r where %r",
name, cls, view_filters)
view = View(self.dataset, name, label, dimension,
breakdown, cuts=view_filters)
view.apply_to(cls, add_filters)
view.compute()
Dataset.c.update({'name': self.dataset.name},
{'$set': {'cubes': self.dataset.get('cubes', {})}})
self.dataset = Dataset.by_id(self.dataset.name)
return view
def test_by_name(self):
assert len(self.dataset.data['views']) == 4
default = View.by_name(self.dataset, self.dataset, 'default')
assert default is not None, default
assert default.entity == 'dataset', default.entity
assert default.name == 'default', default.name
assert View.by_name(self.dataset, self.dataset, 'region')
cf = {'taxonomy': 'cofog'}
cfa = View.by_name(self.dataset, cf, 'default', 'cofog1')
assert cfa, cfa
assert cfa.dimension == 'cofog1', cfa.dimension
assert_raises(ValueError, View.by_name, self.dataset, cfa, 'not-there')
def test_by_name(self):
assert len(self.dataset.data['views'])==4
default = View.by_name(self.dataset, self.dataset, 'default')
assert default is not None, default
assert default.entity=='dataset', default.entity
assert default.name=='default', default.name
assert View.by_name(self.dataset, self.dataset, 'region')
cf = {'taxonomy': 'cofog'}
cfa = View.by_name(self.dataset, cf, 'default', 'cofog1')
assert cfa, cfa
assert cfa.dimension=='cofog1', cfa.dimension
h.assert_raises(ValueError, View.by_name, self.dataset,
cfa, 'not-there')
def test_by_name(self):
view = self.get_view("test1", cuts={"foo": "Hello"})
view.apply_to(model.entry, {"region": u"ENGLAND_South West"})
soc = model.entry.find_one({"region": u"ENGLAND_South West"})
loaded = View.by_name(soc, "test1")
h.assert_equal(loaded.label, view.label)
h.assert_equal(loaded.cuts, view.cuts)
h.assert_raises(ValueError, View.by_name, soc, "not-there")
def timeline(self, id):
c.dataset = model.Dataset.by_id(id)
view = View.by_name(c.dataset, "default")
viewstate = ViewState(c.dataset, view, None)
data = []
meta = []
for entry, year_data in viewstate.aggregates:
meta.append({"label": entry.get("label"),
"description": entry.get("description", ""),
"name": entry.get("name"),
"index": len(meta),
"taxonomy": entry.get("taxonomy")})
sorted_year_data = sorted(year_data.items(), key=lambda kv: kv[0])
data.append([{"x": k, "y": v,
"meta": len(meta) - 1} for
k, v in sorted_year_data])
c.data = json.dumps(data)
c.meta = json.dumps(meta)
return render('dataset/timeline.html')
def timeline(self, name):
self._get_dataset(name)
c.dataset = Dataset.by_name(name)
view = View.by_name(c.dataset, "default")
viewstate = ViewState(c.dataset, view, None)
data = []
meta = []
for entry, year_data in viewstate.aggregates:
meta.append({
"label": entry.get("label"),
"description": entry.get("description", ""),
"name": entry.get("name"),
"index": len(meta),
"taxonomy": entry.get("taxonomy")
})
sorted_year_data = sorted(year_data.items(), key=lambda kv: kv[0])
data.append([{
"x": k,
"y": v,
"meta": len(meta) - 1
} for k, v in sorted_year_data])
c.data = json.dumps(data)
c.meta = json.dumps(meta)
return render('dataset/timeline.html')
def get_view(self, name='default', **kwargs):
return View(self.dataset, kwargs)