def save_vector_layer(self, *args, **kwargs):
"""Synchronizer la couche de données vectorielle avec le service OGC via MRA."""
organisation = self.resource.dataset.organisation
ws_name = organisation.slug
ds_name = 'public'
styles_sld = []
if self.pk:
try:
Layer.objects.get(pk=self.pk)
except Layer.DoesNotExist:
pass
else:
# On vérifie si l'organisation du jeu de données a changée,
# auquel cas il est nécessaire de supprimer les objets MRA
# afin de les recréer dans le bon workspace (c-à-d Mapfile).
previous_layer = MRAHandler.get_layer(self.name)
regex = '/workspaces/(?P<ws_name>[a-z0-9_\-]+)/datastores/'
matched = re.search(regex, previous_layer['resource']['href'])
if matched:
previous_ws_name = matched.group('ws_name')
if not ws_name == previous_ws_name:
layer_styles = MRAHandler.get_layer_styles(self.name)
for style in layer_styles:
sld = MRAHandler.get_style(style['name'])
styles_sld.append(sld)
MRAHandler.del_layer(self.name)
MRAHandler.del_featuretype(previous_ws_name, ds_name,
self.name)
MRAHandler.get_or_create_workspace(organisation)
MRAHandler.get_or_create_datastore(ws_name, ds_name)
MRAHandler.get_or_create_featuretype(
ws_name,
ds_name,
self.name,
enabled=True,
title=self.resource.title,
abstract=self.resource.description)
for sld in styles_sld:
MRAHandler.create_or_update_style(self.name, data=sld)
MRAHandler.update_layer_defaultstyle(self.name, self.name)
break # only first is default
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
organisation = self.resource.dataset.organisation
ws_name = organisation.slug
try:
l = MRAHandler.get_layer(self.name)
except MraBaseError:
return
# Récupération des informations de couche vecteur
# ===============================================
if self.type == 'vector':
try:
ft = MRAHandler.get_featuretype(ws_name, 'public', self.name)
except MraBaseError:
return
if not l or not ft:
return
ll = ft['featureType']['latLonBoundingBox']
bbox = [[ll['miny'], ll['minx']], [ll['maxy'], ll['maxx']]]
attributes = [
item['name'] for item in ft['featureType']['attributes']
]
default_style_name = l['defaultStyle']['name']
styles = [{
'name': 'default',
'text': 'Style par défaut',
'url': l['defaultStyle']['href'].replace('json', 'sld'),
'sld': MRAHandler.get_style(l['defaultStyle']['name'])
}]
if l.get('styles'):
for style in l.get('styles')['style']:
styles.append({
'name': style['name'],
'text': style['name'],
'url': style['href'].replace('json', 'sld'),
'sld': MRAHandler.get_style(style['name'])
})
# Récupération des informations de couche raster
# ==============================================
elif self.type == 'raster':
try:
c = MRAHandler.get_coverage(ws_name, self.name, self.name)
except MraBaseError:
return
if not l or not c:
return
ll = c['coverage']['latLonBoundingBox']
bbox = [[ll['miny'], ll['minx']], [ll['maxy'], ll['maxx']]]
attributes = []
default_style_name = None
styles = []
# Puis..
self.mra_info = {
'name': l['name'],
'title': l['title'],
'type': l['type'],
'enabled': l['enabled'],
'abstract': l['abstract'],
'bbox': bbox,
'attributes': attributes,
'styles': {
'default': default_style_name,
'styles': styles
}
}
def get_default_sld(self):
style = MRAHandler.get_layer(self.name)['defaultStyle']
if style:
return MRAHandler.get_style(style['name'])