def to_representation(self, instance):
ret = super(LayerSerializer, self).to_representation(instance)
qgs_maplayer = self.qgs_project.mapLayers()[instance.qgs_layer_id]
group = instance.project.group
# add attributes/fields
ret['fields'] = self.get_attributes(instance)
# add infoformat and infourl
ret['infoformat'] = ''
ret['infourl'] = ''
lidname = instance.qgs_layer_id if instance.project.wms_use_layer_ids else instance.name
# add bbox
if instance.geometrytype != QGIS_LAYER_TYPE_NO_GEOM:
if instance.extent:
ret['bbox'] = instance.extent_rect
else:
# get from QgsMapLayer instance
extent = qgs_maplayer.extent()
ret['bbox'] = {}
ret['bbox']['minx'] = extent.xMinimum()
ret['bbox']['miny'] = extent.yMinimum()
ret['bbox']['maxx'] = extent.xMaximum()
ret['bbox']['maxy'] = extent.yMaximum()
# add capabilities
ret['capabilities'] = get_capabilities4layer(qgs_maplayer)
# add styles
# FIXME: restore in the future for styles map management
#ret['styles'] = self.qgis_projectsettings_wms.layers[lidname]['styles']
ret['source'] = {'type': instance.layer_type}
# add options for wms layer
if instance.layer_type in [
Layer.TYPES.wms, Layer.TYPES.arcgismapserver
]:
if instance.layer_type == Layer.TYPES.wms:
datasourceWMS = QueryDict(instance.datasource)
else:
datasourceWMS = datasourcearcgis2dict(instance.datasource)
if ('username' not in ret['source'] or 'password' not in ret['source']) and 'type=xyz' \
not in instance.datasource:
# rebuild the dict for paramenters repeat n times i.e. 'layers' and 'styles'
if isinstance(datasourceWMS, QueryDict):
for p in datasourceWMS.lists():
if p[0] in ('layers', 'styles'):
ret['source'].update({p[0]: ','.join(p[1])})
else:
ret['source'].update({p[0]: datasourceWMS[p[0]]})
else:
ret['source'].update(datasourceWMS)
ret['source']['external'] = instance.external
# replace crs property if is not none with dict structure
if ret['crs']:
crs = QgsCoordinateReferenceSystem(f'EPSG:{ret["crs"]}')
ret['crs'] = {
'epsg': crs.postgisSrid(),
'proj4': crs.toProj4(),
'geographic': crs.isGeographic(),
'axisinverted': crs.hasAxisInverted()
}
# add metadata
ret['metadata'] = self.get_metadata(instance, qgs_maplayer)
# eval editor_form_structure
if ret['editor_form_structure']:
ret['editor_form_structure'] = eval(instance.editor_form_structure)
# add ows
ret['ows'] = self.get_ows(instance)
return ret
def test_get_capabilities4layer(self):
""" Test same name util func """
layer = self.project310.instance.layer_set.get(
qgs_layer_id='countries_simpl20171228095706310')
self.assertEqual(get_capabilities4layer(None, layer=layer), 3)
def to_representation(self, instance):
ret = super(LayerSerializer, self).to_representation(instance)
qgs_maplayer = self.qgs_project.mapLayers()[instance.qgs_layer_id]
# add attributes/fields
ret['fields'] = self.get_attributes(instance)
# add infoformat and infourl
ret['infoformat'] = ''
ret['infourl'] = ''
#lidname = instance.qgs_layer_id if instance.project.wms_use_layer_ids else instance.name
# add bbox
if instance.geometrytype != QGIS_LAYER_TYPE_NO_GEOM:
if instance.extent:
ret['bbox'] = instance.extent_rect
else:
# get from QgsMapLayer instance
extent = qgs_maplayer.extent()
ret['bbox'] = {}
ret['bbox']['minx'] = extent.xMinimum()
ret['bbox']['miny'] = extent.yMinimum()
ret['bbox']['maxx'] = extent.xMaximum()
ret['bbox']['maxy'] = extent.yMaximum()
# add capabilities
ret['capabilities'] = get_capabilities4layer(qgs_maplayer)
# add styles
# FIXME: restore in the future for styles map management
#ret['styles'] = self.qgis_projectsettings_wms.layers[lidname]['styles']
ret['source'] = {'type': instance.layer_type}
# add options for wms layer
if instance.layer_type in [
Layer.TYPES.wms, Layer.TYPES.arcgismapserver
]:
if instance.layer_type == Layer.TYPES.wms:
datasource_wms = QueryDict(instance.datasource)
else:
datasource_wms = datasourcearcgis2dict(instance.datasource)
if ('username' not in ret['source'] or 'password' not in ret['source']) and 'type=xyz' \
not in instance.datasource:
# rebuild the dict for paramenters repeat n times i.e. 'layers' and 'styles'
if isinstance(datasource_wms, QueryDict):
for p in datasource_wms.lists():
if p[0] in ('layers', 'styles'):
ret['source'].update({p[0]: ','.join(p[1])})
else:
ret['source'].update({p[0]: datasource_wms[p[0]]})
else:
ret['source'].update(datasource_wms)
ret['source']['external'] = instance.external
if instance.external and instance.layer_type == Layer.TYPES.wms:
try:
wms = WebMapService(ret['source']['url'], version='1.3.0')
format_options = wms.getOperationByName(
'GetFeatureInfo').formatOptions
if format_options:
# Filter format by supported by G3W-CLIENT
formats = list(
set(format_options).intersection(
set(settings.EXTERNAL_WMS_INFOFORMATS_SUPPORTED
)))
if formats:
ret['infoformat'] = formats[0]
ret['infoformats'] = formats
except Exception as e:
logger.debug(
f'WMS layer GetFeatureInfo formats available: {e}')
# replace crs property if is not none with dict structure
if ret['crs']:
crs = QgsCoordinateReferenceSystem(f'EPSG:{ret["crs"]}')
# Patch for Proj4 > 4.9.3 version
if ret["crs"] == 3003:
proj4 = "+proj=tmerc +lat_0=0 +lon_0=9 +k=0.9996 +x_0=1500000 +y_0=0 +ellps=intl " \
"+towgs84=-104.1,-49.1,-9.9,0.971,-2.917,0.714,-11.68 +units=m +no_defs"
else:
proj4 = crs.toProj4()
ret['crs'] = {
'epsg': crs.postgisSrid(),
'proj4': proj4,
'geographic': crs.isGeographic(),
'axisinverted': crs.hasAxisInverted()
}
# add metadata
ret['metadata'] = self.get_metadata(instance, qgs_maplayer)
# eval editor_form_structure
if ret['editor_form_structure']:
ret['editor_form_structure'] = eval(instance.editor_form_structure)
# add ows
ret['ows'] = self.get_ows(instance)
# For temporal properties
if instance.temporal_properties:
ret['qtimeseries'] = json.loads(instance.temporal_properties)
if ret['qtimeseries'] and ret['qtimeseries'][
'mode'] == 'FeatureDateTimeInstantFromField':
# Add start_date end end_date:
findex = qgs_maplayer.dataProvider().fieldNameIndex(
ret['qtimeseries']['field'])
ret['qtimeseries']['start_date'] = qgs_maplayer.minimumValue(
findex)
ret['qtimeseries']['end_date'] = qgs_maplayer.maximumValue(
findex)
if isinstance(ret['qtimeseries']['start_date'],
QDate) or isinstance(
ret['qtimeseries']['start_date'], QDateTime):
if not hasattr(QDate, 'isoformat'):
QDate.isoformat = lambda d: d.toString(Qt.ISODate)
if not hasattr(QDateTime, 'isoformat'):
QDateTime.isoformat = lambda d: d.toString(
Qt.ISODateWithMs)
ret['qtimeseries']['start_date'] = ret['qtimeseries'][
'start_date'].isoformat()
ret['qtimeseries']['end_date'] = ret['qtimeseries'][
'end_date'].isoformat()
return ret