def sourceURIIncremental(self,layername,fromdate,todate):
'''Endpoint constructor fetching specific layers with incremental date fields'''
if self.conn_str:
valid,urilayer = self.validateConnStr(self.conn_str)
#I don't know why you would attempt to specify dates in the CL and in the URL as well but we might as well attempt to catch diffs
if layername and urilayer!=layername:
raise MalformedConnectionString('Layer specifications in URI differs from selected layer (-l); '+str(layername)+'!='+str(urilayer))
if (fromdate and re.search('from:'+fromdate[:10],valid) is None) or (todate and re.search('to:'+todate[:10],valid) is None):
raise MalformedConnectionString("Date specifications in URI don't match those referred to with -t|-f "+str(todate)+'/'+str(fromdate)+" not in "+valid)
return valid
cql = self._buildCQLStr()
#pql = self._buildPageStr()
vep = "{}-changeset".format(LU.splitLayerName(layername))
typ = "##typeNames={}-changeset".format(layername)
inc = "##viewparams=from:{};to:{}".format(fromdate,todate)
ver = "##version={}".format(self.ver) if self.ver else "##version={}".format(self.WVER)
svc = "##service={}".format(self.svc) if self.svc else "##service=WFS"
req = "##request=GetFeature"
#if omitted the outputformat parameter is null and response is GML3.2.1 but this triggers surfaceMember Invalid errors
fmt = "##outputFormat={}".format(self.fmt if (self.fmt in self.SUPPORTED_OUTPUT_GML_FORMATS) else self.DEFAULT_OUTPUT_GML_FORMAT)
return re.sub('##','&',re.sub('##','?','{u}services;key={k}{x}/wfs{s}{v}{r}{t}{i}{f}{c}'.format(u=self.url,k=self.key,x=vep,s=svc,v=ver,r=req,t=typ,i=inc,f=fmt,c=cql),1))
