skylarmt/postserve
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Merged branch master into dev

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stirringhalo 2017-05-08 21:17:21 -04:00
commit 75d0e1b416
1 changed files with 7 additions and 1 deletions
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server.py
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@ -26,8 +26,14 @@ def GeneratePrepared(layers):
queries = []
prepared = "PREPARE gettile(geometry, numeric, numeric, numeric) AS "
for layer in layers['Layer']:
queries.append("SELECT ST_AsMVT('"+layer['id']+"',$1, 4096, 100, true, '"+layer['Datasource']['geometry_field']+"', t) FROM "+layer['Datasource']['table'].replace("!bbox!","$1").replace("!scale_denominator!","$2").replace("!pixel_width!","$3").replace("!pixel_height!","$4"))
layer_query = layer['Datasource']['table'].lstrip().rstrip() # Remove lead and trailing whitespace
layer_query = layer_query[1:len(layer_query)-6] # Remove enough characters to remove first and last () and "AS t"
# base_query = "SELECT ST_AsMVT('"+layer['id']+"', 4096, 'geom', tile) FROM (SELECT ST_AsMVTGeom(select geometry from layer_"+layer['id']+"($1,z($2)) as , !bbox!, 4096, 0, true) AS geom) AS tile"
layer_query = layer_query.replace("geometry", "ST_AsMVTGeom(geometry,!bbox!,4096,0,true) AS mvtgeometry")
base_query = "SELECT ST_ASMVT('"+layer['id']+"', 4096, 'mvtgeometry', tile) FROM ("+layer_query+" WHERE geometry IS NOT NULL) AS tile"
queries.append(base_query.replace("!bbox!","$1").replace("!scale_denominator!","$2").replace("!pixel_width!","$3").replace("!pixel_height!","$4"))
prepared = prepared + " UNION ALL ".join(queries) + ";"
print(prepared)
return(prepared)
layers = GetTM2Source("/mapping/data.yml")