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Fix ST_ASMVT() signature for current PostGIS

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Yuri Astrakhan 2019-03-19 00:46:33 -04:00
parent 66d17625d8
commit c916c911ab
1 changed files with 2 additions and 2 deletions
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4
server.py
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@ -29,7 +29,7 @@ def GeneratePrepared(layers):
layer_query = layer['Datasource']['table'].lstrip().rstrip() # Remove lead and trailing whitespace 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" layer_query = layer_query[1:len(layer_query)-6] # Remove enough characters to remove first and last () and "AS t"
layer_query = layer_query.replace("geometry", "ST_AsMVTGeom(geometry,!bbox!,4096,0,true) AS mvtgeometry") 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 ST_AsMVTGeom(geometry, !bbox!,4096,0,true) IS NOT NULL) AS tile" base_query = "SELECT ST_ASMVT(tile, '"+layer['id']+"', 4096, 'mvtgeometry') FROM ("+layer_query+" WHERE ST_AsMVTGeom(geometry, !bbox!,4096,0,true) IS NOT NULL) AS tile"
queries.append(base_query.replace("!bbox!","$1").replace("!scale_denominator!","$2").replace("!pixel_width!","$3").replace("!pixel_height!","$4")) 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) + ";" prepared = prepared + " UNION ALL ".join(queries) + ";"
print(prepared) print(prepared)
@ -80,7 +80,7 @@ def get_mvt(zoom,x,y):
layers = filter(None,list(itertools.chain.from_iterable(response))) layers = filter(None,list(itertools.chain.from_iterable(response)))
final_tile = b'' final_tile = b''
for layer in layers: for layer in layers:
final_tile = final_tile + io.BytesIO(layer).getvalue() final_tile = final_tile + io.BytesIO(layer).getvalue()
return final_tile return final_tile
class GetTile(tornado.web.RequestHandler): class GetTile(tornado.web.RequestHandler):