adding _obs_getgeometrymetadata function
This commit is contained in:
Andy Eschbacher
parent
0ba66c8f31
commit
ab93ff4ec0
@ -196,29 +196,8 @@ DECLARE
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geom_colname text;
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BEGIN
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EXECUTE
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format(
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$string$
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SELECT geoid_ct.colname As geoid_colname,
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tablename,
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geom_ct.colname As geom_colname
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FROM observatory.obs_column_table As geoid_ct,
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observatory.obs_table As geom_t,
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observatory.obs_column_table As geom_ct,
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observatory.obs_column As geom_c
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WHERE geoid_ct.column_id
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IN (
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SELECT source_id
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FROM observatory.obs_column_to_column
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WHERE reltype = 'geom_ref'
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AND target_id = '%s'
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)
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AND geoid_ct.table_id = geom_t.id and
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geom_t.id = geom_ct.table_id and
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geom_ct.column_id = geom_c.id and
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geom_c.type ILIKE 'geometry'
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$string$, boundary_id
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) INTO geoid_colname, target_table, geom_colname;
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SELECT * INTO geoid_colname, target_table, geom_colname
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FROM cdb_observatory._OBS_GetGeometryMetadata(boundary_id);
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RAISE NOTICE '%', target_table;
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@ -279,37 +258,24 @@ DECLARE
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target_table text;
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BEGIN
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-- TODO: add timespan in search
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EXECUTE
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format(
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$string$
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SELECT geoid_ct.colname As geoid_colname,
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tablename,
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geom_ct.colname As geom_colname
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FROM observatory.obs_column_table As geoid_ct,
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observatory.obs_table As geom_t,
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observatory.obs_column_table As geom_ct,
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observatory.obs_column As geom_c
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WHERE geoid_ct.column_id
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IN (
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SELECT source_id
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FROM observatory.obs_column_to_column
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WHERE reltype = 'geom_ref'
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AND target_id = '%s'
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)
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AND geoid_ct.table_id = geom_t.id and
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geom_t.id = geom_ct.table_id and
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geom_ct.column_id = geom_c.id and
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geom_c.type ILIKE 'geometry'
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$string$, boundary_id
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) INTO geoid_colname, target_table, geom_colname;
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-- if not a point, raise error
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IF ST_GeometryType(geom) NOT IN ('ST_Polygon', 'ST_MultiPolygon')
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-- check inputs
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IF lower(overlap_type) NOT IN ('contains', 'intersects', 'within')
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THEN
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-- recognized overlap type (map to ST_Contains, ST_Intersects, and ST_Within)
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RAISE EXCEPTION 'Overlap type ''%'' is not an accepted type (choose contains, within, intersects)', overlap_type;
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ELSIF ST_GeometryType(geom) NOT IN ('ST_Polygon', 'ST_MultiPolygon')
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THEN
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RAISE EXCEPTION 'Invalid geometry type (%), expecting ''ST_MultiPolygon'' or ''ST_Polygon''', ST_GeometryType(geom);
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END IF;
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-- TODO: add timespan in search
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-- TODO: add overlap info in search
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-- TODO: turn this into a function _OBS_GetGeometryMetadata(geo_ref_name, tablename, and geom_colname)
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-- SELECT geo_ref_name, tablename, geom_colname INTO a, b, c
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-- FROM _OBS_GetGeometryMetadata
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SELECT * INTO geoid_colname, target_table, geom_colname
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FROM cdb_observatory._OBS_GetGeometryMetadata(boundary_id);
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-- if no tables are found, raise notice and return null
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IF target_table IS NULL
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THEN
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@ -411,37 +377,20 @@ DECLARE
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target_table text;
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BEGIN
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-- TODO: add timespan in search
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EXECUTE
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format(
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$string$
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SELECT geoid_ct.colname As geoid_colname,
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tablename,
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geom_ct.colname As geom_colname
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FROM observatory.obs_column_table As geoid_ct,
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observatory.obs_table As geom_t,
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observatory.obs_column_table As geom_ct,
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observatory.obs_column As geom_c
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WHERE geoid_ct.column_id
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IN (
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SELECT source_id
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FROM observatory.obs_column_to_column
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WHERE reltype = 'geom_ref'
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AND target_id = '%s'
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)
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AND geoid_ct.table_id = geom_t.id and
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geom_t.id = geom_ct.table_id and
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geom_ct.column_id = geom_c.id and
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geom_c.type ILIKE 'geometry'
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$string$, boundary_id
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) INTO geoid_colname, target_table, geom_colname;
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-- if not a point, raise error
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IF ST_GeometryType(geom) NOT IN ('ST_Polygon', 'ST_MultiPolygon')
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IF lower(overlap_type) NOT IN ('contains', 'within', 'intersects')
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THEN
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RAISE EXCEPTION 'Overlap type ''%'' is not an accepted type (choose contains, within, intersects)', overlap_type;
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ELSIF ST_GeometryType(geom) NOT IN ('ST_Polygon', 'ST_MultiPolygon')
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THEN
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RAISE EXCEPTION 'Invalid geometry type (%), expecting ''ST_MultiPolygon'' or ''ST_Polygon''', ST_GeometryType(geom);
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END IF;
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SELECT * INTO geoid_colname, target_table, geom_colname
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FROM cdb_observatory._OBS_GetGeometryMetadata(boundary_id);
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RAISE NOTICE 'geoid_colname: %, target_table: %, geom_colname: %',
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geoid_colname, target_table, geom_colname;
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-- if no tables are found, raise notice and return null
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IF target_table IS NULL
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THEN
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@ -494,16 +443,49 @@ CREATE OR REPLACE FUNCTION cdb_observatory.OBS_GetPointsByPointAndRadius(
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time_span text DEFAULT NULL)
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RETURNS TABLE(boundary geometry, geom_refs text)
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AS $$
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DECLARE
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circle_boundary geometry(Geometry, 4326);
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BEGIN
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circle_boundary := ST_Buffer(geom::geography, radius)::geometry;
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RETURN QUERY SELECT *
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FROM cdb_observatory.OBS_GetPointsByBBox(
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circle_boundary,
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ST_Buffer(geom::geography, radius)::geometry,
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boundary_id,
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time_span);
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END;
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$$ LANGUAGE plpgsql;
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-- _OBS_GetGeometryMetadata()
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-- TODO: add timespan in search
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-- TODO: add choice of clipped versus not clipped
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CREATE OR REPLACE FUNCTION cdb_observatory._OBS_GetGeometryMetadata(boundary_id text)
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RETURNS table(geoid_colname text, target_table text, geom_colname text)
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AS $$
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BEGIN
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RETURN QUERY
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EXECUTE
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format($string$
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SELECT geoid_ct.colname As geoid_colname,
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tablename,
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geom_ct.colname As geom_colname
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FROM observatory.obs_column_table As geoid_ct,
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observatory.obs_table As geom_t,
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observatory.obs_column_table As geom_ct,
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observatory.obs_column As geom_c
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WHERE geoid_ct.column_id
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IN (
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SELECT source_id
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FROM observatory.obs_column_to_column
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WHERE reltype = 'geom_ref'
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AND target_id = '%s'
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)
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AND geoid_ct.table_id = geom_t.id and
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geom_t.id = geom_ct.table_id and
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geom_ct.column_id = geom_c.id and
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geom_c.type ILIKE 'geometry'
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-- TODO: filter by clipped vs. not so appropriate tablename are unique
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-- so the limit 1 can be removed
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LIMIT 1
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$string$, boundary_id);
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END;
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$$ LANGUAGE plpgsql;
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