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Feature: Tests for iterating over a (multi)geometry
Scenario:
Given the grid
| 1 | 2 | |
| 4 | | 3 |
| | 5 | 6 |
And the OSM data
"""
w20 Thighway=motorway Nn1,n2,n3
w21 Thighway=motorway Nn4,n5,n6
r30 Ttype=route,route=road Mw20@,w21@
r31 Ttype=route,route=road Mw20@
r32 Ttype=something Mw20@
r33 Ttype=route,route=road Mn1@
"""
And the lua style
"""
local routes = osm2pgsql.define_relation_table('osm2pgsql_test_routes', {
{ column = 'geom', type = 'linestring', projection = 4326 },
{ column = 'num_all', type = 'int' },
{ column = 'num_one', type = 'int' }
})
local firsts = osm2pgsql.define_relation_table('osm2pgsql_test_firsts', {
{ column = 'geom', type = 'linestring', projection = 4326 },
})
function osm2pgsql.process_relation(object)
if object.tags.type == 'route' then
local mgeom = object:as_multilinestring()
for sgeom in mgeom:geometries() do
routes:insert({
geom = sgeom,
num_all = #mgeom,
num_one = #sgeom
})
end
firsts:insert({
geom = mgeom:geometry_n(1), -- first geometry only
})
end
end
"""
When running osm2pgsql flex
Then table osm2pgsql_test_routes contains exactly
| relation_id | ST_AsText(geom) | num_all | num_one |
| 30 | 1, 2, 3 | 2 | 1 |
| 30 | 4, 5, 6 | 2 | 1 |
| 31 | 1, 2, 3 | 1 | 1 |
And table osm2pgsql_test_firsts contains exactly
| relation_id | ST_AsText(geom) |
| 30 | 1, 2, 3 |
| 31 | 1, 2, 3 |
| 33 | NULL |
|
