1-- This config example file is released into the Public Domain.
2
3-- This example shows how you can use JSON and JSONB columns in your database.
4
5local places = osm2pgsql.define_node_table('places', {
6    { column = 'tags', type = 'jsonb' },
7    { column = 'geom', type = 'point' },
8})
9
10local function starts_with(str, start)
11   return str:sub(1, #start) == start
12end
13
14function osm2pgsql.process_node(object)
15    if not object.tags.place then
16        return
17    end
18
19    -- Put all name:* tags in their own substructure
20    local names = {}
21    local has_names = false
22    for k, v in pairs(object.tags) do
23        if k == 'name' then
24            names[''] = v
25            object.tags.name = nil
26            has_names = true
27        elseif starts_with(k, "name:") then
28            -- extract language
29            local lang = k:sub(6, -1)
30            names[lang] = v
31            object.tags[k] = nil
32            has_names = true
33        end
34    end
35
36    if has_names then
37        object.tags.names = names
38    end
39
40    -- The population should be stored as number, not as a string
41    if object.tags.population then
42        object.tags.population = tonumber(object.tags.population)
43    end
44
45    places:add_row({
46        tags = object.tags
47    })
48end
49
50