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3. Prepare the data to be used within Union VMS

  • Open QGIS
  • Click on the "DB manager" plugin button (Image Added). On the left panel, expand the "PostGIS" node and should see the connection node you have created before (in this case called union-vms). Expand that node and you should see all the schemas that are used within the Union VMS application.
  • To prepare the data you will need to run some SQL scripts. To do that, press the "SQL window" button (Image Added). In the new window paste the following SQL script:


  • Code Block
    languagesql
    -- CREATE COUNTRIES TABLE
CREATE TABLE spatial.countries AS (SELECT a.gid, a.geom AS geom, b.geom AS geom_20, a.cntr_id, c.iso3_code AS code, c.name_engl AS name
FROM spatial.ctr_3m AS a, spatial.ctr_20m AS b, spatial.ctr_metadata AS c
WHERE a.cntr_id = b.cntr_id AND a.cntr_id = c.cntr_id);

ALTER TABLE spatial.countries OWNER TO spatial;

-- ADD NECESSARY COLUMNS FOR UNIONVMS
ALTER TABLE spatial.countries ADD COLUMN enabled character varying(1) NOT NULL default 'Y';
ALTER TABLE spatial.countries ADD COLUMN enabled_on timestamp without time zone;

-- ADD PRIMARY KEY
ALTER TABLE spatial.countries ADD PRIMARY KEY (gid);

-- ADD SEQUENCE
CREATE SEQUENCE spatial.countries_seq
  INCREMENT 1
  MINVALUE 1
  MAXVALUE 9223372036854775807
  START 256
  CACHE 1;
ALTER TABLE spatial.countries_seq OWNER TO spatial;

-- ADD SPATIAL INDEXES
CREATE INDEX spatial_countries_geom_index
  ON spatial.countries
  USING gist
  (geom);

CREATE INDEX spatial_countries_geom_20_index
  ON spatial.countries
  USING gist
  (geom_20);
  
-- DROP OLD TABLES
DROP TABLE spatial.ctr_3m;
DROP TABLE spatial.ctr_20m;
DROP TABLE spatial.ctr_metadata;

-- UPDATE SERVICE LAYER TABLE
INSERT INTO spatial.service_layer(name, layer_desc, provider_format_id, geo_name, srs_code, short_copyright, long_copyright, is_internal, style_geom, style_label, style_label_geom, subtype)
VALUES ('Countries', 'Countries', 2, 'uvms:countries', 4326, '© <b>Countries</b>: EuroGeographics for the administrative boundaries.', '© <b>Countries</b>: EuroGeographics for the administrative boundaries.', 'Y', 'countries', 'countries_label', 'countries_label_geom', 'others');


  • Press the "Execute (F5)" button.