Layer preview

From MapbenderWiki

Allows to store a snapshot of each layer in the database. Three images are being stored: A map preview, the legend and the extent.

Files

javascripts/mod_insertLayerPreviewIntoDb.php
javascripts/mod_saveLayerPreview.php
php/editWMS_Metadata.php
php/mod_layerMetadata.php
php/mod_displayImage.php

SQL

(PostgreSQL only)

CREATE TABLE layer_preview ( fkey_layer_id integer NOT NULL, layer_map_preview bytea, layer_extent_preview bytea, layer_legend_preview bytea ); ALTER TABLE ONLY layer_preview ADD CONSTRAINT layer_preview_fkey_layer_id_key UNIQUE (fkey_layer_id); ALTER TABLE ONLY layer_preview ADD CONSTRAINT fkey_layer_id FOREIGN KEY (fkey_layer_id) REFERENCES layer(layer_id) ON UPDATE CASCADE ON DELETE CASCADE;