add data directory

data/SQL/init.sql

@@ -0,0 +1,72 @@
+PRAGMA foreign_keys==off;
+----
+-- Table structure plugins
+----
+CREATE TABLE 'plugins' (
+    'id'      INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,
+    'libelle' TEXT NOT NULL
+);
+INSERT INTO 'plugins' VALUES (0, 'List');
+INSERT INTO 'plugins' VALUES (1, 'Hierarchy');
+
+----
+-- Table structure for items
+----
+CREATE TABLE 'items' (
+    'id'      INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,
+    'plugin'  INTEGER DEFAULT 1,
+    'code'    TEXT NOT NULL,
+    'libelle' TEXT NOT NULL,
+    CONSTRAINT fk_items
+      FOREIGN KEY('plugin') REFERENCES 'plugins'('id')
+      ON DELETE CASCADE
+);
+
+----
+-- Table structure for links
+----
+CREATE TABLE 'links' (
+    'id'    INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,
+    'link'  INTEGER DEFAULT 0,
+    'item' INTEGER,
+    CONSTRAINT fk_links
+      FOREIGN KEY('item') REFERENCES 'items'('id')
+      ON DELETE CASCADE
+);
+
+----
+-- Table structure for nodes
+----
+CREATE TABLE 'nodes' (
+    'child'   INTEGER, 
+    'parent' INTEGER, 
+    'rank'   INTEGER DEFAULT 0,
+    CONSTRAINT fk_nodes_1
+      FOREIGN KEY('child') REFERENCES 'links'('id')
+      ON DELETE CASCADE,
+    CONSTRAINT fk_nodes_2
+      FOREIGN KEY('parent') REFERENCES 'links'('id')
+      ON DELETE CASCADE
+);
+
+----
+-- View structure for v_items
+----
+CREATE VIEW v_items AS 
+SELECT 
+    items.plugin, items.code, items.libelle ,
+    links.*
+FROM links 
+INNER JOIN items ON items.id = links.item;
+
+----
+-- View structure for v_items_tree
+----
+CREATE VIEW v_items_tree AS
+SELECT
+    nodes.parent, nodes.rank,
+    v_items.*
+FROM v_items
+LEFT JOIN nodes ON nodes.child = v_items.id;
+
+PRAGMA foreign_keys=on;