feat(blog/schema.sql) update

backend/server/src/modules/blog/schema.sql

@@ -12,30 +12,54 @@ CREATE TABLE categories
     description TEXT DEFAULT ''
 );
 
+CREATE TABLE post_status
+(
+    id   SERIAL PRIMARY KEY,
+    name VARCHAR(20) UNIQUE NOT NULL
+);
+
+INSERT INTO post_status (name)
+VALUES ('draft'),
+       ('published'),
+       ('planned'),
+       ('hidden');
+
 CREATE TABLE posts
 (
-    id             UUID UNIQUE                       NOT NULL,
+    id           UUID PRIMARY KEY,
     identifier   VARCHAR(100) UNIQUE                           NOT NULL,
     title        VARCHAR(255)                                  NOT NULL,
     subtitle     VARCHAR(255)                                  NOT NULL,
-    published_date DATE                              NOT NULL,
-    last_update    DATE,
+    date_created DATE                                          NOT NULL,
+    date_updated DATE,
+    status       INTEGER REFERENCES post_status (id) DEFAULT 1 NOT NULL,
     content      TEXT                                          NOT NULL,
-
-    category       SERIAL REFERENCES categories (id) NOT NULL
+    category     INTEGER REFERENCES categories (id)            NOT NULL
 );
 
 CREATE TABLE post_tag
 (
-    post UUID REFERENCES posts (id),
-    tag  SERIAL REFERENCES tags (id)
+    post UUID REFERENCES posts (id) ON DELETE CASCADE,
+    tag  INTEGER REFERENCES tags (id) ON DELETE CASCADE,
+
+    CONSTRAINT post_tag_pk PRIMARY KEY (post, tag)
 );
 
 CREATE TABLE metadata
 (
-    pid        UUID REFERENCES posts (id) NOT NULL,
+    pid        UUID REFERENCES posts (id) ON DELETE CASCADE NOT NULL,
     meta_key   VARCHAR(50)                                  NOT NULL,
     meta_value TEXT                                         NOT NULL,
 
-    CONSTRAINT meta_pk PRIMARY KEY (pid, meta_key)
+    CONSTRAINT metadata_pk PRIMARY KEY (pid, meta_key)
 );
+
+-- index
+CREATE INDEX idx_tags_name ON tags (name);
+CREATE INDEX idx_categories_name ON categories (name);
+CREATE INDEX idx_posts_identifier ON posts (identifier);
+CREATE INDEX idx_posts_status ON posts (status);
+CREATE INDEX idx_posts_category ON posts (category);
+CREATE INDEX idx_post_tag_post ON post_tag (post);
+CREATE INDEX idx_post_tag_tag ON post_tag (tag);
+CREATE INDEX idx_metadata_pid ON metadata (pid);