tag unit test

db/development_structure.sql

@@ -24,6 +24,40 @@ CREATE TABLE schema_migrations (
 );
 
 
+--
+-- Name: tags; Type: TABLE; Schema: public; Owner: -; Tablespace: 
+--
+
+CREATE TABLE tags (
+    id integer NOT NULL,
+    name character varying(255) NOT NULL,
+    post_count integer DEFAULT 0 NOT NULL,
+    category integer DEFAULT 0 NOT NULL,
+    related_tags text,
+    created_at timestamp without time zone,
+    updated_at timestamp without time zone
+);
+
+
+--
+-- Name: tags_id_seq; Type: SEQUENCE; Schema: public; Owner: -
+--
+
+CREATE SEQUENCE tags_id_seq
+    START WITH 1
+    INCREMENT BY 1
+    NO MAXVALUE
+    NO MINVALUE
+    CACHE 1;
+
+
+--
+-- Name: tags_id_seq; Type: SEQUENCE OWNED BY; Schema: public; Owner: -
+--
+
+ALTER SEQUENCE tags_id_seq OWNED BY tags.id;
+
+
 --
 -- Name: users; Type: TABLE; Schema: public; Owner: -; Tablespace: 
 --
@@ -72,6 +106,13 @@ CREATE SEQUENCE users_id_seq
 ALTER SEQUENCE users_id_seq OWNED BY users.id;
 
 
+--
+-- Name: id; Type: DEFAULT; Schema: public; Owner: -
+--
+
+ALTER TABLE tags ALTER COLUMN id SET DEFAULT nextval('tags_id_seq'::regclass);
+
+
 --
 -- Name: id; Type: DEFAULT; Schema: public; Owner: -
 --
@@ -79,6 +120,14 @@ ALTER SEQUENCE users_id_seq OWNED BY users.id;
 ALTER TABLE users ALTER COLUMN id SET DEFAULT nextval('users_id_seq'::regclass);
 
 
+--
+-- Name: tags_pkey; Type: CONSTRAINT; Schema: public; Owner: -; Tablespace: 
+--
+
+ALTER TABLE ONLY tags
+    ADD CONSTRAINT tags_pkey PRIMARY KEY (id);
+
+
 --
 -- Name: users_pkey; Type: CONSTRAINT; Schema: public; Owner: -; Tablespace: 
 --
@@ -87,6 +136,13 @@ ALTER TABLE ONLY users
     ADD CONSTRAINT users_pkey PRIMARY KEY (id);
 
 
+--
+-- Name: index_tags_on_name; Type: INDEX; Schema: public; Owner: -; Tablespace: 
+--
+
+CREATE UNIQUE INDEX index_tags_on_name ON tags USING btree (name);
+
+
 --
 -- Name: index_users_on_email; Type: INDEX; Schema: public; Owner: -; Tablespace: 
 --
@@ -112,4 +168,6 @@ CREATE UNIQUE INDEX unique_schema_migrations ON schema_migrations USING btree (v
 -- PostgreSQL database dump complete
 --
 
-INSERT INTO schema_migrations (version) VALUES ('20100204211522');
+INSERT INTO schema_migrations (version) VALUES ('20100204211522');
+
+INSERT INTO schema_migrations (version) VALUES ('20100205162521');

db/migrate/20100205162521_create_tags.rb

@@ -0,0 +1,17 @@
+class CreateTags < ActiveRecord::Migration
+  def self.up
+    create_table :tags do |t|
+      t.column :name, :string, :null => false
+      t.column :post_count, :integer, :null => false, :default => 0
+      t.column :category, :integer, :null => false, :default => 0
+      t.column :related_tags, :text
+      t.timestamps
+    end
+    
+    add_index :tags, :name, :unique => true
+  end
+
+  def self.down
+    drop_table :tags
+  end
+end