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|
require "./database"
module Guff
MIGRATIONS = [{
id: "0-null",
sql: %w{},
}, {
id: "1-create-metadata",
sql: [%{
CREATE TABLE metadata (
name TEXT PRIMARY KEY,
value TEXT NOT NULL
)
}],
}, {
id: "2-create-sites",
sql: [%{
CREATE TABLE sites (
-- site id
site_id INTEGER PRIMARY KEY,
-- name of site
name TEXT UNIQUE NOT NULL
CHECK (LENGTH(name) > 0),
-- is this the default site?
is_default BOOLEAN NOT NULL DEFAULT false
)
}, %{
INSERT INTO sites(name, is_default) VALUES ('Default', 1)
}, %{
CREATE TABLE domains (
-- domain
domain TEXT PRIMARY KEY CHECK (
LENGTH(domain) > 0 AND
domain = LOWER(domain)
),
-- site id
site_id INTEGER NOT NULL
REFERENCES sites(site_id)
)
}],
}, {
id: "3-create-posts",
sql: [%{
CREATE TABLE post_states (
state INTEGER PRIMARY KEY,
name TEXT UNIQUE NOT NULL
)
}, %{
INSERT INTO post_states(state, name) VALUES
(0, 'draft'),
(1, 'posted'),
(2, 'deleted')
}, %{
CREATE TABLE posts (
-- unique id
post_id INTEGER PRIMARY KEY,
site_id INTEGER NOT NULL
REFERENCES sites(site_id),
state INTEGER NOT NULL DEFAULT 0
REFERENCES post_states(state),
-- when this post was created
created_at TIMESTAMP WITH TIME ZONE
NOT NULL DEFAULT CURRENT_TIMESTAMP,
-- when this post was posted
-- (that is, the draft status was removed)
posted_at TIMESTAMP WITH TIME ZONE
DEFAULT NULL,
-- title of post
name TEXT NOT NULL
CHECK (LENGTH(name) > 0),
-- slug of post (url fragment)
slug TEXT NOT NULL
CHECK (LENGTH(slug) > 0),
-- raw body (raw text before filters)
raw_body TEXT NOT NULL
CHECK (LENGTH(raw_body) > 0),
-- generated html (after filters)
body TEXT NOT NULL
CHECK (LENGTH(body) > 0)
)
}, %{
CREATE INDEX in_posts_site_id ON posts(site_id)
}, %{
CREATE INDEX in_posts_slug ON posts(slug)
}, %{
CREATE INDEX in_posts_state ON posts(state)
}, %{
CREATE INDEX in_posts_posted_at ON posts(posted_at)
}],
}, {
id: "4-create-tags",
sql: [%{
CREATE TABLE tags (
tag_id INTEGER PRIMARY KEY,
name TEXT UNIQUE NOT NULL
)
}, %{
CREATE INDEX in_tags_name ON tags(name)
}, %{
CREATE TABLE post_tags (
tag_id INTEGER NOT NULL
REFERENCES tags(tag_id),
post_id INTEGER NOT NULL
REFERENCES posts(post_id),
UNIQUE(tag_id, post_id)
)
}, %{
CREATE INDEX in_post_tags_tag_id ON post_tags(tag_id)
}, %{
CREATE INDEX in_post_tags_post_id ON post_tags(post_id)
}],
}]
end
|
