228 lines
14 KiB
SQL
228 lines
14 KiB
SQL
-- DuckDB SQL Schema Definition for Eurovision 25 Homereview Backend
|
|
-- Generated from schema documentation.
|
|
-- Target Database: DuckDB
|
|
-- Incorporates Sequences for Auto-Incrementing Primary Keys.
|
|
-- Note: Timestamps default to creation time; application logic should handle 'updated_at' updates.
|
|
|
|
-- Drop objects in reverse order of dependency and existence check
|
|
DROP TABLE IF EXISTS Review;
|
|
DROP TABLE IF EXISTS Song;
|
|
DROP TABLE IF EXISTS "User"; -- Quoted because USER is a reserved keyword
|
|
DROP TABLE IF EXISTS Team;
|
|
DROP TABLE IF EXISTS Contest;
|
|
DROP TABLE IF EXISTS CountryCodes;
|
|
DROP VIEW IF EXISTS ReviewSummary;
|
|
DROP VIEW IF EXISTS ReviewSummaryByTeam;
|
|
|
|
DROP SEQUENCE IF EXISTS group_id_seq;
|
|
DROP SEQUENCE IF EXISTS user_id_seq;
|
|
DROP SEQUENCE IF EXISTS song_id_seq;
|
|
DROP SEQUENCE IF EXISTS review_id_seq;
|
|
DROP SEQUENCE IF EXISTS contest_id_seq;
|
|
|
|
-- =============================================================================
|
|
-- Sequences for Primary Keys
|
|
-- =============================================================================
|
|
CREATE SEQUENCE group_id_seq START 1;
|
|
CREATE SEQUENCE user_id_seq START 1;
|
|
CREATE SEQUENCE song_id_seq START 1;
|
|
CREATE SEQUENCE review_id_seq START 1;
|
|
CREATE SEQUENCE contest_id_seq START 1;
|
|
|
|
-- =============================================================================
|
|
-- Table: Contest
|
|
-- Stores information about Eurovision contests by year.
|
|
-- =============================================================================
|
|
CREATE TABLE Contest (
|
|
id INTEGER PRIMARY KEY DEFAULT nextval('contest_id_seq'), -- Use sequence for auto-increment
|
|
year INTEGER DEFAULT EXTRACT(YEAR FROM CURRENT_DATE) NOT NULL, -- The year of the Eurovision contest
|
|
is_active BOOLEAN DEFAULT TRUE NOT NULL, -- Flag indicating if this is the active contest
|
|
finals_date DATE NOT NULL, -- Date of the finals
|
|
created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP, -- Timestamp when the contest was created
|
|
updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP -- Timestamp when the contest was last updated
|
|
);
|
|
|
|
-- Add index for faster lookups by year
|
|
CREATE INDEX idx_contest_year ON Contest (year);
|
|
|
|
-- =============================================================================
|
|
-- Table: Group
|
|
-- Stores information about the different households or groups participating.
|
|
-- =============================================================================
|
|
CREATE TABLE "Team" (
|
|
id INTEGER PRIMARY KEY DEFAULT nextval('group_id_seq'), -- Use sequence for auto-increment
|
|
name VARCHAR UNIQUE NOT NULL, -- The name of the household/group
|
|
created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP, -- Timestamp when the group was created
|
|
updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP -- Timestamp when the group was last updated
|
|
);
|
|
|
|
-- =============================================================================
|
|
-- Table: User
|
|
-- Stores information about individual users (players and admins).
|
|
-- =============================================================================
|
|
CREATE TABLE "User" (
|
|
id INTEGER PRIMARY KEY DEFAULT nextval('user_id_seq'), -- Use sequence for auto-increment
|
|
username VARCHAR UNIQUE NOT NULL, -- The user's login name
|
|
first_name VARCHAR DEFAULT '',
|
|
last_name VARCHAR DEFAULT '',
|
|
hashed_password VARCHAR NOT NULL, -- The securely hashed password
|
|
email VARCHAR UNIQUE, -- User's email address (nullable)
|
|
team_id INTEGER NOT NULL, -- Foreign Key -> Group.id
|
|
avatar_id INTEGER DEFAULT 0 NOT NULL, -- Identifier for the user's avatar
|
|
is_active BOOLEAN DEFAULT TRUE NOT NULL, -- Flag indicating if the user account is active
|
|
is_admin BOOLEAN DEFAULT FALSE NOT NULL, -- Flag indicating if the user has admin privileges
|
|
last_login TIMESTAMP DEFAULT '1970-01-01 00:00:00', -- Timestamp when the user was last logged in. Epoch (1970-01-01) means "never logged in"
|
|
created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP, -- Timestamp when the user was created
|
|
updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP, -- Timestamp when the user was last updated
|
|
|
|
FOREIGN KEY (team_id) REFERENCES "Team"(id) -- Link to the Team table
|
|
);
|
|
|
|
-- =============================================================================
|
|
-- Table: Song
|
|
-- Stores information about each participating song in the contest.
|
|
-- =============================================================================
|
|
CREATE TABLE Song (
|
|
id INTEGER PRIMARY KEY DEFAULT nextval('song_id_seq'), -- Use sequence for auto-increment
|
|
year INTEGER NOT NULL, -- The year of the Eurovision contest
|
|
country VARCHAR NOT NULL, -- The participating country name
|
|
artist VARCHAR NOT NULL, -- The name of the performing artist(s)
|
|
title VARCHAR NOT NULL, -- The title of the song
|
|
running_order INTEGER NOT NULL, -- Official order in the show (nullable)
|
|
lyrics_url VARCHAR, -- URL to the original lyrics (nullable)
|
|
artist_url VARCHAR, -- URL to the artist's page (nullable)
|
|
flag_url VARCHAR, -- URL to the country flag (nullable)
|
|
lyrics_original VARCHAR, -- Original lyrics (nullable)
|
|
lyrics_translation_fi VARCHAR, -- Finnish translation (nullable)
|
|
tags VARCHAR[], -- Comma-separated tags (nullable)
|
|
confidence FLOAT NOT NULL DEFAULT 0.0, -- Confidence level of the translation (nullable)
|
|
language VARCHAR NOT NULL, -- Language of the song (nullable)
|
|
created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP, -- Timestamp when the song entry was created
|
|
updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP -- Timestamp when the song entry was last updated
|
|
);
|
|
|
|
-- Add index for faster lookups by year as specified in documentation
|
|
CREATE INDEX idx_song_year ON Song (year);
|
|
|
|
-- =============================================================================
|
|
-- Table: Review
|
|
-- Stores the scores and comments submitted by a user for a specific song.
|
|
-- =============================================================================
|
|
CREATE TABLE Review (
|
|
id INTEGER PRIMARY KEY DEFAULT nextval('review_id_seq'), -- Use sequence for auto-increment
|
|
user_id INTEGER NOT NULL, -- Foreign Key -> User.id
|
|
song_id INTEGER NOT NULL, -- Foreign Key -> Song.id
|
|
score_song INTEGER NOT NULL, -- Score (1-100) for song quality
|
|
score_show INTEGER NOT NULL, -- Score (1-100) for the stage show
|
|
score_costume INTEGER NOT NULL, -- Score (1-100) for wardrobe/costumes
|
|
text_review VARCHAR, -- Optional textual comments (nullable)
|
|
created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP, -- Timestamp when the review was created
|
|
updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP, -- Timestamp when the review was last modified
|
|
|
|
FOREIGN KEY (user_id) REFERENCES "User"(id), -- Link to the User table
|
|
FOREIGN KEY (song_id) REFERENCES Song(id), -- Link to the Song table
|
|
|
|
-- Ensure scores are within the valid range (1-100)
|
|
CHECK (score_song >= 1 AND score_song <= 100),
|
|
CHECK (score_show >= 1 AND score_show <= 100),
|
|
CHECK (score_costume >= 1 AND score_costume <= 100),
|
|
|
|
-- Ensure each user can only submit one review per song
|
|
UNIQUE (user_id, song_id)
|
|
);
|
|
|
|
CREATE TABLE CountryCodes (
|
|
code VARCHAR PRIMARY KEY,
|
|
name_en VARCHAR NOT NULL,
|
|
name_fi VARCHAR NOT NULL,
|
|
name_sv VARCHAR NOT NULL
|
|
);
|
|
|
|
CREATE VIEW ReviewSummaryGlobal AS
|
|
SELECT
|
|
song_id,
|
|
cc.name_fi AS country_fi,
|
|
cc.name_sv AS country_sv,
|
|
s.artist,
|
|
s.title,
|
|
COUNT(*) AS total_reviews,
|
|
AVG(score_song) AS avg_score_song,
|
|
AVG(score_show) AS avg_score_show,
|
|
AVG(score_costume) AS avg_score_costume,
|
|
AVG((score_song + score_show + score_costume)/3) AS avg_total_score
|
|
FROM Review r
|
|
JOIN Song s ON r.song_id = s.id
|
|
JOIN CountryCodes cc ON s.country = cc.code
|
|
GROUP BY song_id, cc.name_fi, cc.name_sv, s.artist, s.title
|
|
ORDER BY avg_total_score DESC;
|
|
|
|
CREATE VIEW ReviewSummaryByTeam AS
|
|
SELECT
|
|
r.song_id,
|
|
cc.name_fi AS country_fi,
|
|
cc.name_sv AS country_sv,
|
|
s.artist,
|
|
s.title,
|
|
u.team_id,
|
|
COUNT(*) AS total_reviews,
|
|
AVG(r.score_song) AS avg_score_song,
|
|
AVG(r.score_show) AS avg_score_show,
|
|
AVG(r.score_costume) AS avg_score_costume,
|
|
AVG((r.score_song + r.score_show + r.score_costume)/3) AS avg_total_score
|
|
FROM Review r
|
|
JOIN "User" u ON r.user_id = u.id
|
|
JOIN Song s ON r.song_id = s.id
|
|
JOIN CountryCodes cc ON s.country = cc.code
|
|
GROUP BY r.song_id, u.team_id, cc.name_fi, cc.name_sv, s.artist, s.title
|
|
ORDER BY avg_total_score DESC;
|
|
|
|
-- Insert country codes data
|
|
INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('ALB', 'Albania', 'Albania', 'Albanien');
|
|
INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('ARM', 'Armenia', 'Armenia', 'Armenien');
|
|
INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('AUS', 'Australia', 'Australia', 'Australien');
|
|
INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('AUT', 'Austria', 'Itävalta', 'Österrike');
|
|
INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('AZE', 'Azerbaijan', 'Azerbaidžan', 'Azerbajdzjan');
|
|
INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('BEL', 'Belgium', 'Belgia', 'Belgien');
|
|
INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('HRV', 'Croatia', 'Kroatia', 'Kroatien');
|
|
INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('CYP', 'Cyprus', 'Kypros', 'Cypern');
|
|
INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('CZE', 'Czechia', 'Tšekki', 'Tjeckien');
|
|
INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('DNK', 'Denmark', 'Tanska', 'Danmark');
|
|
INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('EST', 'Estonia', 'Viro', 'Estland');
|
|
INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('FIN', 'Finland', 'Suomi', 'Finland');
|
|
INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('FRA', 'France', 'Ranska', 'Frankrike');
|
|
INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('GEO', 'Georgia', 'Georgia', 'Georgien');
|
|
INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('DEU', 'Germany', 'Saksa', 'Tyskland');
|
|
INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('GRC', 'Greece', 'Kreikka', 'Grekland');
|
|
INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('ISL', 'Iceland', 'Islanti', 'Island');
|
|
INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('IRL', 'Ireland', 'Irlanti', 'Irland');
|
|
INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('ISR', 'Israel', 'Israel', 'Israel');
|
|
INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('ITA', 'Italy', 'Italia', 'Italien');
|
|
INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('LVA', 'Latvia', 'Latvia', 'Lettland');
|
|
INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('LTU', 'Lithuania', 'Liettua', 'Litauen');
|
|
INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('LUX', 'Luxembourg', 'Luxemburg', 'Luxemburg');
|
|
INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('MLT', 'Malta', 'Malta', 'Malta');
|
|
INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('MNE', 'Montenegro', 'Montenegro', 'Montenegro');
|
|
INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('NLD', 'Netherlands', 'Alankomaat', 'Nederländerna');
|
|
INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('NOR', 'Norway', 'Norja', 'Norge');
|
|
INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('POL', 'Poland', 'Puola', 'Polen');
|
|
INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('PRT', 'Portugal', 'Portugali', 'Portugal');
|
|
INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('SMR', 'San Marino', 'San Marino', 'San Marino');
|
|
INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('SRB', 'Serbia', 'Serbia', 'Serbien');
|
|
INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('SVN', 'Slovenia', 'Slovenia', 'Slovenien');
|
|
INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('ESP', 'Spain', 'Espanja', 'Spanien');
|
|
INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('SWE', 'Sweden', 'Ruotsi', 'Sverige');
|
|
INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('CHE', 'Switzerland', 'Sveitsi', 'Schweiz');
|
|
INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('UKR', 'Ukraine', 'Ukraina', 'Ukraina');
|
|
INSERT INTO CountryCodes (code, name_en, name_fi, name_sv) VALUES ('GBR', 'United Kingdom', 'Englanti', 'Storbritannien');
|
|
|
|
|
|
-- TODO: Clean this next year. Its now here just to get the show running
|
|
INSERT INTO Contest (year, finals_date) VALUES (2025, '2025-05-16');
|
|
-- =============================================================================
|
|
-- Views (Optional - Not Created Here Based on Documentation Decision)
|
|
-- =============================================================================
|
|
-- The documentation suggests performing result aggregations in the application
|
|
-- layer. No CREATE VIEW statements are included.
|
|
-- =============================================================================
|
|
|
|
-- End of Schema Definition |