34 lines
1.1 KiB
MySQL
34 lines
1.1 KiB
MySQL
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CREATE TABLE election (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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name TEXT NOT NULL,
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tokens INTEGER NOT NULL,
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created_at DATETIME DEFAULT CURRENT_TIMESTAMP
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);
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CREATE TABLE choices (
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text TEXT NOT NULL,
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election_id INTEGER NOT NULL,
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PRIMARY KEY (text, election_id),
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FOREIGN KEY (election_id) REFERENCES election (id)
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);
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CREATE TABLE voters (
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passcode TEXT NOT NULL,
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election_id INTEGER NOT NULL,
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PRIMARY KEY (passcode, election_id),
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FOREIGN KEY (election_id) REFERENCES election (id)
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);
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CREATE TABLE votes (
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voter_passcode TEXT NOT NULL,
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election_id INTEGER NOT NULL,
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choice_text TEXT NOT NULL,
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tokens INTEGER NOT NULL,
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calculated_vote_count GENERATED ALWAYS AS (sqrt(tokens)) VIRTUAL,
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created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
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PRIMARY KEY (voter_passcode, choice_text),
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FOREIGN KEY (voter_passcode, election_id) REFERENCES voters (passcode, election_id),
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FOREIGN KEY (choice_text, election_id) REFERENCES choices (text, election_id)
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);
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PRAGMA foreign_keys = ON; -- run after opening the connection so foreign key constraints are checked
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