39 lines
1.1 KiB
SQL
39 lines
1.1 KiB
SQL
BEGIN TRANSACTION;
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CREATE TABLE source_files (
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id INTEGER PRIMARY KEY,
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filename TEXT UNIQUE NOT NULL,
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size INTEGER NOT NULL,
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hash TEXT,
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last_change INTEGER NOT NULL DEFAULT (strftime('%s','now')),
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last_seen INTEGER NOT NULL DEFAULT (strftime('%s','now'))
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);
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CREATE TABLE destinations (
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id INTEGER PRIMARY KEY,
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name TEXT UNIQUE NOT NULL
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);
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CREATE TABLE destination_files (
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id INTEGER PRIMARY KEY,
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filename TEXT,
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last_change INTEGER NOT NULL DEFAULT (strftime('%s','now')),
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source_file_id INTEGER,
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destination_id INTEGER,
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FOREIGN KEY (source_file_id) REFERENCES source_files(id),
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FOREIGN KEY (destination_id) REFERENCES destinations(id)
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);
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CREATE INDEX sourcefiles_by_name ON source_files (filename,id);
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CREATE TRIGGER create_destinations AFTER INSERT ON source_files
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BEGIN
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INSERT INTO destination_files (source_file_id,destination_id)
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SELECT source_files.id,destinations.id FROM source_files
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INNER JOIN destinations
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WHERE source_files.id=new.id;
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END;
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CREATE TRIGGER delete_destinations_files AFTER DELETE ON source_files
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BEGIN
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UPDATE destination_files SET source_file_id=NULL WHERE source_file_id=old.id;
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END;
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COMMIT;
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