diff options
Diffstat (limited to 'qlite/src/table.vala')
-rw-r--r-- | qlite/src/table.vala | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/qlite/src/table.vala b/qlite/src/table.vala index 00b4ef00..8725c4c9 100644 --- a/qlite/src/table.vala +++ b/qlite/src/table.vala @@ -8,6 +8,8 @@ public class Table { protected Column[]? columns; private string constraints = ""; private string[] post_statements = {}; + private string[] create_statements = {}; + internal Column[]? fts_columns; public Table(Database db, string name) { this.db = db; @@ -19,6 +21,33 @@ public class Table { this.constraints = constraints; } + public void fts(Column[] columns) { + if (fts_columns != null) error("Only one FTS index may be used per table."); + fts_columns = columns; + string cs = ""; + string cnames = ""; + string cnews = ""; + foreach (Column c in columns) { + cs += @", $c"; + cnames += @", $(c.name)"; + cnews += @", new.$(c.name)"; + } + add_create_statement(@"CREATE VIRTUAL TABLE IF NOT EXISTS _fts_$name USING fts4(tokenize=unicode61, content=\"$name\"$cs)"); + add_post_statement(@"CREATE TRIGGER IF NOT EXISTS _fts_bu_$(name) BEFORE UPDATE ON $name BEGIN DELETE FROM _fts_$name WHERE docid=old.rowid; END"); + add_post_statement(@"CREATE TRIGGER IF NOT EXISTS _fts_bd_$(name) BEFORE DELETE ON $name BEGIN DELETE FROM _fts_$name WHERE docid=old.rowid; END"); + add_post_statement(@"CREATE TRIGGER IF NOT EXISTS _fts_au_$(name) AFTER UPDATE ON $name BEGIN INSERT INTO _fts_$name(docid$cnames) VALUES(new.rowid$cnews); END"); + add_post_statement(@"CREATE TRIGGER IF NOT EXISTS _fts_ai_$(name) AFTER INSERT ON $name BEGIN INSERT INTO _fts_$name(docid$cnames) VALUES(new.rowid$cnews); END"); + } + + public void fts_rebuild() { + if (fts_columns == null) error("FTS not available on this table."); + try { + db.exec(@"INSERT INTO _fts_$name(_fts_$name) VALUES('rebuild');"); + } catch (Error e) { + error("Qlite Error: Rebuilding FTS index"); + } + } + public void unique(Column[] columns, string? on_conflict = null) { constraints += ", UNIQUE ("; bool first = true; @@ -37,6 +66,10 @@ public class Table { post_statements += stmt; } + public void add_create_statement(string stmt) { + create_statements += stmt; + } + public void index(string index_name, Column[] columns, bool unique = false) { string stmt = @"CREATE $(unique ? "UNIQUE" : "") INDEX IF NOT EXISTS $index_name ON $name ("; bool first = true; @@ -58,6 +91,15 @@ public class Table { return db.select(columns).from(this); } + private MatchQueryBuilder match_query() { + ensure_init(); + return db.match_query(this); + } + + public MatchQueryBuilder match(Column<string> column, string query) { + return match_query().match(column, query); + } + public InsertBuilder insert() { ensure_init(); return db.insert().into(this); @@ -107,6 +149,13 @@ public class Table { } catch (Error e) { error("Qlite Error: Create table at version"); } + foreach (string stmt in create_statements) { + try { + db.exec(stmt); + } catch (Error e) { + error("Qlite Error: Create table at version"); + } + } } public void add_columns_for_version(long old_version, long new_version) { |