New upstream version 0.30.1upstream/0.30.1

1 files changed, 169 insertions, 0 deletions

diff --git a/src/db/FaceTable.vala b/src/db/FaceTable.vala
new file mode 100644
index 0000000..a6e0bad
--- /dev/null
+++ b/src/db/FaceTable.vala
@@ -0,0 +1,169 @@
+/* Copyright 2018 Software Freedom Conservancy Inc.
+ *
+ * This software is licensed under the GNU Lesser General Public License
+ * (version 2.1 or later).  See the COPYING file in this distribution.
+ */
+
+#if ENABLE_FACES
+public struct FaceID {
+    public const int64 INVALID = -1;
+
+    public int64 id;
+    
+    public FaceID(int64 id = INVALID) {
+        this.id = id;
+    }
+    
+    public bool is_invalid() {
+        return (id == INVALID);
+    }
+    
+    public bool is_valid() {
+        return (id != INVALID);
+    }
+}
+
+public class FaceRow {
+    public FaceID face_id;
+    public string name;
+    public time_t time_created;
+}
+
+public class FaceTable : DatabaseTable {
+    private static FaceTable instance = null;
+    
+    private FaceTable() {
+        set_table_name("FaceTable");
+        
+        Sqlite.Statement stmt;
+        int res = db.prepare_v2("CREATE TABLE IF NOT EXISTS "
+            + "FaceTable "
+            + "("
+            + "id INTEGER NOT NULL PRIMARY KEY, "
+            + "name TEXT NOT NULL, "
+            + "time_created TIMESTAMP"
+            + ")", -1, out stmt);
+        assert(res == Sqlite.OK);
+        
+        res = stmt.step();
+        if (res != Sqlite.DONE)
+            fatal("create FaceTable", res);
+    }
+    
+    public static FaceTable get_instance() {
+        if (instance == null)
+            instance = new FaceTable();
+        
+        return instance;
+    }
+    
+    public FaceRow add(string name) throws DatabaseError {
+        Sqlite.Statement stmt;
+        int res = db.prepare_v2("INSERT INTO FaceTable (name, time_created) VALUES (?, ?)", -1,
+            out stmt);
+        assert(res == Sqlite.OK);
+        
+        time_t time_created = (time_t) now_sec();
+        
+        res = stmt.bind_text(1, name);
+        assert(res == Sqlite.OK);
+        res = stmt.bind_int64(2, time_created);
+        assert(res == Sqlite.OK);
+        
+        res = stmt.step();
+        if (res != Sqlite.DONE)
+            throw_error("FaceTable.add", res);
+        
+        FaceRow row = new FaceRow();
+        row.face_id = FaceID(db.last_insert_rowid());
+        row.name = name;
+        row.time_created = time_created;
+        
+        return row;
+    }
+    
+    public FaceID create_from_row(FaceRow row) throws DatabaseError {
+        Sqlite.Statement stmt;
+        int res = db.prepare_v2("INSERT INTO FaceTable (name, time_created) VALUES (?, ?)",
+            -1, out stmt);
+        assert(res == Sqlite.OK);
+        
+        res = stmt.bind_text(1, row.name);
+        assert(res == Sqlite.OK);
+        res = stmt.bind_int64(2, row.time_created);
+        assert(res == Sqlite.OK);
+        
+        res = stmt.step();
+        if (res != Sqlite.DONE)
+            throw_error("FaceTable.create_from_row", res);
+        
+        return FaceID(db.last_insert_rowid());
+    }
+    
+    public void remove(FaceID face_id) throws DatabaseError {
+        delete_by_id(face_id.id);
+    }
+    
+    public string? get_name(FaceID face_id) throws DatabaseError {
+        Sqlite.Statement stmt;
+        if (!select_by_id(face_id.id, "name", out stmt))
+            return null;
+        
+        return stmt.column_text(0);
+    }
+    
+    public FaceRow? get_row(FaceID face_id) throws DatabaseError {
+        Sqlite.Statement stmt;
+        int res = db.prepare_v2("SELECT name, time_created FROM FaceTable WHERE id=?",
+            -1, out stmt);
+        assert(res == Sqlite.OK);
+        
+        res = stmt.bind_int64(1, face_id.id);
+        assert(res == Sqlite.OK);
+        
+        res = stmt.step();
+        if (res == Sqlite.DONE)
+            return null;
+        else if (res != Sqlite.ROW)
+            throw_error("FaceTable.get_row", res);
+        
+        FaceRow row = new FaceRow();
+        row.face_id = face_id;
+        row.name = stmt.column_text(0);
+        row.time_created = (time_t) stmt.column_int64(1);
+        
+        return row;
+    }
+    
+    public Gee.List<FaceRow?> get_all_rows() throws DatabaseError {
+        Sqlite.Statement stmt;
+        int res = db.prepare_v2("SELECT id, name, time_created FROM FaceTable", -1,
+            out stmt);
+        assert(res == Sqlite.OK);
+        
+        Gee.List<FaceRow?> rows = new Gee.ArrayList<FaceRow?>();
+        
+        for (;;) {
+            res = stmt.step();
+            if (res == Sqlite.DONE)
+                break;
+            else if (res != Sqlite.ROW)
+                throw_error("FaceTable.get_all_rows", res);
+            
+            // res == Sqlite.ROW
+            FaceRow row = new FaceRow();
+            row.face_id = FaceID(stmt.column_int64(0));
+            row.name = stmt.column_text(1);
+            row.time_created = (time_t) stmt.column_int64(2);
+            
+            rows.add(row);
+        }
+        
+        return rows;
+    }
+    
+    public void rename(FaceID face_id, string new_name) throws DatabaseError {
+        update_text_by_id_2(face_id.id, "name", new_name);
+    }
+}
+#endif