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Implement database migration to the new layout.

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This commit is contained in:
Sebastian Ramacher 2012-04-27 21:56:41 +02:00
parent 0c0a5f266c
commit 7b98e40e23
1 changed files with 15 additions and 2 deletions
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17
database-sqlite.c
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@ -124,6 +124,11 @@ sqlite_db_init(ZathuraSQLDatabase* db, const char* path)
"position_y FLOAT"
");";
static const char SQL_FILEINFO_ALTER[] =
"ALTER TABLE fileinfo ADD COLUMN pages_per_row INTEGER;"
"ALTER TABLE fileinfo ADD COLUMN position_x FLOAT;"
"ALTER TABLE fileinfo ADD COLUMN position_y FLOAT;";
sqlite3* session = NULL;
if (sqlite3_open(path, &session) != SQLITE_OK) {
girara_error("Could not open database: %s\n", path);
@ -142,6 +147,14 @@ sqlite_db_init(ZathuraSQLDatabase* db, const char* path)
return;
}
const char* data_type = NULL;
if (sqlite3_table_column_metadata(session, NULL, "fileinfo", "pages_per_row", &data_type, NULL, NULL, NULL, NULL) != SQLITE_OK) {
girara_debug("old database table layout detected; updating ...");
if (sqlite3_exec(session, SQL_FILEINFO_ALTER, NULL, 0, NULL) != SQLITE_OK) {
girara_warning("failed to update database table layout");
}
}
priv->session = session;
}
@ -286,7 +299,7 @@ sqlite_set_fileinfo(zathura_database_t* db, const char* file,
zathura_sqldatabase_private_t* priv = ZATHURA_SQLDATABASE_GET_PRIVATE(db);
static const char SQL_FILEINFO_SET[] =
"REPLACE INTO fileinfo (file, page, offset, scale, rotation) VALUES (?, ?, ?, ?, ?);";
"REPLACE INTO fileinfo (file, page, offset, scale, rotation, pages_per_row, position_x, position_y) VALUES (?, ?, ?, ?, ?, ?, ?, ?);";
sqlite3_stmt* stmt = prepare_statement(priv->session, SQL_FILEINFO_SET);
if (stmt == NULL) {
@ -323,7 +336,7 @@ sqlite_get_fileinfo(zathura_database_t* db, const char* file,
zathura_sqldatabase_private_t* priv = ZATHURA_SQLDATABASE_GET_PRIVATE(db);
static const char SQL_FILEINFO_GET[] =
"SELECT page, offset, scale, rotation FROM fileinfo WHERE file = ?;";
"SELECT page, offset, scale, rotation, pages_per_row, position_x, position_y FROM fileinfo WHERE file = ?;";
sqlite3_stmt* stmt = prepare_statement(priv->session, SQL_FILEINFO_GET);
if (stmt == NULL) {