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Add some comments to the code

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Signed-off-by: Sebastian Ramacher <sebastian+dev@ramacher.at>
This commit is contained in:
Sebastian Ramacher 2013-06-21 10:25:31 +02:00
parent 4c795259fe
commit 3171a4f7f6
1 changed files with 20 additions and 13 deletions
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33
database-sqlite.c
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@ -118,7 +118,7 @@ sqlite_db_init(ZathuraSQLDatabase* db, const char* path)
{
zathura_sqldatabase_private_t* priv = ZATHURA_SQLDATABASE_GET_PRIVATE(db);
/* create bookmarks database */
/* create bookmarks table */
static const char SQL_BOOKMARK_INIT[] =
"CREATE TABLE IF NOT EXISTS bookmarks ("
"file TEXT,"
@ -128,6 +128,7 @@ sqlite_db_init(ZathuraSQLDatabase* db, const char* path)
"vadj_ratio FLOAT,"
"PRIMARY KEY(file, id));";
/* create fileinfo table */
static const char SQL_FILEINFO_INIT[] =
"CREATE TABLE IF NOT EXISTS fileinfo ("
"file TEXT PRIMARY KEY,"
@ -141,30 +142,35 @@ 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;";
static const char SQL_FILEINFO_ALTER2[] =
"ALTER TABLE fileinfo ADD COLUMN first_page_column INTEGER;";
static const char SQL_BOOKMARK_ALTER[] =
"ALTER TABLE bookmarks ADD COLUMN hadj_ratio FLOAT;"
"ALTER TABLE bookmarks ADD COLUMN vadj_ratio FLOAT;";
/* create history table */
static const char SQL_HISTORY_INIT[] =
"CREATE TABLE IF NOT EXISTS history ("
"time TIMESTAMP,"
"line TEXT,"
"PRIMARY KEY(line));";
/* update fileinfo table (part 1) */
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;";
/* update fileinfo table (part 2) */
static const char SQL_FILEINFO_ALTER2[] =
"ALTER TABLE fileinfo ADD COLUMN first_page_column INTEGER;";
/* update bookmark table */
static const char SQL_BOOKMARK_ALTER[] =
"ALTER TABLE bookmarks ADD COLUMN hadj_ratio FLOAT;"
"ALTER TABLE bookmarks ADD COLUMN vadj_ratio FLOAT;";
sqlite3* session = NULL;
if (sqlite3_open(path, &session) != SQLITE_OK) {
girara_error("Could not open database: %s\n", path);
return;
}
/* create tables if they don't exist */
if (sqlite3_exec(session, SQL_BOOKMARK_INIT, NULL, 0, NULL) != SQLITE_OK) {
girara_error("Failed to initialize database: %s\n", path);
sqlite3_close(session);
@ -183,6 +189,7 @@ sqlite_db_init(ZathuraSQLDatabase* db, const char* path)
return;
}
/* check existing tables for missing columns */
bool res1, res2, ret1, ret2;
ret1 = check_column(session, "fileinfo", "pages_per_row", &res1);