mirror of
https://github.com/alliedmodders/amxmodx.git
synced 2024-10-17 07:47:01 +03:00
146 lines
3.9 KiB
PHP
Executable File
146 lines
3.9 KiB
PHP
Executable File
/* SQL Database API
|
|
* By the AMX Mod X Development Team
|
|
* Notes - Read the comments! Make sure your plugins use
|
|
* nice ANSI SQL and don't use database column names like "key"
|
|
* otherwise this API will be a nightmare
|
|
* Never do error checking with the not operator! This is bad:
|
|
* if (!dbi_query())
|
|
* You should do:
|
|
* ret = dbi_query()
|
|
* if (ret < 0)
|
|
* This is because DBI functions can and will return negative numbers
|
|
* Negative numbers evaluate to "true" in AMX.
|
|
*/
|
|
|
|
#if defined _dbi_included
|
|
#endinput
|
|
#endif
|
|
#define _dbi_included
|
|
|
|
// You can't include SQLX first!
|
|
// there's really no reason to anyway.
|
|
#assert !defined _sqlx_included
|
|
|
|
#if AMXX_VERSION_NUM >= 175
|
|
#pragma reqclass dbi
|
|
#else
|
|
#pragma library dbi
|
|
#endif
|
|
|
|
enum Sql
|
|
{
|
|
SQL_FAILED=0,
|
|
SQL_OK
|
|
};
|
|
|
|
enum Result
|
|
{
|
|
RESULT_FAILED=-1,
|
|
RESULT_NONE,
|
|
RESULT_OK
|
|
};
|
|
|
|
/* This will return a number equal to or below 0 on failure.
|
|
* If it does fail, the error will be mirrored in dbi_error()
|
|
* The return value will otherwise be a resource handle, not an
|
|
* OK code or cell pointer.
|
|
*/
|
|
native Sql:dbi_connect(_host[], _user[], _pass[], _dbname[], _error[]="", _maxlength=0);
|
|
|
|
/* This will do a simple query execution on the SQL server.
|
|
* If it fails, it will return a number BELOW ZERO (0)
|
|
* If zero, it succeeded with NO RETURN RESULT.
|
|
* If greater than zero, make sure to call dbi_free_result() on it!
|
|
* The return is a handle to the result set
|
|
*/
|
|
native Result:dbi_query(Sql:_sql, _query[], any:...);
|
|
|
|
/* Has the same usage as dbi_query, but this native returns by
|
|
* reference the number of rows affected in the query. If the
|
|
* query fails rows will be equal to -1.
|
|
*/
|
|
native Result:dbi_query2(Sql:_sql, &rows, _query[], any:...);
|
|
|
|
/* Returns 0 on failure or End of Results.
|
|
* Advances result pointer by one row.
|
|
*/
|
|
native dbi_nextrow(Result:_result);
|
|
|
|
/* Gets a field by number. Returns 0 on failure.
|
|
* Although internally fields always start from 0,
|
|
* This function takes fieldnum starting from 1.
|
|
* No extra params: returns int
|
|
* One extra param: returns Float: byref
|
|
* Two extra param: Stores string with length
|
|
*/
|
|
native dbi_field(Result:_result, _fieldnum, {Float,_}:... );
|
|
|
|
/* Gets a field by name. Returns 0 on failure.
|
|
* One extra param: returns Float: byref
|
|
* Two extra param: Stores string with length
|
|
*/
|
|
native dbi_result(Result:_result, _field[], {Float,_}:... );
|
|
|
|
/* Returns the number of rows returned from a query
|
|
*/
|
|
native dbi_num_rows(Result:_result);
|
|
|
|
/* Frees memory used by a result handle. Do this or get memory leaks.
|
|
*/
|
|
native dbi_free_result(&Result:result);
|
|
|
|
/* Closes a database handle. Internally, it will also
|
|
* mark the handle as free, so this particular handle may
|
|
* be re-used in the future to save time.
|
|
*/
|
|
native dbi_close(&Sql:_sql);
|
|
|
|
/* Returns an error message set. For PGSQL and MySQL,
|
|
* this is a direct error return from the database handle/API.
|
|
* For MSSQL, it returns the last error message found from a
|
|
* thrown exception.
|
|
*/
|
|
native dbi_error(Sql:_sql, _error[], _len);
|
|
|
|
/* Returns the type of database being used. So far:
|
|
* "mysql", "pgsql", "mssql", "sqlite"
|
|
*/
|
|
native dbi_type(_type[], _len);
|
|
|
|
/* Returns the number of fields/colums in a result set.
|
|
* Unlike dbi_nextrow, you must pass a valid result handle.
|
|
*/
|
|
native dbi_num_fields(Result:result);
|
|
|
|
/* Retrieves the name of a field/column in a result set.
|
|
* Requires a valid result handle, and columns are numbered 1 to n.
|
|
*/
|
|
native dbi_field_name(Result:result, field, name[], maxLength);
|
|
|
|
/* This function can be used to find out if a table in a Sqlite database exists.
|
|
*/
|
|
stock bool:sqlite_table_exists(Sql:sql, table[])
|
|
{
|
|
new bool:exists;
|
|
new query[128];
|
|
format(query, 127, "SELECT name FROM sqlite_master WHERE type='table' AND name='%s' LIMIT 1;", table);
|
|
|
|
new Result:result = dbi_query(sql, query);
|
|
|
|
if (dbi_nextrow(result))
|
|
{
|
|
exists = true;
|
|
}
|
|
else
|
|
{
|
|
exists = false;
|
|
}
|
|
|
|
if (result > RESULT_NONE)
|
|
{
|
|
dbi_free_result(result);
|
|
}
|
|
|
|
return exists;
|
|
}
|