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added affinity stuff

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This commit is contained in:
David Anderson 2006-05-19 02:04:09 +00:00
parent bce3bce586
commit e0bed163ac
2 changed files with 61 additions and 4 deletions
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63
plugins/include/sqlx.inc
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@ -51,7 +51,6 @@ native Handle:SQL_Connect(Handle:cn_tuple, &errcode, error[], maxlength);
*/
native Handle:SQL_PrepareQuery(Handle:db, const fmt[], {Float,_}:...);
#define TQUERY_CONNECT_FAILED -2
#define TQUERY_QUERY_FAILED -1
#define TQUERY_SUCCESS 0
@ -165,10 +164,68 @@ native SQL_FieldNumToName(Handle:query, num, name[], maxlength);
*/
native SQL_FieldNameToNum(Handle:query, const name[]);
/**
* Returns which driver this plugin is currently bound to.
*/
native SQL_GetAffinity(driver[], maxlen);
/**
* Sets driver affinity (NOT IMPLEMENTED).
* Sets driver affinity. You can use this to force a particular
* driver implementation. This will automatically change all SQL
* natives in your plugin to be "bound" to the module in question.
* If no such module is found, it will return 0.
* Note, that using this while you have open handles to another database
* type will cause problems. I.e., you cannot open a handle, switch
* affinity, then close the handle with a different driver.
* Switching affinity is an O(n*m) operation, where n is the number of
* SQL natives and m is the number of used natives in total.
* Intuitive programmers will note that this causes problems for threaded queries.
* You will have to either force your script to work under one affinity, or to
* pack the affinity type into the query data, check it against the current, then
* set the new affinity if necessary. Then, restore the old for safety.
*/
// native SQL_SetAffinity(Handle:connection, const driver[]);
native SQL_SetAffinity(const driver[]);
/**
* This function can be used to find out if a table in a Sqlite database exists.
* (updated for newer API)
*/
stock bool:sqlite_TableExists(Handle:db, const table[])
{
new Handle:query = SQL_PrepareQuery(
db,
"SELECT name FROM sqlite_master WHERE type='table' AND name='%s' LIMIT 1;",
table);
if (!SQL_Execute(query) || !SQL_NumResults(query))
{
SQL_FreeHandle(query);
return false;
}
SQL_FreeHandle(query);
return true;
}
/**
* Use this for executing a query where you don't care about the result.
* Returns 0 on failure, 1 on success
*/
stock SQL_SimpleQuery(Handle:db, const query[], error[]="", maxlength=0, &rows=0)
{
new Handle:hQuery = SQL_PrepareQuery(db, "%s", query);
if (!SQL_Execute(hQuery))
{
SQL_QueryError(hQuery, error, maxlength);
SQL_FreeHandle(hQuery)
return 0;
}
rows = SQL_NumResults(hQuery)
SQL_FreeHandle(hQuery);
return 1
}