Simple MySQL-C ORM - 簡化C語言訪問MySQL

當你需要在純C語言的應用程序中訪問 MySQL 表中的數據時，是非常繁瑣的事情，而該框架可以幫你大量的簡化編碼的工作，該框架采用 Python 開發，適用于 C 語言程序。

#include <db.h>
#include <stdio.h>
#include <string.h>
#include <time.h>


int main (int argc, char **argv)
{
    int ret;
    MYSQL global_mysql;
    MYSQL *m;

    db_ex_customer *cust1;
    db_ex_item *item1, *item2;

    mysql_init (& global_mysql);

    /*
     * connect to MySQL as usual
     */
    m = mysql_real_connect (& global_mysql, "localhost", "root", "", "ex1", 3036, NULL, 0);

    /*
     * pass the MySQL connection to function, that initializes the "ORM"
     */
    ret = db_init (& global_mysql);

    /*
     * the *__new method creates empty structure
     */
    cust1 = db_ex_customer__new ();
    /*
     * setting the structure attribute with allocated string,
     * it will be freed during call of *__free method
     */
    cust1->name = strdup ("alesak");

    /*
     * this methods inserts the structure into according table.
     * If it has serial field, its value is reflected into structure
     */
    ret = db_ex_customer__insert (cust1);

    item1 = db_ex_item__new ();
    item1->customer_id = cust1->id;
    item1->itemname = strdup ("simple orm");

    ret = db_ex_item__insert (item1);

    item2 = db_ex_item__new ();
    item2->customer_id = cust1->id;
    item2->itemname = strdup ("advanced orm");

    ret = db_ex_item__insert (item2);

    db_ex_customer__free (cust1);
    db_ex_item__free (item1);
    db_ex_item__free (item2);

    return (0);
}

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