Heather Lee Wilson | bdd62c5 | 2013-12-28 15:12:39 -0800 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2008 Google Inc. |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | #include <stddef.h> |
| 17 | #include <stdio.h> |
| 18 | #include <database.h> |
| 19 | #ifdef _WIN32 |
| 20 | #define snprintf _snprintf |
| 21 | #endif // _WIN32 |
| 22 | |
| 23 | // Connect to the database containing customer information. |
| 24 | DatabaseConnection* connect_to_customer_database() { |
| 25 | return connect_to_database("customers.abcd.org", 321); |
| 26 | } |
| 27 | |
| 28 | /* Find the ID of a customer by his/her name returning a value > 0 if |
| 29 | * successful, 0 otherwise. */ |
| 30 | unsigned int get_customer_id_by_name( |
| 31 | DatabaseConnection * const connection, |
| 32 | const char * const customer_name) { |
| 33 | char query_string[256]; |
| 34 | int number_of_results; |
| 35 | void **results; |
| 36 | snprintf(query_string, sizeof(query_string), |
| 37 | "SELECT ID FROM CUSTOMERS WHERE NAME = %s", customer_name); |
| 38 | number_of_results = connection->query_database(connection, query_string, |
| 39 | &results); |
| 40 | if (number_of_results != 1) { |
| 41 | return -1; |
| 42 | } |
| 43 | return (unsigned int)results[0]; |
| 44 | } |