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New function record_exists_select with unit tests for all the record_exists_* functions.

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This commit is contained in:
tjhunt 2006-08-18 11:28:30 +00:00
parent bc2defd5f8
commit 5553c2ec47
2 changed files with 35 additions and 0 deletions
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18
lib/datalib.php
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@ -436,6 +436,24 @@ function record_exists($table, $field1='', $value1='', $field2='', $value2='', $
return record_exists_sql('SELECT * FROM '. $CFG->prefix . $table .' '. $select .' LIMIT 1');
}
/**
* Test whether any records exists in a table which match a particular WHERE clause.
*
* @uses $CFG
* @param string $table The database table to be checked against.
* @param string $select A fragment of SQL to be used in a WHERE clause in the SQL call.
* @return bool true if a matching record exists, else false.
*/
function record_exists_select($table, $select='') {
global $CFG;
if ($select) {
$select = 'WHERE '.$select;
}
return record_exists_sql('SELECT * FROM '. $CFG->prefix . $table . ' ' . $select);
}
/**
* Test whether a SQL SELECT statement returns any records.

17
lib/simpletest/testdatalib.php
View File

@ -51,6 +51,23 @@ class datalib_test extends prefix_changing_test_case {
$this->assertEqual(where_clause('f1', 'v1', 'f2', 2), "WHERE f1 = 'v1' AND f2 = '2'");
$this->assertEqual(where_clause('f1', 'v1', 'f2', 1.75, 'f3', 'v3'), "WHERE f1 = 'v1' AND f2 = '1.75' AND f3 = 'v3'");
}
function test_record_exists() {
$this->assertTrue(record_exists($this->table, 'number', 101, 'id', 1));
$this->assertFalse(record_exists($this->table, 'number', 102, 'id', 1));
}
function test_record_exists_select() {
$this->assertTrue(record_exists_select($this->table, 'number = 101 AND id = 1'));
$this->assertFalse(record_exists_select($this->table, 'number = 102 AND id = 1'));
}
function test_record_exists_sql() {
global $CFG;
$this->assertTrue(record_exists_sql("SELECT * FROM {$CFG->prefix}$this->table WHERE number = 101 AND id = 1"));
$this->assertFalse(record_exists_sql("SELECT * FROM {$CFG->prefix}$this->table WHERE number = 102 AND id = 1"));
}
function test_get_record() {
// Get particular records.