--- /dev/null
+<?php
+
+namespace Drupal\KernelTests\Core\Database;
+
+use Drupal\Core\Database\Database;
+use Drupal\Core\Database\RowCountException;
+use Drupal\user\Entity\User;
+
+/**
+ * Tests the Select query builder with more complex queries.
+ *
+ * @group Database
+ */
+class SelectComplexTest extends DatabaseTestBase {
+
+ /**
+ * Modules to enable.
+ *
+ * @var array
+ */
+ public static $modules = ['system', 'user', 'node_access_test', 'field'];
+
+ /**
+ * Tests simple JOIN statements.
+ */
+ public function testDefaultJoin() {
+ $query = db_select('test_task', 't');
+ $people_alias = $query->join('test', 'p', 't.pid = p.id');
+ $name_field = $query->addField($people_alias, 'name', 'name');
+ $query->addField('t', 'task', 'task');
+ $priority_field = $query->addField('t', 'priority', 'priority');
+
+ $query->orderBy($priority_field);
+ $result = $query->execute();
+
+ $num_records = 0;
+ $last_priority = 0;
+ foreach ($result as $record) {
+ $num_records++;
+ $this->assertTrue($record->$priority_field >= $last_priority, 'Results returned in correct order.');
+ $this->assertNotEqual($record->$name_field, 'Ringo', 'Taskless person not selected.');
+ $last_priority = $record->$priority_field;
+ }
+
+ $this->assertEqual($num_records, 7, 'Returned the correct number of rows.');
+ }
+
+ /**
+ * Tests LEFT OUTER joins.
+ */
+ public function testLeftOuterJoin() {
+ $query = db_select('test', 'p');
+ $people_alias = $query->leftJoin('test_task', 't', 't.pid = p.id');
+ $name_field = $query->addField('p', 'name', 'name');
+ $query->addField($people_alias, 'task', 'task');
+ $query->addField($people_alias, 'priority', 'priority');
+
+ $query->orderBy($name_field);
+ $result = $query->execute();
+
+ $num_records = 0;
+ $last_name = 0;
+
+ foreach ($result as $record) {
+ $num_records++;
+ $this->assertTrue(strcmp($record->$name_field, $last_name) >= 0, 'Results returned in correct order.');
+ }
+
+ $this->assertEqual($num_records, 8, 'Returned the correct number of rows.');
+ }
+
+ /**
+ * Tests GROUP BY clauses.
+ */
+ public function testGroupBy() {
+ $query = db_select('test_task', 't');
+ $count_field = $query->addExpression('COUNT(task)', 'num');
+ $task_field = $query->addField('t', 'task');
+ $query->orderBy($count_field);
+ $query->groupBy($task_field);
+ $result = $query->execute();
+
+ $num_records = 0;
+ $last_count = 0;
+ $records = [];
+ foreach ($result as $record) {
+ $num_records++;
+ $this->assertTrue($record->$count_field >= $last_count, 'Results returned in correct order.');
+ $last_count = $record->$count_field;
+ $records[$record->$task_field] = $record->$count_field;
+ }
+
+ $correct_results = [
+ 'eat' => 1,
+ 'sleep' => 2,
+ 'code' => 1,
+ 'found new band' => 1,
+ 'perform at superbowl' => 1,
+ ];
+
+ foreach ($correct_results as $task => $count) {
+ $this->assertEqual($records[$task], $count, format_string("Correct number of '@task' records found.", ['@task' => $task]));
+ }
+
+ $this->assertEqual($num_records, 6, 'Returned the correct number of total rows.');
+ }
+
+ /**
+ * Tests GROUP BY and HAVING clauses together.
+ */
+ public function testGroupByAndHaving() {
+ $query = db_select('test_task', 't');
+ $count_field = $query->addExpression('COUNT(task)', 'num');
+ $task_field = $query->addField('t', 'task');
+ $query->orderBy($count_field);
+ $query->groupBy($task_field);
+ $query->having('COUNT(task) >= 2');
+ $result = $query->execute();
+
+ $num_records = 0;
+ $last_count = 0;
+ $records = [];
+ foreach ($result as $record) {
+ $num_records++;
+ $this->assertTrue($record->$count_field >= 2, 'Record has the minimum count.');
+ $this->assertTrue($record->$count_field >= $last_count, 'Results returned in correct order.');
+ $last_count = $record->$count_field;
+ $records[$record->$task_field] = $record->$count_field;
+ }
+
+ $correct_results = [
+ 'sleep' => 2,
+ ];
+
+ foreach ($correct_results as $task => $count) {
+ $this->assertEqual($records[$task], $count, format_string("Correct number of '@task' records found.", ['@task' => $task]));
+ }
+
+ $this->assertEqual($num_records, 1, 'Returned the correct number of total rows.');
+ }
+
+ /**
+ * Tests range queries.
+ *
+ * The SQL clause varies with the database.
+ */
+ public function testRange() {
+ $query = db_select('test');
+ $query->addField('test', 'name');
+ $query->addField('test', 'age', 'age');
+ $query->range(0, 2);
+ $query_result = $query->countQuery()->execute()->fetchField();
+
+ $this->assertEqual($query_result, 2, 'Returned the correct number of rows.');
+ }
+
+ /**
+ * Test whether the range property of a select clause can be undone.
+ */
+ public function testRangeUndo() {
+ $query = db_select('test');
+ $name_field = $query->addField('test', 'name');
+ $age_field = $query->addField('test', 'age', 'age');
+ $query->range(0, 2);
+ $query->range(NULL, NULL);
+ $query_result = $query->countQuery()->execute()->fetchField();
+
+ $this->assertEqual($query_result, 4, 'Returned the correct number of rows.');
+ }
+
+ /**
+ * Tests distinct queries.
+ */
+ public function testDistinct() {
+ $query = db_select('test_task');
+ $query->addField('test_task', 'task');
+ $query->distinct();
+ $query_result = $query->countQuery()->execute()->fetchField();
+
+ $this->assertEqual($query_result, 6, 'Returned the correct number of rows.');
+ }
+
+ /**
+ * Tests that we can generate a count query from a built query.
+ */
+ public function testCountQuery() {
+ $query = db_select('test');
+ $name_field = $query->addField('test', 'name');
+ $age_field = $query->addField('test', 'age', 'age');
+ $query->orderBy('name');
+
+ $count = $query->countQuery()->execute()->fetchField();
+
+ $this->assertEqual($count, 4, 'Counted the correct number of records.');
+
+ // Now make sure we didn't break the original query! We should still have
+ // all of the fields we asked for.
+ $record = $query->execute()->fetch();
+ $this->assertEqual($record->$name_field, 'George', 'Correct data retrieved.');
+ $this->assertEqual($record->$age_field, 27, 'Correct data retrieved.');
+ }
+
+ /**
+ * Tests having queries.
+ */
+ public function testHavingCountQuery() {
+ $query = db_select('test')
+ ->extend('Drupal\Core\Database\Query\PagerSelectExtender')
+ ->groupBy('age')
+ ->having('age + 1 > 0');
+ $query->addField('test', 'age');
+ $query->addExpression('age + 1');
+ $count = count($query->execute()->fetchCol());
+ $this->assertEqual($count, 4, 'Counted the correct number of records.');
+ }
+
+ /**
+ * Tests that countQuery removes 'all_fields' statements and ordering clauses.
+ */
+ public function testCountQueryRemovals() {
+ $query = db_select('test');
+ $query->fields('test');
+ $query->orderBy('name');
+ $count = $query->countQuery();
+
+ // Check that the 'all_fields' statement is handled properly.
+ $tables = $query->getTables();
+ $this->assertEqual($tables['test']['all_fields'], 1, 'Query correctly sets \'all_fields\' statement.');
+ $tables = $count->getTables();
+ $this->assertFalse(isset($tables['test']['all_fields']), 'Count query correctly unsets \'all_fields\' statement.');
+
+ // Check that the ordering clause is handled properly.
+ $orderby = $query->getOrderBy();
+ // The orderby string is different for PostgreSQL.
+ // @see Drupal\Core\Database\Driver\pgsql\Select::orderBy()
+ $db_type = Database::getConnection()->databaseType();
+ $this->assertEqual($orderby['name'], ($db_type == 'pgsql' ? 'ASC NULLS FIRST' : 'ASC'), 'Query correctly sets ordering clause.');
+ $orderby = $count->getOrderBy();
+ $this->assertFalse(isset($orderby['name']), 'Count query correctly unsets ordering clause.');
+
+ // Make sure that the count query works.
+ $count = $count->execute()->fetchField();
+
+ $this->assertEqual($count, 4, 'Counted the correct number of records.');
+ }
+
+
+ /**
+ * Tests that countQuery properly removes fields and expressions.
+ */
+ public function testCountQueryFieldRemovals() {
+ // countQuery should remove all fields and expressions, so this can be
+ // tested by adding a non-existent field and expression: if it ends
+ // up in the query, an error will be thrown. If not, it will return the
+ // number of records, which in this case happens to be 4 (there are four
+ // records in the {test} table).
+ $query = db_select('test');
+ $query->fields('test', ['fail']);
+ $this->assertEqual(4, $query->countQuery()->execute()->fetchField(), 'Count Query removed fields');
+
+ $query = db_select('test');
+ $query->addExpression('fail');
+ $this->assertEqual(4, $query->countQuery()->execute()->fetchField(), 'Count Query removed expressions');
+ }
+
+ /**
+ * Tests that we can generate a count query from a query with distinct.
+ */
+ public function testCountQueryDistinct() {
+ $query = db_select('test_task');
+ $query->addField('test_task', 'task');
+ $query->distinct();
+
+ $count = $query->countQuery()->execute()->fetchField();
+
+ $this->assertEqual($count, 6, 'Counted the correct number of records.');
+ }
+
+ /**
+ * Tests that we can generate a count query from a query with GROUP BY.
+ */
+ public function testCountQueryGroupBy() {
+ $query = db_select('test_task');
+ $query->addField('test_task', 'pid');
+ $query->groupBy('pid');
+
+ $count = $query->countQuery()->execute()->fetchField();
+
+ $this->assertEqual($count, 3, 'Counted the correct number of records.');
+
+ // Use a column alias as, without one, the query can succeed for the wrong
+ // reason.
+ $query = db_select('test_task');
+ $query->addField('test_task', 'pid', 'pid_alias');
+ $query->addExpression('COUNT(test_task.task)', 'count');
+ $query->groupBy('pid_alias');
+ $query->orderBy('pid_alias', 'asc');
+
+ $count = $query->countQuery()->execute()->fetchField();
+
+ $this->assertEqual($count, 3, 'Counted the correct number of records.');
+ }
+
+ /**
+ * Confirms that we can properly nest conditional clauses.
+ */
+ public function testNestedConditions() {
+ // This query should translate to:
+ // "SELECT job FROM {test} WHERE name = 'Paul' AND (age = 26 OR age = 27)"
+ // That should find only one record. Yes it's a non-optimal way of writing
+ // that query but that's not the point!
+ $query = db_select('test');
+ $query->addField('test', 'job');
+ $query->condition('name', 'Paul');
+ $query->condition(db_or()->condition('age', 26)->condition('age', 27));
+
+ $job = $query->execute()->fetchField();
+ $this->assertEqual($job, 'Songwriter', 'Correct data retrieved.');
+ }
+
+ /**
+ * Confirms we can join on a single table twice with a dynamic alias.
+ */
+ public function testJoinTwice() {
+ $query = db_select('test')->fields('test');
+ $alias = $query->join('test', 'test', 'test.job = %alias.job');
+ $query->addField($alias, 'name', 'othername');
+ $query->addField($alias, 'job', 'otherjob');
+ $query->where("$alias.name <> test.name");
+ $crowded_job = $query->execute()->fetch();
+ $this->assertEqual($crowded_job->job, $crowded_job->otherjob, 'Correctly joined same table twice.');
+ $this->assertNotEqual($crowded_job->name, $crowded_job->othername, 'Correctly joined same table twice.');
+ }
+
+ /**
+ * Tests that we can join on a query.
+ */
+ public function testJoinSubquery() {
+ $this->installSchema('system', 'sequences');
+
+ $account = User::create([
+ 'name' => $this->randomMachineName(),
+ 'mail' => $this->randomMachineName() . '@example.com',
+ ]);
+
+ $query = db_select('test_task', 'tt', ['target' => 'replica']);
+ $query->addExpression('tt.pid + 1', 'abc');
+ $query->condition('priority', 1, '>');
+ $query->condition('priority', 100, '<');
+
+ $subquery = db_select('test', 'tp');
+ $subquery->join('test_one_blob', 'tpb', 'tp.id = tpb.id');
+ $subquery->join('node', 'n', 'tp.id = n.nid');
+ $subquery->addTag('node_access');
+ $subquery->addMetaData('account', $account);
+ $subquery->addField('tp', 'id');
+ $subquery->condition('age', 5, '>');
+ $subquery->condition('age', 500, '<');
+
+ $query->leftJoin($subquery, 'sq', 'tt.pid = sq.id');
+ $query->join('test_one_blob', 'tb3', 'tt.pid = tb3.id');
+
+ // Construct the query string.
+ // This is the same sequence that SelectQuery::execute() goes through.
+ $query->preExecute();
+ $query->getArguments();
+ $str = (string) $query;
+
+ // Verify that the string only has one copy of condition placeholder 0.
+ $pos = strpos($str, 'db_condition_placeholder_0', 0);
+ $pos2 = strpos($str, 'db_condition_placeholder_0', $pos + 1);
+ $this->assertFalse($pos2, 'Condition placeholder is not repeated.');
+ }
+
+ /**
+ * Tests that rowCount() throws exception on SELECT query.
+ */
+ public function testSelectWithRowCount() {
+ $query = db_select('test');
+ $query->addField('test', 'name');
+ $result = $query->execute();
+ try {
+ $result->rowCount();
+ $exception = FALSE;
+ }
+ catch (RowCountException $e) {
+ $exception = TRUE;
+ }
+ $this->assertTrue($exception, 'Exception was thrown');
+ }
+
+ /**
+ * Test that join conditions can use Condition objects.
+ */
+ public function testJoinConditionObject() {
+ // Same test as testDefaultJoin, but with a Condition object.
+ $query = db_select('test_task', 't');
+ $join_cond = db_and()->where('t.pid = p.id');
+ $people_alias = $query->join('test', 'p', $join_cond);
+ $name_field = $query->addField($people_alias, 'name', 'name');
+ $query->addField('t', 'task', 'task');
+ $priority_field = $query->addField('t', 'priority', 'priority');
+
+ $query->orderBy($priority_field);
+ $result = $query->execute();
+
+ $num_records = 0;
+ $last_priority = 0;
+ foreach ($result as $record) {
+ $num_records++;
+ $this->assertTrue($record->$priority_field >= $last_priority, 'Results returned in correct order.');
+ $this->assertNotEqual($record->$name_field, 'Ringo', 'Taskless person not selected.');
+ $last_priority = $record->$priority_field;
+ }
+
+ $this->assertEqual($num_records, 7, 'Returned the correct number of rows.');
+
+ // Test a condition object that creates placeholders.
+ $t1_name = 'John';
+ $t2_name = 'George';
+ $join_cond = db_and()
+ ->condition('t1.name', $t1_name)
+ ->condition('t2.name', $t2_name);
+ $query = db_select('test', 't1');
+ $query->innerJoin('test', 't2', $join_cond);
+ $query->addField('t1', 'name', 't1_name');
+ $query->addField('t2', 'name', 't2_name');
+
+ $num_records = $query->countQuery()->execute()->fetchField();
+ $this->assertEqual($num_records, 1, 'Query expected to return 1 row. Actual: ' . $num_records);
+ if ($num_records == 1) {
+ $record = $query->execute()->fetchObject();
+ $this->assertEqual($record->t1_name, $t1_name, 'Query expected to retrieve name ' . $t1_name . ' from table t1. Actual: ' . $record->t1_name);
+ $this->assertEqual($record->t2_name, $t2_name, 'Query expected to retrieve name ' . $t2_name . ' from table t2. Actual: ' . $record->t2_name);
+ }
+ }
+
+}
projects / yaffs-website / blobdiff