TokyoTyrantQuery::metaSearch()

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Retrieve records with multiple queries

说明

publicTokyoTyrantQuery::metaSearch(array $queries,int $type): array

Executes multiple queries on a database and returns matching records. The current object is always the left most object in the search.

参数

$queries

Array of TokyoTyrantQuery objects

$type

One of the TokyoTyrant::RDBMS_* constants

返回值

Returns the matching rows and throws TokyoTyrantException on error

范例

Example #1 TokyoTyrantQuery::metaSearch() example

<?php
/* Connect to a table database */
$tt = new TokyoTyrantTable("localhost", 1979);
/* Add test data */
$tt->put('cherry',     array('color' => 'red'));
$tt->put('strawberry', array('color' => 'red'));
$tt->put('apple',      array('color' => 'green'));
$tt->put('lemon',      array('color' => 'yellow'));
/* First query */
$query = $tt->getQuery();
$query->addCond('color', TokyoTyrant::RDBQC_STREQ, 'red')->setOrder('color', TokyoTyrant::RDBQO_STRASC);
/* Second query */
$query1 = $tt->getQuery();
$query1->addCond('color', TokyoTyrant::RDBQC_STREQ, 'yellow');
/* Get union between the queries */
var_dump($query->metaSearch(array($query1), TokyoTyrant::RDBMS_UNION));
?>

以上例程会输出：

array(3) {
  ["cherry"]=>
  array(1) {
    ["color"]=>
    string(3) "red"
  }
  ["strawberry"]=>
  array(1) {
    ["color"]=>
    string(3) "red"
  }
  ["lemon"]=>
  array(1) {
    ["color"]=>
    string(6) "yellow"
  }
}

参见

• TokyoTyrantQuery::search() Searches records