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优化multiAggregate操作，可以聚合多个参数 #37

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优化multiAggregate操作，可以聚合多个参数 #37

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16d8f6c
add multiAggregate
noprom May 9, 2017
038b220
update name
noprom May 9, 2017
8497d0e
add author
noprom May 9, 2017
1841e93
reset composer
noprom May 9, 2017
ab7104c
对于一个聚合操作, 支持多个字段
noprom May 15, 2017
ac86a4f
Merge branch 'master' into master
noprom May 15, 2017
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11 changes: 9 additions & 2 deletions src/Builder.php
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Original file line number Diff line number Diff line change
Expand Up @@ -474,8 +474,15 @@ public function multiAggregate($options, $extra)
$groups['_id'][$field] = '$' . $field;
}

foreach ($aggregate as $fun => $field) {
$groups[$field . '_' . $fun] = ['$' . $fun => '$' . $field];
// 支持对于一个聚合操作添加多个字段
foreach ($aggregate as $fun => $fields) {
foreach ($fields as $field) {
if ($fun == 'count') {
$groups[$field . '_count'] = ['$sum' => 1];
} else {
$groups[$field . '_' . $fun] = ['$' . $fun => '$' . $field];
}
}
}
$pipeline = [
['$match' => (object)$this->parseWhere($options['where'])],
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3 changes: 2 additions & 1 deletion src/Query.php
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Expand Up @@ -494,7 +494,8 @@ public function count()
/**
* 多聚合操作
*
* @param array $aggregate 聚合指令, 可以聚合多个参数, 如 ['sum' => 'field1', 'avg' => 'field2']
* @param array $aggregate 聚合指令, 可以聚合多个参数
* 如 ['sum' => ['field1', 'field2'], 'avg' => ['field2', 'field3']]
* @param array $groupBy 类似mysql里面的group字段, 可以传入多个字段, 如 ['field_a', 'field_b', 'field_c']
* @return array 查询结果
*/
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