PHP ebi Q示例

示例#1

文件： SessionDao.php 项目： tokushima/ebi

 /**
  * @plugin ebi.Session
  * @param int $maxlifetime
  * @return boolean
  */
 public function session_gc($maxlifetime)
 {
     try {
         static::find_delete(Q::lt('expires', time() - $maxlifetime));
         static::commit();
         return true;
     } catch (\Exception $e) {
     }
     return false;
 }

示例#2

文件： crud.php 项目： tokushima/ebi

<?php

use ebi\Q;
\test\db\Crud::create_table();
\test\db\Crud::find_delete();
$start = microtime(true);
eq(0, \test\db\Crud::find_count());
for ($i = 1; $i <= 10; $i++) {
    (new \test\db\Crud())->value($i)->save();
}
eq(0, \test\db\Crud::find_count(Q::eq('value', -1)));
eq(10, \test\db\Crud::find_count());
$start = microtime(true);
foreach (\test\db\Crud::find() as $o) {
    $o->value($o->value() + 1)->save();
}
eq(10, \test\db\Crud::find_count());
foreach (\test\db\Crud::find() as $o) {
    $o->delete();
}
eq(0, \test\db\Crud::find_count());

示例#3

文件： update_model.php 项目： tokushima/ebi

<?php

use ebi\Q;
\test\db\UpdateModel::create_table();
\test\db\UpdateModel::find_delete();
(new \test\db\UpdateModel())->value('abc')->save();
(new \test\db\UpdateModel())->value('def')->save();
(new \test\db\UpdateModel())->value('def')->save();
(new \test\db\UpdateModel())->value('def')->save();
(new \test\db\UpdateModel())->value('ghi')->save();
eq(5, \test\db\UpdateModel::find_count());
\test\db\UpdateModel::find_delete(Q::eq('value', 'def'));
eq(2, \test\db\UpdateModel::find_count());
\test\db\UpdateModel::find_delete();
$d1 = (new \test\db\UpdateModel())->value('abc')->save();
$d2 = (new \test\db\UpdateModel())->value('def')->save();
$d3 = (new \test\db\UpdateModel())->value('ghi')->save();
eq(3, \test\db\UpdateModel::find_count());
$obj = new \test\db\UpdateModel();
$obj->id($d1->id())->delete();
eq(2, \test\db\UpdateModel::find_count());
$obj = new \test\db\UpdateModel();
$obj->id($d3->id())->delete();
eq(1, \test\db\UpdateModel::find_count());
eq('def', \test\db\UpdateModel::find_get()->value());
\test\db\UpdateModel::find_delete();
$s1 = (new \test\db\UpdateModel())->value('abc')->save();
$s2 = (new \test\db\UpdateModel())->value('def')->save();
$s3 = (new \test\db\UpdateModel())->value('ghi')->save();
eq(3, \test\db\UpdateModel::find_count());
$obj = new \test\db\UpdateModel();

示例#4

文件： send_smtp_bh.php 项目： tokushima/ebi

<?php

$mail = new \ebi\Mail();
$mail->from('*****@*****.**');
$mail->to('*****@*****.**');
$mail->send('subject', 'body');
$dao = \ebi\SmtpBlackholeDao::find_get(\ebi\Q::order('-id'));
eq('subject', $dao->subject());
eq('body', $dao->message());
eq('*****@*****.**', $dao->to());

示例#5

文件： composite_primary_keys.php 项目： tokushima/ebi

<?php

use ebi\Q;
\test\db\CompositePrimaryKeys::create_table();
\test\db\CompositePrimaryKeys::find_delete();
(new \test\db\CompositePrimaryKeys())->id1(1)->id2(1)->value('AAA1')->save();
(new \test\db\CompositePrimaryKeys())->id1(1)->id2(2)->value('AAA2')->save();
(new \test\db\CompositePrimaryKeys())->id1(1)->id2(3)->value('AAA3')->save();
(new \test\db\CompositePrimaryKeys())->id1(2)->id2(1)->value('BBB1')->save();
(new \test\db\CompositePrimaryKeys())->id1(2)->id2(2)->value('BBB2')->save();
(new \test\db\CompositePrimaryKeys())->id1(2)->id2(3)->value('BBB3')->save();
\test\db\CompositePrimaryKeysRef::create_table();
\test\db\CompositePrimaryKeysRef::find_delete();
(new \test\db\CompositePrimaryKeysRef())->ref_id(1)->type_id(1)->save();
(new \test\db\CompositePrimaryKeysRef())->ref_id(2)->type_id(1)->save();
(new \test\db\CompositePrimaryKeysRef())->ref_id(1)->type_id(2)->save();
(new \test\db\CompositePrimaryKeysRef())->ref_id(2)->type_id(2)->save();
$i = 0;
$r = [[1, 1, 'AAA1'], [2, 1, 'BBB1'], [1, 2, 'AAA2'], [2, 2, 'BBB2']];
foreach (\test\db\CompositePrimaryKeysRefValue::find(Q::order('type_id,id')) as $o) {
    eq($r[$i][0], $o->ref_id());
    eq($r[$i][1], $o->type_id());
    eq($r[$i][2], $o->value());
    $i++;
}
eq(4, $i);

示例#6

文件： between.php 项目： tokushima/ebi

<?php

use ebi\Q;
\test\db\FindBetween::create_table();
\test\db\FindBetween::find_delete();
(new \test\db\FindBetween())->int(1)->char('A')->date('2016/01/01')->timestamp('2016/01/01 11:00:00')->save();
(new \test\db\FindBetween())->int(2)->char('B')->date('2016/02/02')->timestamp('2016/02/02 12:00:00')->save();
(new \test\db\FindBetween())->int(3)->char('C')->date('2016/03/03')->timestamp('2016/03/03 13:00:00')->save();
(new \test\db\FindBetween())->int(4)->char('D')->date('2016/04/04')->timestamp('2016/04/04 14:00:00')->save();
eq(3, \test\db\FindBetween::find_count(Q::between('timestamp', '2016/01/01', '2016/03/03')));
eq(2, \test\db\FindBetween::find_count(Q::between('timestamp', '2016/01/01', '2016/03/02')));
eq(3, \test\db\FindBetween::find_count(Q::between('timestamp', '2016/01', '2016/03')));
eq(2, \test\db\FindBetween::find_count(Q::between('char', 'B', 'C')));
eq(3, \test\db\FindBetween::find_count(Q::between('int', 2, 4)));
eq(3, \test\db\FindBetween::find_count(Q::between('date', '2016/01/01', '2016/03/03')));
eq(2, \test\db\FindBetween::find_count(Q::between('date', '2016/01/01', '2016/03/02')));
eq(3, \test\db\FindBetween::find_count(Q::between('date', '2016/01', '2016/03')));

示例#7

文件： date_format_distinct.php 项目： tokushima/ebi

<?php

use ebi\Q;
\test\db\DateTime::find_delete();
(new \test\db\DateTime())->ts('2015/07/21 12:13:14')->save();
(new \test\db\DateTime())->ts('2015/07/22 12:13:14')->save();
(new \test\db\DateTime())->ts('2015/07/23 13:13:14')->save();
(new \test\db\DateTime())->ts('2015/07/21 14:13:14')->save();
eq(['2015-07-21T00:00:00', '2015-07-22T00:00:00', '2015-07-23T00:00:00'], \test\db\DateTime::find_distinct('ts', Q::date_format('ts', 'Ymd')));
eq(['2000-01-01T12:00:00', '2000-01-01T13:00:00', '2000-01-01T14:00:00'], \test\db\DateTime::find_distinct('ts', Q::date_format('ts', 'H')));

示例#8

文件： Dao.php 项目： tokushima/ebi

 /**
  * 値の妥当性チェックを行う
  */
 public function validate()
 {
     foreach ($this->columns(true) as $name => $column) {
         if (!\ebi\Exceptions::has($name)) {
             $value = $this->{$name}();
             \ebi\Validator::value($name, $value, ['type' => $this->prop_anon($name, 'type'), 'min' => $this->prop_anon($name, 'min'), 'max' => $this->prop_anon($name, 'max'), 'require' => $this->prop_anon($name, 'require')]);
             $unique_together = $this->prop_anon($name, 'unique_together');
             if ($value !== '' && $value !== null && ($this->prop_anon($name, 'unique') === true || !empty($unique_together))) {
                 $uvalue = $value;
                 $q = [\ebi\Q::eq($name, $uvalue)];
                 if (!empty($unique_together)) {
                     foreach (is_array($unique_together) ? $unique_together : [$unique_together] as $c) {
                         $q[] = Q::eq($c, $this->{$c}());
                     }
                 }
                 foreach ($this->primary_columns() as $primary) {
                     if (null !== $this->{$primary->name()}) {
                         $q[] = Q::neq($primary->name(), $this->{$primary->name()});
                     }
                 }
                 if (0 < call_user_func_array([get_class($this), 'find_count'], $q)) {
                     \ebi\Exceptions::add(new \ebi\exception\UniqueException($name . ' unique'), $name);
                 }
             }
             $master = $this->prop_anon($name, 'master');
             if (!empty($master)) {
                 $master = str_replace('.', "\\", $master);
                 if ($master[0] !== '\\') {
                     $master = '\\' . $master;
                 }
                 try {
                     $r = new \ReflectionClass($master);
                 } catch (\ReflectionException $e) {
                     $self = new \ReflectionClass(get_class($this));
                     $r = new \ReflectionClass("\\" . $self->getNamespaceName() . $master);
                 }
                 $mo = $r->newInstanceArgs();
                 $primarys = $mo->primary_columns();
                 if (empty($primarys) || 0 === call_user_func_array([$mo, 'find_count'], [Q::eq(key($primarys), $this->{$name})])) {
                     \ebi\Exceptions::add(new \ebi\exception\NotFoundException($name . ' master not found'), $name);
                 }
             }
             try {
                 if (method_exists($this, '__verify_' . $column->name() . '__') && call_user_func([$this, '__verify_' . $column->name() . '__']) === false) {
                     \ebi\Exceptions::add(new \ebi\exception\VerifyException($column->name() . ' verification failed'), $column->name());
                 }
             } catch (\ebi\Exceptions $e) {
             } catch (\Exception $e) {
                 \ebi\Exceptions::add($e, $column->name());
             }
         }
     }
     \ebi\Exceptions::throw_over();
 }

示例#9

文件： DbConnector.php 项目： tokushima/ebi

 protected function column_alias_sql(Column $column, \ebi\Q $q, $alias = true)
 {
     $column_str = $alias ? $column->table_alias() . '.' . $this->quotation($column->column()) : $this->quotation($column->column());
     if ($q->ignore_case()) {
         return 'upper(' . $column_str . ')';
     }
     return $column_str;
 }

示例#10

文件： Dt.php 项目： tokushima/ebi

 /**
  * SmtpBlackholeDaoから送信されたメールの一番新しいものを返す
  * @param string $to
  * @param string $tcode
  * @param string $keyword
  * @return \ebi\SmtpBlackholeDao
  */
 public static function find_mail($to, $tcode = '', $keyword = '')
 {
     $q = new Q();
     $q->add(Q::eq('to', $to));
     $q->add(Q::gte('create_date', time() - 300));
     if (!empty($tcode)) {
         $q->add(Q::eq('tcode', $tcode));
     }
     foreach (\ebi\SmtpBlackholeDao::find($q, Q::order('-id')) as $mail) {
         $value = $mail->subject() . $mail->message();
         if (empty($keyword) || mb_strpos($value, $keyword) !== false) {
             return $mail;
         }
     }
     throw new \ebi\exception\NotFoundException('mail not found');
 }

示例#11

文件： AbcFind.php 项目： tokushima/ebi

 protected function __find_conds__()
 {
     return Q::b(Q::eq('value1', 'abc'));
 }

示例#12

文件： date_format.php 项目： tokushima/ebi

$obj = new \test\db\DateFormat();
$obj->ts($date);
$obj->num(10);
$obj->save();
foreach (\test\db\DateFormat::find() as $o) {
    eq(date('c', $date), $o->fm_ts());
}
foreach (\test\db\DateFormat::find(Q::date_format('ts', 'Ym')) as $o) {
    eq(date('c', strtotime('2015/07/01 00:00:00')), $o->fm_ts());
}
$date = strtotime('2015/07/01 12:34:56');
$obj = new \test\db\DateFormat();
$obj->ts($date);
$obj->num(20);
$obj->save();
$date = strtotime('2015/07/30 12:34:56');
$obj = new \test\db\DateFormat();
$obj->ts($date);
$obj->num(30);
$obj->save();
foreach (\test\db\DateFormat::find(Q::date_format('ts', 'Ym')) as $o) {
    eq(date('c', strtotime('2015/07/01 00:00:00')), $o->fm_ts());
}
$date = strtotime('2015/08/30 12:34:56');
$obj = new \test\db\DateFormat();
$obj->ts($date);
$obj->num(40);
$obj->save();
eq(4, sizeof(\test\db\DateFormat::find_sum_by('num', 'ts')));
eq(2, sizeof(\test\db\DateFormat::find_sum_by('num', 'ts', Q::date_format('ts', 'Ym'))));

示例#13

文件： calc.php 项目： tokushima/ebi

<?php

use ebi\Q;
\test\db\Calc::create_table();
\test\db\Calc::find_delete();
(new \test\db\Calc())->price(30)->type('B')->name('AAA')->save();
(new \test\db\Calc())->price(20)->type('B')->name('ccc')->save();
(new \test\db\Calc())->price(20)->type('A')->name('AAA')->save();
(new \test\db\Calc())->price(10)->type('A')->name('BBB')->save();
eq(80, \test\db\Calc::find_sum('price'));
eq(30, \test\db\Calc::find_sum('price', Q::eq('type', 'A')));
eq(array('A' => 30, 'B' => 50), \test\db\Calc::find_sum_by('price', 'type'));
eq(array('A' => 30), \test\db\Calc::find_sum_by('price', 'type', Q::eq('type', 'A')));
eq(30, \test\db\Calc::find_max('price'));
eq(20, \test\db\Calc::find_max('price', Q::eq('type', 'A')));
eq('ccc', \test\db\Calc::find_max('name'));
eq('BBB', \test\db\Calc::find_max('name', Q::eq('type', 'A')));
eq(10, \test\db\Calc::find_min('price'));
eq(20, \test\db\Calc::find_min('price', Q::eq('type', 'B')));
$result = \test\db\Calc::find_min_by('price', 'type');
eq(array('A' => 10, 'B' => 20), $result);
eq(array('A' => 10), \test\db\Calc::find_min_by('price', 'type', Q::eq('type', 'A')));
eq(20, \test\db\Calc::find_avg('price'));
eq(15, \test\db\Calc::find_avg('price', Q::eq('type', 'A')));
eq(array('A' => 15, 'B' => 25), \test\db\Calc::find_avg_by('price', 'type'));
eq(array('A' => 15), \test\db\Calc::find_avg_by('price', 'type', Q::eq('type', 'A')));
eq(array('A', 'B'), \test\db\Calc::find_distinct('type'));
$result = \test\db\Calc::find_distinct('name', Q::eq('type', 'A'));
eq(array('AAA', 'BBB'), $result);
eq(array('A' => 2, 'B' => 2), \test\db\Calc::find_count_by('id', 'type'));
eq(array('AAA' => 2, 'BBB' => 1, 'ccc' => 1), \test\db\Calc::find_count_by('type', 'name'));

示例#14

文件： boolean.php 项目： tokushima/ebi

<?php

use ebi\Q;
$obj = new \test\db\Boolean();
$obj->save();
$find = \test\db\Boolean::find_get(Q::eq('id', $obj->id()));
eq(null, $find->value());
$obj = new \test\db\Boolean();
$obj->value(true);
$obj->save();
$find = \test\db\Boolean::find_get(Q::eq('id', $obj->id()));
eq(true, $find->value());
$obj = new \test\db\Boolean();
$obj->value(false);
$obj->save();
$find = \test\db\Boolean::find_get(Q::eq('id', $obj->id()));
eq(false, $find->value());

示例#15

文件： new.php 项目： tokushima/ebi

$obj->save();
$obj = new \test\db\NewDao();
$obj->value('bbb');
$obj->save();
foreach (\test\db\NewDao::find() as $o) {
    neq(null, $o->value());
}
foreach (\test\db\NewDao::find(\ebi\Q::eq('value', 'aaa')) as $o) {
    eq('aaa', $o->value());
}
$obj = new \test\db\NewDao();
neq(null, $obj);
\test\db\NewDao::find_delete();
eq(0, \test\db\NewDao::find_count());
$obj = new \test\db\NewDao();
$obj->save();
$obj = new \test\db\NewDao();
$obj->value(null);
$obj->save();
$obj = new \test\db\NewDao();
$obj->value('');
$obj->save();
eq(1, \test\db\NewDao::find_count(Q::eq('value', '')));
eq(2, \test\db\NewDao::find_count(Q::eq('value', null)));
eq(3, \test\db\NewDao::find_count());
$r = array(null, null, '');
$i = 0;
foreach (\test\db\NewDao::find(Q::order('id')) as $o) {
    eq($r[$i], $o->value());
    $i++;
}

示例#16

文件： join.php 项目： tokushima/ebi

use ebi\Q;
\test\db\JoinA::create_table();
\test\db\JoinA::find_delete();
\test\db\JoinB::create_table();
\test\db\JoinB::find_delete();
\test\db\JoinC::create_table();
\test\db\JoinC::find_delete();
$a1 = (new \test\db\JoinA())->save();
$a2 = (new \test\db\JoinA())->save();
$a3 = (new \test\db\JoinA())->save();
$a4 = (new \test\db\JoinA())->save();
$a5 = (new \test\db\JoinA())->save();
$a6 = (new \test\db\JoinA())->save();
$b1 = (new \test\db\JoinB())->name("aaa")->save();
$b2 = (new \test\db\JoinB())->name("bbb")->save();
$c1 = (new \test\db\JoinC())->a_id($a1->id())->b_id($b1->id())->save();
$c2 = (new \test\db\JoinC())->a_id($a2->id())->b_id($b1->id())->save();
$c3 = (new \test\db\JoinC())->a_id($a3->id())->b_id($b1->id())->save();
$c4 = (new \test\db\JoinC())->a_id($a4->id())->b_id($b2->id())->save();
$c5 = (new \test\db\JoinC())->a_id($a4->id())->b_id($b1->id())->save();
$c6 = (new \test\db\JoinC())->a_id($a5->id())->b_id($b2->id())->save();
$c7 = (new \test\db\JoinC())->a_id($a5->id())->b_id($b1->id())->save();
$re = \test\db\JoinABC::find_all();
eq(7, sizeof($re));
$re = \test\db\JoinABC::find_all(Q::eq("name", "aaa"));
eq(5, sizeof($re));
$re = \test\db\JoinABC::find_all(Q::eq("name", "bbb"));
eq(2, sizeof($re));
$re = \test\db\JoinABBCC::find_all(Q::eq("name", "bbb"));
eq(2, sizeof($re));

示例#17

文件： match.php 项目： tokushima/ebi

<?php

use ebi\Q;
\test\db\Match::create_table();
\test\db\Match::find_delete();
(new \test\db\Match())->data1(10)->data2('XXX')->data3('AAABBB')->save();
(new \test\db\Match())->data1(20)->data2('YYY')->data3('BBBCCC')->save();
(new \test\db\Match())->data1(30)->data2('BBB')->data3('CCCDDD')->save();
(new \test\db\Match())->data1(40)->data2('IIIAAABBBEEE')->data3('AAADDDBBB')->save();
(new \test\db\Match())->data1(50)->data2('JJJ')->data3('EEEFFFIII')->save();
eq(4, \test\db\Match::find_count(Q::match('BBB')));
eq(2, \test\db\Match::find_count(Q::match('AAA BBB')));
eq(0, \test\db\Match::find_count(Q::match('BB YY')));
eq(1, \test\db\Match::find_count(Q::match('BBB III')));
eq(2, \test\db\Match::find_count(Q::match('EE II')));
eq(1, \test\db\Match::find_count(Q::match(30)));
eq(1, \test\db\Match::find_count(Q::match('BB　CC')));
// 全角スペース
eq(1, \test\db\Match::find_count(Q::match('BBB CCC', ['data3'])));

示例#18

文件： paginator.php 项目： tokushima/ebi

foreach (test\db\Paginator::find($paginator, \ebi\Q::order('id')) as $o) {
    $i++;
}
eq(20, $i);
$i = 0;
$paginator = new \ebi\Paginator(20, 4);
foreach (test\db\Paginator::find($paginator, \ebi\Q::order('id')) as $o) {
    $i++;
}
eq(20, $i);
$i = 0;
$paginator = new \ebi\Paginator(20, 5);
foreach (test\db\Paginator::find($paginator, \ebi\Q::order('id')) as $o) {
    $i++;
}
eq(18, $i);
$i = 0;
$paginator = new \ebi\Paginator(20, 6);
foreach (test\db\Paginator::find($paginator, \ebi\Q::order('id')) as $o) {
    $i++;
}
eq(0, $i);
$i = 0;
$req = new \ebi\Request();
$req->vars('paginate_by', 30);
// 30を指定してもmax25なので25まで
$paginator = \ebi\Paginator::request($req, 20, 25);
foreach (test\db\Paginator::find($paginator, \ebi\Q::order('id')) as $o) {
    $i++;
}
eq(25, $i);

示例#19

文件： find.php 项目： tokushima/ebi

    }
}
neq(10, $c);
$result = \test\db\Find::find_all(Q::ob(Q::b(Q::eq('value1', 'abc')), Q::b(Q::eq('value2', 'EDC'))));
eq(2, sizeof($result));
eq('EDC', \test\db\Find::find_get(Q::eq('value1', 'jkl'))->value2());
$i = 0;
$r = array('abc', 'def', 'ghi', 'jkl');
foreach (\test\db\RefFind::find() as $obj) {
    eq(isset($r[$i]) ? $r[$i] : null, $obj->value());
    $i++;
}
eq(4, $i);
$i = 0;
$r = array('abc', 'def', 'ghi');
foreach (\test\db\RefRefFind::find() as $obj) {
    eq(isset($r[$i]) ? $r[$i] : null, $obj->value());
    $i++;
}
eq(3, $i);
$i = 0;
$r = array('abc', 'def', 'ghi', 'jkl');
foreach (\test\db\HasFind::find() as $obj) {
    eq(isset($r[$i]) ? $r[$i] : null, $obj->parent()->value1());
    $i++;
}
eq(4, $i);
$result = \test\db\Find::find_all(Q::in('value1', \test\db\SubFind::find_sub('value')));
eq(4, sizeof($result));
$result = \test\db\Find::find_all(Q::in('value1', \test\db\SubFind::find_sub('value', Q::lt('order', 3))));
eq(2, sizeof($result));

示例#20

文件： xml.php 项目： tokushima/ebi

<?php

use ebi\Q;
\test\db\Find::find_delete();
(new \test\db\Find())->order(1)->value1('aaa')->value2('AAA')->updated('2014/10/04')->save();
(new \test\db\Find())->order(3)->value1('ccc')->value2('CCC')->updated('2014/10/06')->save();
(new \test\db\Find())->order(2)->value1('bbb')->value2('BBB')->updated('2014/10/05')->save();
$object_list = \test\db\Find::find_all(Q::order('order'));
eq('<object_list>' . '<Find><order>1</order><value1>aaa</value1><value2>AAA</value2><updated>2014-10-04T00:00:00+09:00</updated></Find>' . '<Find><order>2</order><value1>bbb</value1><value2>BBB</value2><updated>2014-10-05T00:00:00+09:00</updated></Find>' . '<Find><order>3</order><value1>ccc</value1><value2>CCC</value2><updated>2014-10-06T00:00:00+09:00</updated></Find>' . '</object_list>', (new \ebi\Xml('object_list', $object_list))->get());

示例#21

文件： avg.php 项目： tokushima/ebi

<?php

use ebi\Q;
\test\db\Calc::create_table();
\test\db\Calc::find_delete();
(new \test\db\Calc())->float(1.5)->type('A')->save();
(new \test\db\Calc())->float(1.3)->type('A')->save();
(new \test\db\Calc())->float(1.1)->type('B')->save();
eq(1.3, \test\db\Calc::find_avg('float'));
eq(1.4, \test\db\Calc::find_avg('float', Q::eq('type', 'A')));
eq(array('A' => 1.4, 'B' => 1.1), \test\db\Calc::find_avg_by('float', 'type'));
eq(array('A' => 1.4), \test\db\Calc::find_avg_by('float', 'type', Q::eq('type', 'A')));
\test\db\Calc::find_delete();
(new \test\db\Calc())->price(1)->type('A')->save();
(new \test\db\Calc())->price(2)->type('A')->save();
(new \test\db\Calc())->price(3)->type('B')->save();
eq(2, \test\db\Calc::find_avg('price'));
eq(1.5, \test\db\Calc::find_avg('price', Q::eq('type', 'A')));
eq(array('A' => 1.5, 'B' => 3), \test\db\Calc::find_avg_by('price', 'type'));
eq(array('A' => 1.5), \test\db\Calc::find_avg_by('price', 'type', Q::eq('type', 'A')));
eq(0, \test\db\Calc::find_avg('type'));
eq(0, \test\db\Calc::find_avg('type', Q::eq('type', 'A')));