|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
/** |
|
4
|
|
|
* @author Jared King <[email protected]> |
|
5
|
|
|
* |
|
6
|
|
|
* @link http://jaredtking.com |
|
7
|
|
|
* |
|
8
|
|
|
* @copyright 2015 Jared King |
|
9
|
|
|
* @license MIT |
|
10
|
|
|
*/ |
|
11
|
|
|
namespace JAQB\Statement; |
|
12
|
|
|
|
|
13
|
|
|
class OrderStatement extends Statement |
|
14
|
|
|
{ |
|
15
|
|
|
protected $groupBy; |
|
16
|
|
|
protected $fields = []; |
|
17
|
|
|
|
|
18
|
|
|
/** |
|
19
|
|
|
* @param bool $groupBy when true, statement becomes a group by statement |
|
20
|
|
|
*/ |
|
21
|
|
|
public function __construct($groupBy = false) |
|
22
|
|
|
{ |
|
23
|
|
|
$this->groupBy = $groupBy; |
|
24
|
|
|
} |
|
25
|
|
|
|
|
26
|
|
|
/** |
|
27
|
|
|
* Tells whether this statement is a GROUP BY statement. |
|
28
|
|
|
* |
|
29
|
|
|
* @return bool true: is group by, false: is order by |
|
30
|
|
|
*/ |
|
31
|
|
|
public function isGroupBy() |
|
32
|
|
|
{ |
|
33
|
|
|
return $this->groupBy; |
|
34
|
|
|
} |
|
35
|
|
|
|
|
36
|
|
|
/** |
|
37
|
|
|
* Adds fields to this statement |
|
38
|
|
|
* Support input styles: |
|
39
|
|
|
* - addFields('field ASC,field2') |
|
40
|
|
|
* - addFields('field', 'ASC') |
|
41
|
|
|
* - addFields(['field','field2'], 'DESC') |
|
42
|
|
|
* - addFields([['field','ASC'], ['field2','ASC']]). |
|
43
|
|
|
* |
|
44
|
|
|
* @param string|array $fields |
|
45
|
|
|
* @param string $direction direction for fields where direction is unspecified (optional) |
|
46
|
|
|
* |
|
47
|
|
|
* @return self |
|
48
|
|
|
*/ |
|
49
|
|
|
public function addFields($fields, $direction = false) |
|
50
|
|
|
{ |
|
51
|
|
|
if (!is_array($fields)) { |
|
52
|
|
|
$fields = array_map(function ($f) { |
|
53
|
|
|
return trim($f); |
|
54
|
|
|
}, explode(',', $fields)); |
|
55
|
|
|
} |
|
56
|
|
|
|
|
57
|
|
|
foreach ($fields as $field) { |
|
58
|
|
|
if (!is_array($field)) { |
|
59
|
|
|
$field = explode(' ', trim($field)); |
|
60
|
|
|
} |
|
61
|
|
|
|
|
62
|
|
|
if (count($field) === 1 && $direction !== false) { |
|
63
|
|
|
$field[] = $direction; |
|
64
|
|
|
} |
|
65
|
|
|
|
|
66
|
|
|
// validate the direction |
|
67
|
|
|
if (count($field) === 1 || in_array(strtolower($field[1]), ['asc', 'desc'])) { |
|
68
|
|
|
$this->fields[] = $field; |
|
69
|
|
|
} |
|
70
|
|
|
} |
|
71
|
|
|
|
|
72
|
|
|
return $this; |
|
73
|
|
|
} |
|
74
|
|
|
|
|
75
|
|
|
/** |
|
76
|
|
|
* Gets the fields associated with this statement. |
|
77
|
|
|
* |
|
78
|
|
|
* @return array fields i.e. [['field1','ASC'], ['field2']] |
|
79
|
|
|
*/ |
|
80
|
|
|
public function getFields() |
|
81
|
|
|
{ |
|
82
|
|
|
return $this->fields; |
|
83
|
|
|
} |
|
84
|
|
|
|
|
85
|
|
|
/** |
|
86
|
|
|
* Generates the raw SQL string for the statement. |
|
87
|
|
|
* |
|
88
|
|
|
* @return string |
|
89
|
|
|
*/ |
|
90
|
|
|
public function build() |
|
91
|
|
|
{ |
|
92
|
|
|
$fields = $this->fields; |
|
93
|
|
|
foreach ($fields as &$field) { |
|
94
|
|
|
$field[0] = $this->escapeIdentifier($field[0]); |
|
95
|
|
|
$field = implode(' ', $field); |
|
96
|
|
|
} |
|
97
|
|
|
|
|
98
|
|
|
// remove empty values |
|
99
|
|
|
$fields = array_filter($fields); |
|
100
|
|
|
|
|
101
|
|
|
if (count($fields) == 0) { |
|
102
|
|
|
return ''; |
|
103
|
|
|
} |
|
104
|
|
|
|
|
105
|
|
|
return ((!$this->groupBy) ? 'ORDER BY ' : 'GROUP BY '). |
|
106
|
|
|
implode(',', $fields); |
|
107
|
|
|
} |
|
108
|
|
|
} |
|
109
|
|
|
|
jaredtking /
jaqb
