|
1
|
|
|
<?php |
|
2
|
|
|
namespace DAL; |
|
3
|
|
|
|
|
4
|
|
|
class SqlStatementBuilder |
|
5
|
|
|
{ |
|
6
|
|
|
|
|
7
|
|
|
public $bindings; |
|
8
|
|
|
public $queries; |
|
9
|
|
|
|
|
10
|
24 |
|
public function __construct() |
|
11
|
|
|
{ |
|
12
|
24 |
|
$this->bindings = []; |
|
13
|
24 |
|
$this->queries = []; |
|
14
|
24 |
|
} |
|
15
|
|
|
|
|
16
|
5 |
|
public function create($table, $fields) |
|
17
|
|
|
{ |
|
18
|
5 |
|
$query = 'insert into ' . $table . '('; |
|
19
|
|
|
|
|
20
|
|
|
$setValues = $this->compileFields($fields, function () { |
|
21
|
5 |
|
return '?'; |
|
22
|
5 |
|
}); |
|
23
|
|
|
|
|
24
|
5 |
|
$segmentFields = implode(', ', array_keys($fields)); |
|
25
|
5 |
|
$segmentValues = implode(', ', $setValues); |
|
26
|
|
|
|
|
27
|
5 |
|
$this->queries[] = $query . $segmentFields . ') values(' . $segmentValues . ')'; |
|
28
|
5 |
|
} |
|
29
|
|
|
|
|
30
|
3 |
|
public function update($table, array $fields, Condition $criteria = null, $limit = null) |
|
31
|
|
|
{ |
|
32
|
3 |
|
$limitPart = ''; |
|
33
|
3 |
|
if (null !== $limit) { |
|
34
|
|
|
$limitPart = ' limit ' . $limit; |
|
35
|
|
|
} |
|
36
|
|
|
|
|
37
|
3 |
|
$query = 'update ' . $table . ' set '; |
|
38
|
|
|
|
|
39
|
3 |
|
$setValues = $this->compileFields($fields, function ($field) { |
|
40
|
3 |
|
return $field . ' = ?'; |
|
41
|
3 |
|
}); |
|
42
|
|
|
|
|
43
|
3 |
|
$this->queries[] = $query . implode(', ', $setValues) |
|
44
|
3 |
|
. $this->getWhereClause($criteria) |
|
45
|
3 |
|
. $limitPart; |
|
46
|
3 |
|
} |
|
47
|
|
|
|
|
48
|
3 |
|
public function delete($table, Condition $criteria = null) |
|
49
|
|
|
{ |
|
50
|
3 |
|
$this->queries[] = 'delete from ' . $table . $this->getWhereClause($criteria); |
|
51
|
3 |
|
} |
|
52
|
|
|
|
|
53
|
13 |
|
public function select(array $columns, $table, Condition $criteria = null, $limit = null) |
|
54
|
|
|
{ |
|
55
|
13 |
|
$limitPart = ''; |
|
56
|
13 |
|
if (null !== $limit) { |
|
57
|
4 |
|
$limitPart = ' limit ' . $limit; |
|
58
|
4 |
|
} |
|
59
|
|
|
|
|
60
|
13 |
|
$query = 'select ' . implode(', ', $columns) |
|
61
|
13 |
|
. ' from ' . $table |
|
62
|
13 |
|
. $this->getWhereClause($criteria) |
|
63
|
13 |
|
. $limitPart; |
|
64
|
|
|
|
|
65
|
13 |
|
$this->queries[] = $query; |
|
66
|
13 |
|
} |
|
67
|
|
|
|
|
68
|
|
|
/** |
|
69
|
|
|
* @param array $fields |
|
70
|
|
|
* @param callable $iterationCallback |
|
71
|
|
|
*/ |
|
72
|
8 |
|
private function compileFields(array $fields, $iterationCallback) |
|
73
|
|
|
{ |
|
74
|
8 |
|
$index = 0; |
|
75
|
8 |
|
$compiled = []; |
|
76
|
8 |
|
foreach ($fields as $field => $value) { |
|
77
|
8 |
|
++$index; |
|
78
|
8 |
|
$this->bindings[] = $value; |
|
79
|
|
|
|
|
80
|
8 |
|
$compiled[] = call_user_func($iterationCallback, $field); |
|
81
|
8 |
|
} |
|
82
|
8 |
|
return $compiled; |
|
83
|
|
|
} |
|
84
|
|
|
|
|
85
|
19 |
|
private function getWhereClause(Condition $criteria = null) |
|
86
|
|
|
{ |
|
87
|
19 |
|
if (null !== $criteria) { |
|
88
|
17 |
|
return ' where ' . $this->compileCondition($criteria); |
|
89
|
|
|
} |
|
90
|
2 |
|
return null; |
|
91
|
|
|
} |
|
92
|
|
|
|
|
93
|
|
|
/** |
|
94
|
|
|
* @param string $value |
|
95
|
|
|
* @param boolean $shouldEscape |
|
96
|
|
|
* |
|
97
|
|
|
* @return string |
|
98
|
|
|
*/ |
|
99
|
17 |
|
private function processValue($value, $shouldEscape) |
|
100
|
|
|
{ |
|
101
|
17 |
|
if ($value instanceof Condition) { |
|
102
|
|
|
$value = '(' . $this->compileCondition($value) . ')'; |
|
103
|
17 |
|
} elseif ($shouldEscape) { |
|
104
|
17 |
|
$this->bindings[] = $value; |
|
105
|
|
|
|
|
106
|
17 |
|
$value = '?'; |
|
107
|
17 |
|
} |
|
108
|
17 |
|
return $value; |
|
109
|
|
|
} |
|
110
|
|
|
|
|
111
|
17 |
|
private function compileCondition(Condition $criteria = null) |
|
112
|
|
|
{ |
|
113
|
17 |
|
if (null === $criteria) { |
|
114
|
|
|
return null; |
|
115
|
|
|
} |
|
116
|
17 |
|
$operator = $criteria->getOperator(); |
|
117
|
17 |
|
if ('regex' === $operator) { |
|
118
|
|
|
$operator = 'regexp'; |
|
119
|
|
|
} |
|
120
|
|
|
|
|
121
|
|
|
$segments = [ |
|
122
|
17 |
|
$this->processValue($criteria->getLeft(), $criteria->shouldEscapeLeft()), |
|
123
|
17 |
|
$operator, |
|
124
|
17 |
|
$this->processValue($criteria->getRight(), $criteria->shouldEscapeRight()) |
|
125
|
17 |
|
]; |
|
126
|
|
|
|
|
127
|
17 |
|
return implode(' ', $segments); |
|
128
|
|
|
} |
|
129
|
|
|
} |
|
130
|
|
|
|
wafflesystems /
dal
