|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
namespace BaoPham\DynamoDb\Parsers; |
|
4
|
|
|
|
|
5
|
|
|
use BaoPham\DynamoDb\ComparisonOperator; |
|
6
|
|
|
use BaoPham\DynamoDb\NotSupportedException; |
|
7
|
|
|
use BaoPham\DynamoDb\Facades\DynamoDb; |
|
8
|
|
|
|
|
9
|
|
|
class ConditionExpression |
|
10
|
|
|
{ |
|
11
|
|
|
const OPERATORS = [ |
|
12
|
|
|
ComparisonOperator::EQ => '%s = :%s', |
|
13
|
|
|
ComparisonOperator::LE => '%s <= :%s', |
|
14
|
|
|
ComparisonOperator::LT => '%s < :%s', |
|
15
|
|
|
ComparisonOperator::GE => '%s >= :%s', |
|
16
|
|
|
ComparisonOperator::GT => '%s > :%s', |
|
17
|
|
|
ComparisonOperator::BEGINS_WITH => 'begins_with(%s, :%s)', |
|
18
|
|
|
ComparisonOperator::BETWEEN => '(%s BETWEEN :%s AND :%s)', |
|
19
|
|
|
ComparisonOperator::CONTAINS => 'contains(%s, :%s)', |
|
20
|
|
|
ComparisonOperator::NOT_CONTAINS => 'NOT contains(%s, :%s)', |
|
21
|
|
|
ComparisonOperator::NULL => 'attribute_not_exists(%s)', |
|
22
|
|
|
ComparisonOperator::NOT_NULL => 'attribute_exists(%s)', |
|
23
|
|
|
ComparisonOperator::NE => '%s <> :%s', |
|
24
|
|
|
ComparisonOperator::IN => '%s IN (%s)', |
|
25
|
|
|
]; |
|
26
|
|
|
|
|
27
|
|
|
/** |
|
28
|
|
|
* @var ExpressionAttributeValues |
|
29
|
|
|
*/ |
|
30
|
|
|
protected $values; |
|
31
|
|
|
|
|
32
|
|
|
/** |
|
33
|
|
|
* @var ExpressionAttributeNames |
|
34
|
|
|
*/ |
|
35
|
|
|
protected $names; |
|
36
|
|
|
|
|
37
|
|
|
/** |
|
38
|
|
|
* @var Placeholder |
|
39
|
|
|
*/ |
|
40
|
|
|
protected $placeholder; |
|
41
|
|
|
|
|
42
|
117 |
|
public function __construct( |
|
43
|
|
|
Placeholder $placeholder, |
|
44
|
|
|
ExpressionAttributeValues $values, |
|
45
|
|
|
ExpressionAttributeNames $names |
|
46
|
|
|
) { |
|
47
|
117 |
|
$this->placeholder = $placeholder; |
|
48
|
117 |
|
$this->values = $values; |
|
49
|
117 |
|
$this->names = $names; |
|
50
|
117 |
|
} |
|
51
|
|
|
|
|
52
|
|
|
/** |
|
53
|
|
|
* @param array $where |
|
54
|
|
|
* [ |
|
55
|
|
|
* 'column' => 'name', |
|
56
|
|
|
* 'type' => 'EQ', |
|
57
|
|
|
* 'value' => 'foo', |
|
58
|
|
|
* 'boolean' => 'and', |
|
59
|
|
|
* ] |
|
60
|
|
|
* |
|
61
|
|
|
* @return string |
|
62
|
|
|
* @throws NotSupportedException |
|
63
|
|
|
*/ |
|
64
|
70 |
|
public function parse($where) |
|
65
|
|
|
{ |
|
66
|
70 |
|
if (empty($where)) { |
|
67
|
|
|
return ''; |
|
68
|
|
|
} |
|
69
|
|
|
|
|
70
|
70 |
|
$parsed = []; |
|
71
|
|
|
|
|
72
|
70 |
|
foreach ($where as $condition) { |
|
73
|
70 |
|
$boolean = array_get($condition, 'boolean'); |
|
74
|
70 |
|
$value = array_get($condition, 'value'); |
|
75
|
70 |
|
$type = array_get($condition, 'type'); |
|
76
|
|
|
|
|
77
|
70 |
|
$prefix = ''; |
|
78
|
|
|
|
|
79
|
70 |
|
if (count($parsed) > 0) { |
|
80
|
44 |
|
$prefix = strtoupper($boolean) . ' '; |
|
81
|
|
|
} |
|
82
|
|
|
|
|
83
|
70 |
|
if ($type === 'Nested') { |
|
84
|
3 |
|
$parsed[] = $prefix . $this->parseNestedCondition($value); |
|
85
|
3 |
|
continue; |
|
86
|
|
|
} |
|
87
|
|
|
|
|
88
|
70 |
|
$parsed[] = $prefix . $this->parseCondition( |
|
89
|
70 |
|
array_get($condition, 'column'), |
|
90
|
70 |
|
$type, |
|
91
|
70 |
|
$value |
|
92
|
|
|
); |
|
93
|
|
|
} |
|
94
|
|
|
|
|
95
|
70 |
|
return implode(' ', $parsed); |
|
96
|
|
|
} |
|
97
|
|
|
|
|
98
|
112 |
|
public function reset() |
|
99
|
|
|
{ |
|
100
|
112 |
|
$this->placeholder->reset(); |
|
101
|
112 |
|
$this->names->reset(); |
|
102
|
112 |
|
$this->values->reset(); |
|
103
|
112 |
|
} |
|
104
|
|
|
|
|
105
|
63 |
|
protected function getSupportedOperators() |
|
106
|
|
|
{ |
|
107
|
63 |
|
return static::OPERATORS; |
|
108
|
|
|
} |
|
109
|
|
|
|
|
110
|
3 |
|
protected function parseNestedCondition(array $conditions) |
|
111
|
|
|
{ |
|
112
|
3 |
|
return '(' . $this->parse($conditions) . ')'; |
|
113
|
|
|
} |
|
114
|
|
|
|
|
115
|
70 |
|
protected function parseCondition($name, $operator, $value) |
|
116
|
|
|
{ |
|
117
|
70 |
|
$operators = $this->getSupportedOperators(); |
|
118
|
|
|
|
|
119
|
70 |
|
if (empty($operators[$operator])) { |
|
120
|
|
|
throw new NotSupportedException("$operator is not supported"); |
|
121
|
|
|
} |
|
122
|
|
|
|
|
123
|
70 |
|
$template = $operators[$operator]; |
|
124
|
|
|
|
|
125
|
70 |
|
$this->names->set($name); |
|
126
|
|
|
|
|
127
|
70 |
|
if ($operator === ComparisonOperator::BETWEEN) { |
|
128
|
3 |
|
return $this->parseBetweenCondition($name, $value, $template); |
|
129
|
|
|
} |
|
130
|
|
|
|
|
131
|
68 |
|
if ($operator === ComparisonOperator::IN) { |
|
132
|
3 |
|
return $this->parseInCondition($name, $value, $template); |
|
133
|
|
|
} |
|
134
|
|
|
|
|
135
|
66 |
|
if ($operator === ComparisonOperator::NULL || $operator === ComparisonOperator::NOT_NULL) { |
|
136
|
5 |
|
return $this->parseNullCondition($name, $template); |
|
137
|
|
|
} |
|
138
|
|
|
|
|
139
|
62 |
|
$placeholder = $this->placeholder->next(); |
|
140
|
|
|
|
|
141
|
62 |
|
$this->values->set($placeholder, DynamoDb::marshalValue($value)); |
|
142
|
|
|
|
|
143
|
62 |
|
return sprintf($template, $this->names->placeholder($name), $placeholder); |
|
144
|
|
|
} |
|
145
|
|
|
|
|
146
|
3 |
|
protected function parseBetweenCondition($name, $value, $template) |
|
147
|
|
|
{ |
|
148
|
3 |
|
$first = $this->placeholder->next(); |
|
149
|
|
|
|
|
150
|
3 |
|
$second = $this->placeholder->next(); |
|
151
|
|
|
|
|
152
|
3 |
|
$this->values->set($first, DynamoDb::marshalValue($value[0])); |
|
153
|
|
|
|
|
154
|
3 |
|
$this->values->set($second, DynamoDb::marshalValue($value[1])); |
|
155
|
|
|
|
|
156
|
3 |
|
return sprintf($template, $this->names->placeholder($name), $first, $second); |
|
157
|
|
|
} |
|
158
|
|
|
|
|
159
|
3 |
|
protected function parseInCondition($name, $value, $template) |
|
160
|
|
|
{ |
|
161
|
3 |
|
$valuePlaceholders = []; |
|
162
|
|
|
|
|
163
|
3 |
|
foreach ($value as $item) { |
|
164
|
3 |
|
$placeholder = $this->placeholder->next(); |
|
165
|
|
|
|
|
166
|
3 |
|
$valuePlaceholders[] = ":" . $placeholder; |
|
167
|
|
|
|
|
168
|
3 |
|
$this->values->set($placeholder, DynamoDb::marshalValue($item)); |
|
169
|
|
|
} |
|
170
|
|
|
|
|
171
|
3 |
|
return sprintf($template, $this->names->placeholder($name), implode(', ', $valuePlaceholders)); |
|
172
|
|
|
} |
|
173
|
|
|
|
|
174
|
5 |
|
protected function parseNullCondition($name, $template) |
|
175
|
|
|
{ |
|
176
|
5 |
|
return sprintf($template, $this->names->placeholder($name)); |
|
177
|
|
|
} |
|
178
|
|
|
} |
|
179
|
|
|
|
baopham /
laravel-dynamodb
