|
1
|
|
|
<?php |
|
2
|
|
|
/** |
|
3
|
|
|
* Class DialectAbstract |
|
4
|
|
|
* |
|
5
|
|
|
* @filesource DialectAbstract.php |
|
6
|
|
|
* @created 11.01.2018 |
|
7
|
|
|
* @package chillerlan\Database\Dialects |
|
8
|
|
|
* @author Smiley <[email protected]> |
|
9
|
|
|
* @copyright 2018 Smiley |
|
10
|
|
|
* @license MIT |
|
11
|
|
|
*/ |
|
12
|
|
|
|
|
13
|
|
|
namespace chillerlan\Database\Dialects; |
|
14
|
|
|
|
|
15
|
|
|
use chillerlan\Database\Query\QueryException; |
|
16
|
|
|
|
|
17
|
|
|
/** |
|
18
|
|
|
* please don't look at it |
|
19
|
|
|
* |
|
20
|
|
|
* @link https://en.wikibooks.org/wiki/SQL_Dialects_Reference |
|
21
|
|
|
* @link https://en.wikibooks.org/wiki/Converting_MySQL_to_PostgreSQL |
|
22
|
|
|
*/ |
|
23
|
|
|
abstract class DialectAbstract implements Dialect{ |
|
24
|
|
|
|
|
25
|
|
|
/** |
|
26
|
|
|
* @var string[] |
|
27
|
|
|
*/ |
|
28
|
|
|
protected array $quotes = ['"', '"']; |
|
29
|
|
|
|
|
30
|
|
|
/** |
|
31
|
|
|
* @var string |
|
32
|
|
|
*/ |
|
33
|
|
|
protected string $charset = 'utf8'; |
|
34
|
|
|
|
|
35
|
|
|
/** @inheritdoc */ |
|
36
|
|
|
public function select(array $cols, array $from, string $where = null, $limit = null, $offset = null, bool $distinct = null, array $groupby = null, array $orderby = null):array{ |
|
37
|
|
|
$sql = ['SELECT']; |
|
38
|
|
|
|
|
39
|
|
|
if($distinct){ |
|
40
|
|
|
$sql[] = 'DISTINCT'; |
|
41
|
|
|
} |
|
42
|
|
|
|
|
43
|
|
|
!empty($cols) |
|
44
|
|
|
? $sql[] = implode(', ', $cols) |
|
45
|
|
|
: $sql[] = '*'; |
|
46
|
|
|
|
|
47
|
|
|
$sql[] = 'FROM'; |
|
48
|
|
|
$sql[] = implode(', ', $from); |
|
49
|
|
|
$sql[] = $where; |
|
50
|
|
|
|
|
51
|
|
|
if(!empty($groupby)){ |
|
52
|
|
|
$sql[] = 'GROUP BY'; |
|
53
|
|
|
$sql[] = implode(', ', $groupby); |
|
54
|
|
|
} |
|
55
|
|
|
|
|
56
|
|
|
if(!empty($orderby)){ |
|
57
|
|
|
$sql[] = 'ORDER BY'; |
|
58
|
|
|
$sql[] = implode(', ', $orderby); |
|
59
|
|
|
} |
|
60
|
|
|
|
|
61
|
|
|
if($limit !== null){ |
|
62
|
|
|
$sql[] = 'LIMIT'; |
|
63
|
|
|
$sql[] = $offset !== null ? '?, ?' : '?'; |
|
64
|
|
|
} |
|
65
|
|
|
|
|
66
|
|
|
return $sql; |
|
67
|
|
|
} |
|
68
|
|
|
|
|
69
|
|
|
/** @inheritdoc */ |
|
70
|
|
|
public function insert(string $table, array $fields, string $onConflict = null, string $conflictTarget = null):array{ |
|
71
|
|
|
$sql = ['INSERT INTO']; |
|
72
|
|
|
$sql[] = $this->quote($table); |
|
73
|
|
|
$sql[] = '('.$this->quotes[0].implode($this->quotes[1].', '.$this->quotes[0], $fields).$this->quotes[1].')'; |
|
74
|
|
|
$sql[] = 'VALUES'; |
|
75
|
|
|
$sql[] = '('.implode(',', array_fill(0, count($fields), '?')).')'; |
|
76
|
|
|
|
|
77
|
|
|
return $sql; |
|
78
|
|
|
} |
|
79
|
|
|
|
|
80
|
|
|
/** @inheritdoc */ |
|
81
|
|
|
public function update(string $table, array $set, string $where):array{ |
|
82
|
|
|
$sql = ['UPDATE']; |
|
83
|
|
|
$sql[] = $this->quote($table); |
|
84
|
|
|
$sql[] = 'SET'; |
|
85
|
|
|
$sql[] = implode(', ', $set); |
|
86
|
|
|
$sql[] = $where; |
|
87
|
|
|
|
|
88
|
|
|
return $sql; |
|
89
|
|
|
} |
|
90
|
|
|
|
|
91
|
|
|
/** @inheritdoc */ |
|
92
|
|
|
public function delete(string $table, string $where):array{ |
|
93
|
|
|
$sql = ['DELETE FROM']; |
|
94
|
|
|
$sql[] = $this->quote($table); |
|
95
|
|
|
$sql[] = $where; |
|
96
|
|
|
|
|
97
|
|
|
return $sql; |
|
98
|
|
|
} |
|
99
|
|
|
|
|
100
|
|
|
/** @inheritdoc */ |
|
101
|
|
|
public function createDatabase(string $dbname, bool $ifNotExists = null, string $collate = null):array{ |
|
102
|
|
|
throw new QueryException('not supported'); |
|
103
|
|
|
} |
|
104
|
|
|
|
|
105
|
|
|
/** @inheritdoc */ |
|
106
|
|
|
public function quote(string $str):string{ // @todo: fixme |
|
107
|
|
|
return $this->quotes[0].implode($this->quotes[1].'.'.$this->quotes[0], explode('.', $str)).$this->quotes[1]; |
|
108
|
|
|
} |
|
109
|
|
|
|
|
110
|
|
|
/** @inheritdoc */ |
|
111
|
|
|
public function dropDatabase(string $dbname, bool $ifExists){ |
|
112
|
|
|
$sql = ['DROP DATABASE']; |
|
113
|
|
|
|
|
114
|
|
|
if($ifExists){ |
|
115
|
|
|
$sql[] = 'IF EXISTS'; |
|
116
|
|
|
} |
|
117
|
|
|
|
|
118
|
|
|
$sql[] = $this->quote($dbname); |
|
119
|
|
|
|
|
120
|
|
|
return $sql; |
|
121
|
|
|
} |
|
122
|
|
|
|
|
123
|
|
|
/** @inheritdoc */ |
|
124
|
|
|
public function dropTable(string $table, bool $ifExists):array{ |
|
125
|
|
|
$sql = ['DROP TABLE']; |
|
126
|
|
|
|
|
127
|
|
|
if($ifExists){ |
|
128
|
|
|
$sql[] = 'IF EXISTS'; |
|
129
|
|
|
} |
|
130
|
|
|
|
|
131
|
|
|
$sql[] = $this->quote($table); |
|
132
|
|
|
|
|
133
|
|
|
return $sql; |
|
134
|
|
|
} |
|
135
|
|
|
|
|
136
|
|
|
public function selectCount(array $from, string $where = null, bool $distinct = null, array $groupby = null){ |
|
137
|
|
|
$sql = ['SELECT']; |
|
138
|
|
|
|
|
139
|
|
|
if($distinct){ |
|
140
|
|
|
$sql[] = 'DISTINCT'; |
|
141
|
|
|
} |
|
142
|
|
|
|
|
143
|
|
|
$sql[] = 'COUNT(*) AS'; |
|
144
|
|
|
$sql[] = $this->quote('count'); |
|
145
|
|
|
$sql[] = 'FROM '.implode(', ', $from); |
|
146
|
|
|
$sql[] = $where; |
|
147
|
|
|
|
|
148
|
|
|
if(!empty($groupby)){ |
|
149
|
|
|
$sql[] = 'GROUP BY '; |
|
150
|
|
|
$sql[] = implode(', ', $groupby); |
|
151
|
|
|
} |
|
152
|
|
|
|
|
153
|
|
|
return $sql; |
|
154
|
|
|
} |
|
155
|
|
|
|
|
156
|
|
|
public function orderby(array $expressions):array { |
|
157
|
|
|
$orderby = []; |
|
158
|
|
|
|
|
159
|
|
|
foreach($expressions as $alias => $expression){ |
|
160
|
|
|
|
|
161
|
|
|
if(is_string($alias)){ |
|
162
|
|
|
|
|
163
|
|
|
if(is_array($expression)){ |
|
164
|
|
|
$dir = strtoupper($expression[0]); |
|
165
|
|
|
|
|
166
|
|
|
if(in_array($dir, ['ASC', 'DESC'], true)){ |
|
167
|
|
|
$orderby[] = isset($expression[1]) ? strtoupper($expression[1]).'('.$this->quote($alias).') '.$dir : $dir; |
|
168
|
|
|
} |
|
169
|
|
|
|
|
170
|
|
|
} |
|
171
|
|
|
else{ |
|
172
|
|
|
$dir = strtoupper($expression); |
|
173
|
|
|
|
|
174
|
|
|
if(in_array($dir, ['ASC', 'DESC'], true)){ |
|
175
|
|
|
$orderby[] = $this->quote($alias).' '.$dir; |
|
176
|
|
|
} |
|
177
|
|
|
|
|
178
|
|
|
} |
|
179
|
|
|
|
|
180
|
|
|
} |
|
181
|
|
|
else{ |
|
182
|
|
|
$orderby[] = $this->quote($expression); |
|
183
|
|
|
} |
|
184
|
|
|
|
|
185
|
|
|
} |
|
186
|
|
|
|
|
187
|
|
|
return $orderby; |
|
188
|
|
|
} |
|
189
|
|
|
|
|
190
|
|
|
/** @inheritdoc */ |
|
191
|
|
|
public function cols(array $expressions):array { |
|
192
|
|
|
|
|
193
|
|
|
// @todo: fixme, cleanup |
|
194
|
|
|
// errors on [alias => col, alias, alias => col...] |
|
195
|
|
|
$_col = function ($expr1, $expr2 = null, $func = null):string { |
|
196
|
|
|
switch(true){ |
|
197
|
|
|
case $expr2 && $func: |
|
198
|
|
|
$col = sprintf('%s(%s) AS %s', strtoupper($func), $expr1, $this->quote($expr2)); |
|
199
|
|
|
break; |
|
200
|
|
|
case $expr2 && !$func: |
|
201
|
|
|
$col = sprintf('%s AS %s', $this->quote($expr1), $this->quote($expr2)); |
|
202
|
|
|
break; |
|
203
|
|
|
case !$expr2 && $func: |
|
204
|
|
|
$col = sprintf('%s(%s)', strtoupper($func), $expr1); |
|
205
|
|
|
break; |
|
206
|
|
|
case !$expr2 && !$func: |
|
207
|
|
|
default: |
|
208
|
|
|
$col = $this->quote($expr1); |
|
209
|
|
|
} |
|
210
|
|
|
|
|
211
|
|
|
return $col; |
|
212
|
|
|
}; |
|
213
|
|
|
|
|
214
|
|
|
$r = []; |
|
215
|
|
|
|
|
216
|
|
|
foreach($expressions as $k => $ref){ |
|
217
|
|
|
if(is_string($k)){ |
|
218
|
|
|
$r[$ref[0] ?? $k] = is_array($ref) |
|
219
|
|
|
? $_col($ref[0], $k, $ref[1] ?? null) |
|
220
|
|
|
: $_col($ref, $k); |
|
221
|
|
|
} |
|
222
|
|
|
else{ |
|
223
|
|
|
$r[$ref] = is_array($ref) |
|
224
|
|
|
? $_col($ref[0], null, $ref[1] ?? null) |
|
225
|
|
|
: $_col($ref); |
|
226
|
|
|
} |
|
227
|
|
|
|
|
228
|
|
|
} |
|
229
|
|
|
|
|
230
|
|
|
return $r; |
|
231
|
|
|
} |
|
232
|
|
|
|
|
233
|
|
|
|
|
234
|
|
|
/** @inheritdoc */ |
|
235
|
|
|
public function from(array $expressions):array { |
|
236
|
|
|
|
|
237
|
|
|
$_from = function (string $table, string $ref = null):string { |
|
238
|
|
|
// @todo: quotes |
|
239
|
|
|
$from = $this->quote($table); |
|
240
|
|
|
|
|
241
|
|
|
if($ref){ |
|
242
|
|
|
$from = sprintf('%s AS %s', $this->quote($ref), $this->quote($table));// @todo: index hint |
|
243
|
|
|
} |
|
244
|
|
|
|
|
245
|
|
|
return $from; |
|
246
|
|
|
}; |
|
247
|
|
|
|
|
248
|
|
|
$r = []; |
|
249
|
|
|
|
|
250
|
|
|
foreach($expressions as $k => $ref){ |
|
251
|
|
|
|
|
252
|
|
|
if(is_string($k)){ |
|
253
|
|
|
$r[$ref ?? $k] = $_from($k, $ref); |
|
254
|
|
|
} |
|
255
|
|
|
else{ |
|
256
|
|
|
$x = explode(' ', $ref); |
|
257
|
|
|
|
|
258
|
|
|
if(count($x) === 2){ |
|
259
|
|
|
$r[$ref ?? $k] = $_from($x[0], $x[1]); |
|
260
|
|
|
} |
|
261
|
|
|
else{ |
|
262
|
|
|
$r[$ref] = $_from($ref); |
|
263
|
|
|
} |
|
264
|
|
|
} |
|
265
|
|
|
|
|
266
|
|
|
} |
|
267
|
|
|
|
|
268
|
|
|
return $r; |
|
269
|
|
|
} |
|
270
|
|
|
|
|
271
|
|
|
/** @inheritdoc */ |
|
272
|
|
|
public function enum(string $name, array $values, $defaultValue = null, bool $isNull = null):string { |
|
273
|
|
|
|
|
274
|
|
|
$field = $this->quote($name); |
|
275
|
|
|
$field .= 'ENUM (\''.implode('\', \'', $values).'\')'; |
|
276
|
|
|
|
|
277
|
|
|
if(is_bool($isNull)){ |
|
278
|
|
|
$field .= $isNull ? 'NULL' : 'NOT NULL'; |
|
279
|
|
|
} |
|
280
|
|
|
|
|
281
|
|
|
if(in_array($defaultValue, $values, true)){ |
|
282
|
|
|
$field .= 'DEFAULT '.(is_int($defaultValue) || is_float($defaultValue) ? $defaultValue : '\''.$defaultValue.'\''); |
|
283
|
|
|
} |
|
284
|
|
|
elseif($isNull && strtolower($defaultValue) === 'null'){ |
|
285
|
|
|
$field .= 'DEFAULT NULL'; |
|
286
|
|
|
} |
|
287
|
|
|
|
|
288
|
|
|
return $field; |
|
289
|
|
|
} |
|
290
|
|
|
|
|
291
|
|
|
/** @inheritdoc */ |
|
292
|
|
|
public function truncate(string $table):array{ |
|
293
|
|
|
$sql = ['TRUNCATE TABLE']; |
|
294
|
|
|
$sql[] = $this->quote($table); |
|
295
|
|
|
|
|
296
|
|
|
return $sql; |
|
297
|
|
|
} |
|
298
|
|
|
|
|
299
|
|
|
/** @inheritdoc */ |
|
300
|
|
|
public function showDatabases():array{ |
|
301
|
|
|
throw new QueryException('not supported'); |
|
302
|
|
|
} |
|
303
|
|
|
|
|
304
|
|
|
/** @inheritdoc */ |
|
305
|
|
|
public function showTables(string $database = null, string $pattern = null, string $where = null):array{ |
|
306
|
|
|
throw new QueryException('not supported'); |
|
307
|
|
|
} |
|
308
|
|
|
|
|
309
|
|
|
/** @inheritdoc */ |
|
310
|
|
|
public function showCreateTable(string $table):array{ |
|
311
|
|
|
throw new QueryException('not supported'); |
|
312
|
|
|
} |
|
313
|
|
|
|
|
314
|
|
|
} |
|
315
|
|
|
|
chillerlan /
php-database
