|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
namespace Godsgood33\Php_Db; |
|
4
|
|
|
|
|
5
|
|
|
use InvalidArgumentException; |
|
6
|
|
|
|
|
7
|
|
|
/** |
|
8
|
|
|
* Class to store field values |
|
9
|
|
|
* |
|
10
|
|
|
* @property string $field |
|
11
|
|
|
* The database field name |
|
12
|
|
|
* @property string $table |
|
13
|
|
|
* The database table link |
|
14
|
|
|
* @property string $alias |
|
15
|
|
|
* The field alias if desired |
|
16
|
|
|
* |
|
17
|
|
|
* @author Ryan Prather <[email protected]> |
|
18
|
|
|
*/ |
|
19
|
|
|
class DBField |
|
20
|
|
|
{ |
|
21
|
|
|
/** |
|
22
|
|
|
* Class properties |
|
23
|
|
|
* |
|
24
|
|
|
* @var array |
|
25
|
|
|
*/ |
|
26
|
|
|
private array $data = [ |
|
27
|
|
|
'field' => '', |
|
28
|
|
|
'table' => '', |
|
29
|
|
|
'alias' => '', |
|
30
|
|
|
]; |
|
31
|
|
|
|
|
32
|
|
|
/** |
|
33
|
|
|
* Constructor |
|
34
|
|
|
* |
|
35
|
|
|
* @param string $field |
|
36
|
|
|
* The parameter field name to return |
|
37
|
|
|
* @param string $table |
|
38
|
|
|
* The parameter representing the table (can be an alias) |
|
39
|
|
|
* @param string $alias |
|
40
|
|
|
* The parameter representing the alias the field should be known as (e.g. " `name` AS 'full_name'") |
|
41
|
|
|
* |
|
42
|
|
|
* @throws InvalidArgumentException |
|
43
|
|
|
*/ |
|
44
|
|
|
public function __construct(string $field = '*', string $table = '', string $alias = '') |
|
45
|
|
|
{ |
|
46
|
|
|
if (preg_match("/[^A-Za-z0-9_\*]/", $field)) { |
|
47
|
|
|
throw new InvalidArgumentException("Invalid field name $field"); |
|
48
|
|
|
} elseif (preg_match("/[^A-Za-z0-9_]/", $table)) { |
|
49
|
|
|
throw new InvalidArgumentException("Invalid table name $table"); |
|
50
|
|
|
} elseif (preg_match("/[^A-Za-z0-9_]/", $alias)) { |
|
51
|
|
|
throw new InvalidArgumentException("Invalid alias $alias"); |
|
52
|
|
|
} |
|
53
|
|
|
|
|
54
|
|
|
$this->data['field'] = $field; |
|
55
|
|
|
$this->data['table'] = $table; |
|
56
|
|
|
$this->data['alias'] = $alias; |
|
57
|
|
|
} |
|
58
|
|
|
|
|
59
|
|
|
/** |
|
60
|
|
|
* Magic method to turn the class into a string |
|
61
|
|
|
* |
|
62
|
|
|
* @return string |
|
63
|
|
|
*/ |
|
64
|
|
|
public function __toString(): string |
|
65
|
|
|
{ |
|
66
|
|
|
$ret = ($this->data['table'] ? $this->data['table'].'.' : ''). |
|
67
|
|
|
($this->data['field'] == '*' ? $this->data['field'] : "`{$this->data['field']}`"). |
|
68
|
|
|
($this->data['alias'] ? " AS '{$this->data['alias']}'" : ""); |
|
69
|
|
|
|
|
70
|
|
|
return $ret; |
|
71
|
|
|
} |
|
72
|
|
|
} |
|
73
|
|
|
|
godsgood33 /
php-db
