|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
namespace Yajra\Oci8\Schema; |
|
4
|
|
|
|
|
5
|
|
|
use Illuminate\Database\Connection; |
|
6
|
|
|
|
|
7
|
|
|
class Sequence |
|
8
|
|
|
{ |
|
9
|
|
|
/** |
|
10
|
|
|
* @var \Illuminate\Database\Connection|\Yajra\Oci8\Oci8Connection |
|
11
|
|
|
*/ |
|
12
|
|
|
protected $connection; |
|
13
|
|
|
|
|
14
|
|
|
/** |
|
15
|
|
|
* @param Connection $connection |
|
16
|
|
|
*/ |
|
17
|
3 |
|
public function __construct(Connection $connection) |
|
18
|
|
|
{ |
|
19
|
3 |
|
$this->connection = $connection; |
|
20
|
3 |
|
} |
|
21
|
|
|
|
|
22
|
|
|
/** |
|
23
|
|
|
* function to create oracle sequence. |
|
24
|
|
|
* |
|
25
|
|
|
* @param string $name |
|
26
|
|
|
* @param int $start |
|
27
|
|
|
* @param bool $nocache |
|
28
|
|
|
* @return bool |
|
29
|
|
|
*/ |
|
30
|
3 |
|
public function create($name, $start = 1, $nocache = false, $min = 1, $max = false, $increment = 1) |
|
31
|
|
|
{ |
|
32
|
3 |
|
if (! $name) { |
|
33
|
|
|
return false; |
|
34
|
|
|
} |
|
35
|
|
|
|
|
36
|
3 |
|
if ($this->connection->getConfig('prefix_schema')) { |
|
37
|
|
|
$name = $this->connection->getConfig('prefix_schema') . '.' . $name; |
|
38
|
3 |
|
} |
|
39
|
|
|
|
|
40
|
|
|
$nocache = $nocache ? 'nocache' : ''; |
|
41
|
|
|
|
|
42
|
|
|
$max = $max ? " maxvalue {$max}" : ""; |
|
43
|
|
|
|
|
44
|
|
|
$sequence_stmt = "create sequence {$name} minvalue {$min} {$max} start with {$start} increment by {$increment} {$nocache}"; |
|
45
|
|
|
|
|
46
|
|
|
return $this->connection->statement($sequence_stmt); |
|
47
|
|
|
|
|
48
|
|
|
} |
|
49
|
|
|
|
|
50
|
|
|
/** |
|
51
|
|
|
* function to safely drop sequence db object. |
|
52
|
|
|
* |
|
53
|
|
|
* @param string $name |
|
54
|
|
|
* @return bool |
|
55
|
|
|
*/ |
|
56
|
|
|
public function drop($name) |
|
57
|
|
|
{ |
|
58
|
|
|
// check if a valid name and sequence exists |
|
59
|
|
|
if (! $name || ! $this->exists($name)) { |
|
60
|
|
|
return false; |
|
61
|
|
|
} |
|
62
|
|
|
|
|
63
|
|
|
return $this->connection->statement(" |
|
64
|
|
|
declare |
|
65
|
|
|
e exception; |
|
66
|
|
|
pragma exception_init(e,-02289); |
|
67
|
|
|
begin |
|
68
|
|
|
execute immediate 'drop sequence {$name}'; |
|
69
|
|
|
exception |
|
70
|
|
|
when e then |
|
71
|
|
|
null; |
|
72
|
|
|
end;"); |
|
73
|
|
|
} |
|
74
|
|
|
|
|
75
|
|
|
/** |
|
76
|
|
|
* function to check if sequence exists. |
|
77
|
|
|
* |
|
78
|
|
|
* @param string $name |
|
79
|
|
|
* @return bool |
|
80
|
|
|
*/ |
|
81
|
|
|
public function exists($name) |
|
82
|
|
|
{ |
|
83
|
|
|
if (! $name) { |
|
84
|
|
|
return false; |
|
85
|
|
|
} |
|
86
|
|
|
|
|
87
|
|
|
return $this->connection->selectOne( |
|
88
|
|
|
"select * from all_sequences where sequence_name=upper('{$name}') and sequence_owner=upper(user)" |
|
89
|
|
|
); |
|
90
|
|
|
} |
|
91
|
|
|
|
|
92
|
|
|
/** |
|
93
|
|
|
* get sequence next value. |
|
94
|
|
|
* |
|
95
|
|
|
* @param string $name |
|
96
|
|
|
* @return int |
|
97
|
|
|
*/ |
|
98
|
|
|
public function nextValue($name) |
|
99
|
|
|
{ |
|
100
|
|
|
if (! $name) { |
|
101
|
|
|
return 0; |
|
102
|
|
|
} |
|
103
|
|
|
|
|
104
|
|
|
return $this->connection->selectOne("SELECT $name.NEXTVAL as id FROM DUAL")->id; |
|
105
|
|
|
} |
|
106
|
|
|
|
|
107
|
|
|
/** |
|
108
|
|
|
* same function as lastInsertId. added for clarity with oracle sql statement. |
|
109
|
|
|
* |
|
110
|
|
|
* @param string $name |
|
111
|
|
|
* @return int |
|
112
|
|
|
*/ |
|
113
|
|
|
public function currentValue($name) |
|
114
|
|
|
{ |
|
115
|
|
|
return $this->lastInsertId($name); |
|
116
|
|
|
} |
|
117
|
|
|
|
|
118
|
|
|
/** |
|
119
|
|
|
* function to get oracle sequence last inserted id. |
|
120
|
|
|
* |
|
121
|
|
|
* @param string $name |
|
122
|
|
|
* @return int |
|
123
|
|
|
*/ |
|
124
|
|
|
public function lastInsertId($name) |
|
125
|
|
|
{ |
|
126
|
|
|
// check if a valid name and sequence exists |
|
127
|
|
|
if (! $name || ! $this->exists($name)) { |
|
128
|
|
|
return 0; |
|
129
|
|
|
} |
|
130
|
|
|
|
|
131
|
|
|
return $this->connection->selectOne("select {$name}.currval as id from dual")->id; |
|
132
|
|
|
} |
|
133
|
|
|
} |
|
134
|
|
|
|
yajra /
laravel-oci8
