FazBrowse GitHub Viewer
|
Trending
|
URL:
|
Home
Tools:
[Download Repo ZIP]
[View Raw Code]
[Original HTTPS Page]
codeigniter-restserver/system/database/DB_cache.php at master · wave2future/codeigniter-restserver · GitHub
wave2future
codeigniter-restserver
Repository navigation
Code
Pull requests
Actions
Projects
Security and quality
Insights
Expand file tree
Breadcrumbs
codeigniter-restserver
/
system
/
database
/
DB_cache.php
Copy path
More file actions
More file actions
Latest commit
History
History
History
195 lines (158 loc) · 4.28 KB
Breadcrumbs
codeigniter-restserver
/
system
/
database
/
DB_cache.php
Copy path
File metadata and controls
195 lines (158 loc) · 4.28 KB
Raw
Copy raw file
Download raw file
Open symbols panel
Edit and raw actions
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
<?php
if
( !
defined
(
'
BASEPATH
'
))
exit
(
'
No direct script access allowed
'
);
/**
* CodeIgniter
*
* An open source application development framework for PHP 5.1.6 or newer
*
* @package CodeIgniter
* @author ExpressionEngine Dev Team
* @copyright Copyright (c) 2008 - 2011, EllisLab, Inc.
* @license http://codeigniter.com/user_guide/license.html
* @link http://codeigniter.com
* @since Version 1.0
* @filesource
*/
// ------------------------------------------------------------------------
/**
* Database Cache Class
*
* @category Database
* @author ExpressionEngine Dev Team
* @link http://codeigniter.com/user_guide/database/
*/
class
CI_DB_Cache {
var
$
CI
;
var
$
db
;
// allows passing of db object so that multiple database connections and returned db objects can be supported
/**
* Constructor
*
* Grabs the CI super object instance so we can access it.
*
*/
function
__construct
(&
$
db
)
{
// Assign the main CI object to $this->CI
// and load the file helper since we use it a lot
$
this
->
CI
=&
get_instance
();
$
this
->
db
=&
$
db
;
$
this
->
CI
->
load
->
helper
(
'
file
'
);
}
// --------------------------------------------------------------------
/**
* Set Cache Directory Path
*
* @access public
* @param string the path to the cache directory
* @return bool
*/
function
check_path
(
$
path
=
''
)
{
if
(
$
path
==
''
)
{
if
(
$
this
->
db
->
cachedir
==
''
)
{
return
$
this
->
db
->
cache_off
();
}
$
path
=
$
this
->
db
->
cachedir
;
}
// Add a trailing slash to the path if needed
$
path
=
preg_replace
(
"
/(.+?)\/*$/
"
,
"\\
1/
"
,
$
path
);
if
( !
is_dir
(
$
path
)
OR
!
is_really_writable
(
$
path
))
{
// If the path is wrong we'll turn off caching
return
$
this
->
db
->
cache_off
();
}
$
this
->
db
->
cachedir
=
$
path
;
return
TRUE
;
}
// --------------------------------------------------------------------
/**
* Retrieve a cached query
*
* The URI being requested will become the name of the cache sub-folder.
* An MD5 hash of the SQL statement will become the cache file name
*
* @access public
* @return string
*/
function
read
(
$
sql
)
{
if
( !
$
this
->
check_path
())
{
return
$
this
->
db
->
cache_off
();
}
$
segment_one
= (
$
this
->
CI
->
uri
->
segment
(
1
) ==
FALSE
) ?
'
default
'
:
$
this
->
CI
->
uri
->
segment
(
1
);
$
segment_two
= (
$
this
->
CI
->
uri
->
segment
(
2
) ==
FALSE
) ?
'
index
'
:
$
this
->
CI
->
uri
->
segment
(
2
);
$
filepath
=
$
this
->
db
->
cachedir
.
$
segment_one
.
'
+
'
.
$
segment_two
.
'
/
'
.
md5
(
$
sql
);
if
(
FALSE
=== (
$
cachedata
=
read_file
(
$
filepath
)))
{
return
FALSE
;
}
return
unserialize
(
$
cachedata
);
}
// --------------------------------------------------------------------
/**
* Write a query to a cache file
*
* @access public
* @return bool
*/
function
write
(
$
sql
,
$
object
)
{
if
( !
$
this
->
check_path
())
{
return
$
this
->
db
->
cache_off
();
}
$
segment_one
= (
$
this
->
CI
->
uri
->
segment
(
1
) ==
FALSE
) ?
'
default
'
:
$
this
->
CI
->
uri
->
segment
(
1
);
$
segment_two
= (
$
this
->
CI
->
uri
->
segment
(
2
) ==
FALSE
) ?
'
index
'
:
$
this
->
CI
->
uri
->
segment
(
2
);
$
dir_path
=
$
this
->
db
->
cachedir
.
$
segment_one
.
'
+
'
.
$
segment_two
.
'
/
'
;
$
filename
=
md5
(
$
sql
);
if
( ! @
is_dir
(
$
dir_path
))
{
if
( ! @
mkdir
(
$
dir_path
,
DIR_WRITE_MODE
))
{
return
FALSE
;
}
@
chmod
(
$
dir_path
,
DIR_WRITE_MODE
);
}
if
(
write_file
(
$
dir_path
.
$
filename
,
serialize
(
$
object
)) ===
FALSE
)
{
return
FALSE
;
}
@
chmod
(
$
dir_path
.
$
filename
,
FILE_WRITE_MODE
);
return
TRUE
;
}
// --------------------------------------------------------------------
/**
* Delete cache files within a particular directory
*
* @access public
* @return bool
*/
function
delete
(
$
segment_one
=
''
,
$
segment_two
=
''
)
{
if
(
$
segment_one
==
''
)
{
$
segment_one
= (
$
this
->
CI
->
uri
->
segment
(
1
) ==
FALSE
) ?
'
default
'
:
$
this
->
CI
->
uri
->
segment
(
1
);
}
if
(
$
segment_two
==
''
)
{
$
segment_two
= (
$
this
->
CI
->
uri
->
segment
(
2
) ==
FALSE
) ?
'
index
'
:
$
this
->
CI
->
uri
->
segment
(
2
);
}
$
dir_path
=
$
this
->
db
->
cachedir
.
$
segment_one
.
'
+
'
.
$
segment_two
.
'
/
'
;
delete_files
(
$
dir_path
,
TRUE
);
}
// --------------------------------------------------------------------
/**
* Delete all existing cache files
*
* @access public
* @return bool
*/
function
delete_all
()
{
delete_files
(
$
this
->
db
->
cachedir
,
TRUE
);
}
}
/* End of file DB_cache.php */
/* Location: ./system/database/DB_cache.php */
Back
|
FazBrowse Home
|
New Git URL