blob: 4ff8c150fc7364c6b8ca6e57c922aa52ac3c9cbd (
plain)
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
|
<?php
/**
* PHP-Isis implementation of IsisDb.
*
* @warning
* This implementation is currently outdated and lacks
* basic functionalities such as subfield handling and
* therefore it's use is not recommended.
*/
class PhpIsisDb implements IsisDb {
/**
* @var $db
* Database resource.
*/
var $db;
/**
* @var $format
* Database format, derived from $schema.
*/
var $format;
/**
* Constructor.
*
* @see IsisDb::__construct()
*/
public function __construct($schema) {
// Save db schema.
$this->format = $schema;
// Setup $fdt.
foreach ($schema['fields'] as $field => $info) {
$this->fdt[$field] = $info['name'];
}
// Open the database.
$name = $schema['db']['name'];
$this->db = isis_open(CinisisDb::file("$name/$name", 'db'));
}
/**
* Read an entry.
*
* The PHP-Isis API doen't implement such feature so we
* have to emulate it by geting all entries and using
* isis_data_seek() to get the desired record.
*
* @see IsisDb::read()
*
* @todo
* Subfields.
*/
public function read($id) {
$results = isis_search('$', $this->db);
if (!isis_data_seek($results, $id-1)) {
return FALSE;
}
// Tag results.
$data = $this->tag(isis_fetch_array($results));
// Charset conversion.
array_walk_recursive($data, array(__CLASS__, 'charset'));
// Return the result.
return $data;
}
/**
* Return number of entries in the database.
*
* @see IsisDb::entries()
*/
public function entries() {
return isis_last_mfn($this->db);
}
/**
* Return an example schema.
*
* @see IsisDb::example()
*/
public function example() {
return SchemaDb::example();
}
/**
* Check configuration.
*
* @see IsisDb::check()
*/
static function check($schema, $section = NULL) {
// Check API availability.
if (!function_exists('isis_open')) {
throw new Exception('Could not find function isis_open. Please check your php-isis installation.');
return FALSE;
}
// Check schema configuration.
return SchemaDb::check($schema, $section);
}
/**
* Tag results of a db query.
*
* This function converts the keys of query result from field
* numbers to names.
*
* @param $results
* Database query results.
*
* @return
* Tagged database result.
*/
function tag($results) {
foreach ($results as $key => $value) {
if ($key != 'mfn') {
$name = $this->format['fields'][$key]['name'];
$data[$name] = $value;
}
}
return $data;
}
/**
* Charset conversion.
*
* Converts a string from the database charset to UTF-8.
*
* @param $data
* String to be converted.
*
* @return
* String converted to UTF-8.
*/
function charset(&$data) {
$data = iconv($this->format['db']['charset'], 'UTF-8', $data);
}
}
|
