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
|
<?php
/**
* Provides Isis Database search methods.
*/
class IsisFinder extends IsisConnector {
/**
* Find the next repetition of a field.
*
* @param $entry
* Start entry number to begin the search.
*
* @param $field
* Field data.
*
* @return
* Next repetition entry and result.
*/
public function nextRepetition($entry = 1, $field) {
$entry--;
// Query database.
do {
$result = $this->read(++$entry);
if ($entry == $entries) {
break;
}
} while (!isset($result[$field['name']]) || count($result[$field['name']]) < 2);
if (!isset($result[$field['name']]) || count($result[$field['name']]) < 2) {
return FALSE;
}
return array($entry, $result);
}
/**
* Find the next occurrence of a field.
*
* @param $entry
* Start entry number to begin the search.
*
* @param $field
* Field data.
*
* @return
* Next occurrence.
*/
public function nextField($entry = 1, $field) {
$entry--;
// Query database.
do {
$result = $this->read(++$entry);
if ($entry == $entries) {
break;
}
} while (!isset($result[$field['name']]));
if (!isset($result[$field['name']])) {
return FALSE;
}
return array($entry, $result);
}
/**
* Find the next occurrence of a subfield.
*
* @param $entry
* Start entry number to begin the search.
*
* @param $field
* Field data.
*
* @param $subfield
* Subfield name.
*
* @return
* Next occurrence.
*/
public function nextSubfield($entry = 1, $field, $subfield) {
$entry--;
// Query database.
do {
$result = $this->read(++$entry);
if ($entry == $entries) {
break;
}
$has = $this->hasSubfieldInRows($field, $subfield);
} while ($has === FALSE);
if (!$this->hasSubfield($field, $subfield, $has)) {
return FALSE;
}
return array($entry, $result);
}
/**
* Check if a field result has a given subfield.
*
* @param $field
* Field data.
*
* @param $subfield
* Subfield.
*
* @return
* True if result has the subfield, false otherwise.
*/
public function hasSubfieldInRows($field, $subfield) {
foreach (new IsisRowIterator($this, $field) as $row) {
if ($this->hasSubfield($field, $subfield, $row)) {
return $row;
}
}
return FALSE;
}
}
|
