|
1
|
|
|
<?php |
|
2
|
|
|
/** |
|
3
|
|
|
* @package org.openpsa.qbpager |
|
4
|
|
|
*/ |
|
5
|
|
|
|
|
6
|
|
|
/** |
|
7
|
|
|
* Pages QB resultsets |
|
8
|
|
|
* |
|
9
|
|
|
* @package org.openpsa.qbpager |
|
10
|
|
|
*/ |
|
11
|
|
|
class org_openpsa_qbpager |
|
12
|
|
|
{ |
|
13
|
|
|
use midcom_baseclasses_components_base; |
|
|
|
|
|
|
14
|
|
|
|
|
15
|
|
|
public $results_per_page = 25; |
|
16
|
|
|
public $display_pages = 10; |
|
17
|
|
|
public $string_next = 'next'; |
|
18
|
|
|
public $string_previous = 'previous'; |
|
19
|
|
|
protected $_midcom_qb; |
|
20
|
|
|
protected $_midcom_qb_count; |
|
21
|
|
|
protected $_pager_id; |
|
22
|
|
|
protected $_prefix = ''; |
|
23
|
|
|
private $_offset = 0; |
|
24
|
|
|
protected $count; |
|
25
|
|
|
private $_current_page = 1; |
|
26
|
|
|
|
|
27
|
14 |
|
public function __construct(string $classname, string $pager_id) |
|
28
|
|
|
{ |
|
29
|
14 |
|
$this->_component = 'org.openpsa.qbpager'; |
|
30
|
14 |
|
if (empty($pager_id)) { |
|
31
|
|
|
throw new midcom_error('pager_id is not set (needed for distinguishing different instances on same request)'); |
|
32
|
|
|
} |
|
33
|
|
|
|
|
34
|
14 |
|
$this->_pager_id = $pager_id; |
|
35
|
14 |
|
$this->_prefix = 'org_openpsa_qbpager_' . $pager_id . '_'; |
|
36
|
14 |
|
$this->_prepare_qbs($classname); |
|
37
|
14 |
|
} |
|
38
|
|
|
|
|
39
|
13 |
|
protected function _prepare_qbs(string $classname) |
|
40
|
|
|
{ |
|
41
|
13 |
|
$this->_midcom_qb = midcom::get()->dbfactory->new_query_builder($classname); |
|
42
|
|
|
// Make another QB for counting, we need to do this to avoid trouble with core internal references system |
|
43
|
13 |
|
$this->_midcom_qb_count = midcom::get()->dbfactory->new_query_builder($classname); |
|
44
|
13 |
|
} |
|
45
|
|
|
|
|
46
|
|
|
/** |
|
47
|
|
|
* Get the current page number |
|
48
|
|
|
*/ |
|
49
|
5 |
|
public function get_current_page() : int |
|
50
|
|
|
{ |
|
51
|
5 |
|
return $this->_current_page; |
|
52
|
|
|
} |
|
53
|
|
|
|
|
54
|
|
|
/** |
|
55
|
|
|
* Fetch all $_GET variables |
|
56
|
|
|
*/ |
|
57
|
|
|
private function _get_query_string(string $page_var, int $page_number) : string |
|
58
|
|
|
{ |
|
59
|
|
|
$query = [$page_var => $page_number]; |
|
60
|
|
|
|
|
61
|
|
|
foreach ($_GET as $key => $value) { |
|
62
|
|
|
if (!in_array($key, [$page_var, ''])) { |
|
63
|
|
|
$query[$key] = $value; |
|
64
|
|
|
} |
|
65
|
|
|
} |
|
66
|
|
|
|
|
67
|
|
|
return '?' . http_build_query($query); |
|
68
|
|
|
} |
|
69
|
|
|
|
|
70
|
|
|
/** |
|
71
|
|
|
* Displays previous/next selector |
|
72
|
|
|
*/ |
|
73
|
5 |
|
function show_previousnext() |
|
|
|
|
|
|
74
|
|
|
{ |
|
75
|
5 |
|
$page_count = $this->count_pages(); |
|
76
|
|
|
//Skip the header in case we only have one page |
|
77
|
5 |
|
if ($page_count <= 1) { |
|
78
|
5 |
|
return; |
|
79
|
|
|
} |
|
80
|
|
|
//@todo Move to style element |
|
81
|
|
|
//TODO: "showing results (offset)-(offset+limit) |
|
82
|
|
|
$page_var = $this->_prefix . 'page'; |
|
83
|
|
|
echo '<div class="org_openpsa_qbpager_previousnext">'; |
|
84
|
|
|
|
|
85
|
|
|
if ($this->_current_page > 1) { |
|
86
|
|
|
$previous = $this->_current_page - 1; |
|
87
|
|
|
echo "\n<a class=\"previous_page\" href=\"" . $this->_get_query_string($page_var, $previous) . "\" rel=\"prev\">" . $this->_l10n->get($this->string_previous) . "</a>"; |
|
88
|
|
|
} |
|
89
|
|
|
|
|
90
|
|
|
if ($this->_current_page < $page_count) { |
|
91
|
|
|
$next = $this->_current_page + 1; |
|
92
|
|
|
echo "\n<a class=\"next_page\" href=\"" . $this->_get_query_string($page_var, $next) . "\" rel=\"next\">" . $this->_l10n->get($this->string_next) . "</a>"; |
|
93
|
|
|
} |
|
94
|
|
|
|
|
95
|
|
|
echo "\n</div>\n"; |
|
96
|
|
|
} |
|
97
|
|
|
|
|
98
|
1 |
|
public function get_pages() : array |
|
99
|
|
|
{ |
|
100
|
1 |
|
$pages = []; |
|
101
|
1 |
|
$page_count = $this->count_pages(); |
|
102
|
|
|
|
|
103
|
1 |
|
if ($page_count < 1) { |
|
104
|
|
|
return $pages; |
|
105
|
|
|
} |
|
106
|
|
|
|
|
107
|
1 |
|
$page_var = $this->_prefix . 'page'; |
|
108
|
1 |
|
$display_start = max(($this->_current_page - ceil($this->display_pages / 2)), 1); |
|
109
|
1 |
|
$display_end = min(($this->_current_page + ceil($this->display_pages / 2)), $page_count); |
|
110
|
|
|
|
|
111
|
1 |
|
if ($this->_current_page > 1) { |
|
112
|
|
|
$previous = $this->_current_page - 1; |
|
113
|
|
|
if ($previous > 1) { |
|
114
|
|
|
$pages[] = [ |
|
115
|
|
|
'class' => 'first', |
|
116
|
|
|
'href' => $this->_get_query_string($page_var, 1), |
|
117
|
|
|
'rel' => 'prev', |
|
118
|
|
|
'label' => $this->_l10n->get('first'), |
|
119
|
|
|
'number' => 1 |
|
120
|
|
|
]; |
|
121
|
|
|
} |
|
122
|
|
|
$pages[] = [ |
|
123
|
|
|
'class' => 'previous', |
|
124
|
|
|
'href' => $this->_get_query_string($page_var, $previous), |
|
125
|
|
|
'rel' => 'prev', |
|
126
|
|
|
'label' => $this->_l10n->get($this->string_previous), |
|
127
|
|
|
'number' => $previous |
|
128
|
|
|
]; |
|
129
|
|
|
} |
|
130
|
1 |
|
$page = $display_start - 1; |
|
131
|
1 |
|
while ($page++ < $display_end) { |
|
132
|
1 |
|
$href = false; |
|
133
|
1 |
|
if ($page != $this->_current_page) { |
|
134
|
|
|
$href = $this->_get_query_string($page_var, $page); |
|
135
|
|
|
} |
|
136
|
1 |
|
$pages[] = [ |
|
137
|
1 |
|
'class' => 'current', |
|
138
|
1 |
|
'href' => $href, |
|
139
|
|
|
'rel' => false, |
|
140
|
1 |
|
'label' => $page, |
|
141
|
1 |
|
'number' => $page |
|
142
|
|
|
]; |
|
143
|
|
|
} |
|
144
|
|
|
|
|
145
|
1 |
|
if ($this->_current_page < $page_count) { |
|
146
|
|
|
$next = $this->_current_page + 1; |
|
147
|
|
|
$pages[] = [ |
|
148
|
|
|
'class' => 'next', |
|
149
|
|
|
'href' => $this->_get_query_string($page_var, $next), |
|
150
|
|
|
'rel' => 'next', |
|
151
|
|
|
'label' => $this->_l10n->get($this->string_next), |
|
152
|
|
|
'number' => $next |
|
153
|
|
|
]; |
|
154
|
|
|
|
|
155
|
|
|
if ($next < $page_count) { |
|
156
|
|
|
$pages[] = [ |
|
157
|
|
|
'class' => 'last', |
|
158
|
|
|
'href' => $this->_get_query_string($page_var, $page_count), |
|
|
|
|
|
|
159
|
|
|
'rel' => 'next', |
|
160
|
|
|
'label' => $this->_l10n->get('last'), |
|
161
|
|
|
'number' => $page_count |
|
162
|
|
|
]; |
|
163
|
|
|
} |
|
164
|
|
|
} |
|
165
|
|
|
|
|
166
|
1 |
|
return $pages; |
|
167
|
|
|
} |
|
168
|
|
|
|
|
169
|
1 |
|
private function show(string $name, array $data) |
|
170
|
|
|
{ |
|
171
|
1 |
|
$context = midcom_core_context::enter(); |
|
172
|
1 |
|
$context->set_custom_key('request_data', $data); |
|
173
|
1 |
|
midcom::get()->style->prepend_component_styledir($this->_component); |
|
174
|
1 |
|
midcom::get()->style->enter_context($context); |
|
175
|
1 |
|
midcom_show_style('show_' . $name); |
|
176
|
1 |
|
midcom::get()->style->leave_context(); |
|
177
|
1 |
|
midcom_core_context::leave(); |
|
178
|
1 |
|
} |
|
179
|
|
|
|
|
180
|
|
|
/** |
|
181
|
|
|
* Displays page selector |
|
182
|
|
|
*/ |
|
183
|
1 |
|
public function show_pages() |
|
184
|
|
|
{ |
|
185
|
1 |
|
$this->show('pages', ['pages' => $this->get_pages()]); |
|
186
|
1 |
|
} |
|
187
|
|
|
|
|
188
|
|
|
/** |
|
189
|
|
|
* Displays page selector as list |
|
190
|
|
|
*/ |
|
191
|
|
|
function show_pages_as_list() |
|
|
|
|
|
|
192
|
|
|
{ |
|
193
|
|
|
$this->show('pages_as_list', ['pages' => $this->get_pages()]); |
|
194
|
|
|
} |
|
195
|
|
|
|
|
196
|
|
|
/** |
|
197
|
|
|
* Check $_REQUEST for variables and sets LIMIT and OFFSET for requested page |
|
198
|
|
|
*/ |
|
199
|
14 |
|
protected function _qb_limits($qb) |
|
200
|
|
|
{ |
|
201
|
14 |
|
$page_var = $this->_prefix . 'page'; |
|
202
|
14 |
|
if (!empty($_REQUEST[$page_var])) { |
|
203
|
|
|
debug_add("{$page_var} has value: {$_REQUEST[$page_var]}"); |
|
204
|
|
|
$this->_current_page = max(1, (int) $_REQUEST[$page_var]); |
|
205
|
|
|
} |
|
206
|
14 |
|
if ($this->_current_page == 'all') { |
|
207
|
|
|
debug_add("displaying all results"); |
|
208
|
|
|
return; |
|
209
|
|
|
} |
|
210
|
14 |
|
$results_var = $this->_prefix . 'results'; |
|
211
|
14 |
|
if (!empty($_REQUEST[$results_var])) { |
|
212
|
|
|
debug_add("{$results_var} has value: {$_REQUEST[$results_var]}"); |
|
213
|
|
|
$this->results_per_page = max(1, (int) $_REQUEST[$results_var]); |
|
214
|
|
|
} |
|
215
|
14 |
|
if ($this->results_per_page < 1) { |
|
216
|
|
|
throw new LogicException('results_per_page is set to ' . $this->results_per_page); |
|
217
|
|
|
} |
|
218
|
14 |
|
$this->_offset = ($this->_current_page - 1) * $this->results_per_page; |
|
219
|
14 |
|
$qb->set_limit($this->results_per_page); |
|
220
|
14 |
|
$qb->set_offset($this->_offset); |
|
221
|
14 |
|
debug_add("set offset to {$this->_offset} and limit to {$this->results_per_page}"); |
|
222
|
14 |
|
} |
|
223
|
|
|
|
|
224
|
14 |
|
public function execute() : array |
|
225
|
|
|
{ |
|
226
|
14 |
|
$this->_qb_limits($this->_midcom_qb); |
|
227
|
14 |
|
return $this->_midcom_qb->execute(); |
|
228
|
|
|
} |
|
229
|
|
|
|
|
230
|
|
|
/** |
|
231
|
|
|
* Returns number of total pages for query |
|
232
|
|
|
* |
|
233
|
|
|
* By default returns a number of pages without any ACL checks |
|
234
|
|
|
*/ |
|
235
|
6 |
|
public function count_pages() |
|
236
|
|
|
{ |
|
237
|
6 |
|
return ceil($this->count_unchecked() / $this->results_per_page); |
|
238
|
|
|
} |
|
239
|
|
|
|
|
240
|
|
|
//Rest of supported methods wrapped with extra sanity check |
|
241
|
14 |
|
public function add_constraint(string $param, string $op, $val) : bool |
|
242
|
|
|
{ |
|
243
|
14 |
|
$this->_midcom_qb_count->add_constraint($param, $op, $val); |
|
244
|
14 |
|
return $this->_midcom_qb->add_constraint($param, $op, $val); |
|
245
|
|
|
} |
|
246
|
|
|
|
|
247
|
13 |
|
public function add_order(string $param, string $sort = 'ASC') : bool |
|
248
|
|
|
{ |
|
249
|
13 |
|
return $this->_midcom_qb->add_order($param, $sort); |
|
250
|
|
|
} |
|
251
|
|
|
|
|
252
|
2 |
|
public function begin_group(string $type) |
|
253
|
|
|
{ |
|
254
|
2 |
|
$this->_midcom_qb_count->begin_group($type); |
|
255
|
2 |
|
$this->_midcom_qb->begin_group($type); |
|
256
|
2 |
|
} |
|
257
|
|
|
|
|
258
|
2 |
|
public function end_group() |
|
259
|
|
|
{ |
|
260
|
2 |
|
$this->_midcom_qb_count->end_group(); |
|
261
|
2 |
|
$this->_midcom_qb->end_group(); |
|
262
|
2 |
|
} |
|
263
|
|
|
|
|
264
|
1 |
|
public function include_deleted() |
|
265
|
|
|
{ |
|
266
|
1 |
|
$this->_midcom_qb_count->include_deleted(); |
|
267
|
1 |
|
$this->_midcom_qb->include_deleted(); |
|
268
|
1 |
|
} |
|
269
|
|
|
|
|
270
|
6 |
|
public function count_unchecked() : int |
|
271
|
|
|
{ |
|
272
|
6 |
|
if (!$this->count) { |
|
273
|
6 |
|
$this->count = $this->_midcom_qb_count->count_unchecked(); |
|
274
|
|
|
} |
|
275
|
6 |
|
return $this->count; |
|
276
|
|
|
} |
|
277
|
|
|
} |
|
278
|
|
|
|
flack /
openpsa
Loading history...