ILIAS  release_5-3 Revision v5.3.23-19-g915713cf615
class.ilADTLocationSearchBridgeSingle.php
Go to the documentation of this file.
1<?php
2
3require_once "Services/ADT/classes/Bridges/class.ilADTSearchBridgeSingle.php";
4
6{
7 protected $radius; // [int]
8
9 protected function isValidADTDefinition(ilADTDefinition $a_adt_def)
10 {
11 return ($a_adt_def instanceof ilADTLocationDefinition);
12 }
13
14
15 // table2gui / filter
16
17 public function loadFilter()
18 {
19 $value = $this->readFilter();
20 if ($value !== null) {
21 // :TODO:
22 }
23 }
24
25
26 // form
27
28 public function addToForm()
29 {
30 global $lng;
31
32 $adt = $this->getADT();
33
34 $default = false;
35 if ($adt->isNull()) {
36 // see ilPersonalProfileGUI::addLocationToForm()
37
38 // use installation default
39 include_once("./Services/Maps/classes/class.ilMapUtil.php");
41 $adt->setLatitude($def["latitude"]);
42 $adt->setLongitude($def["longitude"]);
43 $adt->setZoom($def["zoom"]);
44
45 $default = true;
46 }
47
48 $optional = new ilCheckboxInputGUI($this->getTitle(), $this->addToElementId("tgl"));
49
50 if (!$default && !$adt->isNull()) {
51 $optional->setChecked(true);
52 }
53
54 $loc = new ilLocationInputGUI($lng->txt("location"), $this->getElementId());
55 $loc->setLongitude($adt->getLongitude());
56 $loc->setLatitude($adt->getLatitude());
57 $loc->setZoom($adt->getZoom());
58 $optional->addSubItem($loc);
59
60 $rad = new ilNumberInputGUI($lng->txt("form_location_radius"), $this->addToElementId("rad"));
61 $rad->setSize(4);
62 $rad->setSuffix($lng->txt("form_location_radius_km"));
63 $rad->setValue($this->radius);
64 $rad->setRequired(true);
65 $optional->addSubItem($rad);
66
67 $this->addToParentElement($optional);
68 }
69
70 protected function shouldBeImportedFromPost($a_post)
71 {
72 return (bool) $a_post["tgl"];
73 }
74
75 public function importFromPost(array $a_post = null)
76 {
77 $post = $this->extractPostValues($a_post);
78
79 if ($post && $this->shouldBeImportedFromPost($post)) {
80 $tgl = $this->getForm()->getItemByPostVar($this->addToElementId("tgl"));
81 $tgl->setChecked(true);
82
83 $item = $this->getForm()->getItemByPostVar($this->getElementId());
84 $item->setLongitude($post["longitude"]);
85 $item->setLatitude($post["latitude"]);
86 $item->setZoom($post["zoom"]);
87
88 $this->radius = (int) $post["rad"];
89
90 $this->getADT()->setLongitude($post["longitude"]);
91 $this->getADT()->setLatitude($post["latitude"]);
92 $this->getADT()->setZoom($post["zoom"]);
93 } else {
94 // optional empty is valid
95 $this->force_valid = true;
96
97 $this->getADT()->setLongitude(null);
98 $this->getADT()->setLatitude(null);
99 $this->getADT()->setZoom(null);
100 $this->radius = null;
101 }
102 }
103
104 public function isValid()
105 {
106 return (parent::isValid() && ((int) $this->radius || (bool) $this->force_valid));
107 }
108
109
110 // bounding
111
120 protected function getBoundingBox($a_latitude, $a_longitude, $a_radius)
121 {
122 $earth_radius = 6371;
123
124 // http://www.d-mueller.de/blog/umkreissuche-latlong-und-der-radius/
125 $max_lat = $a_latitude + rad2deg($a_radius/$earth_radius);
126 $min_lat = $a_latitude - rad2deg($a_radius/$earth_radius);
127 $max_long = $a_longitude + rad2deg($a_radius/$earth_radius/cos(deg2rad($a_latitude)));
128 $min_long = $a_longitude - rad2deg($a_radius/$earth_radius/cos(deg2rad($a_latitude)));
129
130 return array(
131 "lat" => array("min"=>$min_lat, "max"=>$max_lat)
132 ,"long" => array("min"=>$min_long, "max"=>$max_long)
133 );
134 }
135
136
137 // db
138
139 public function getSQLCondition($a_element_id)
140 {
141 global $ilDB;
142
143 if (!$this->isNull() && $this->isValid()) {
144 $box = $this->getBoundingBox($this->getADT()->getLatitude(), $this->getADT()->getLongitude(), $this->radius);
145
146 $res = array();
147 $res[] = $a_element_id . "_lat >= " . $ilDB->quote($box["lat"]["min"], "float");
148 $res[] = $a_element_id . "_lat <= " . $ilDB->quote($box["lat"]["max"], "float");
149 $res[] = $a_element_id . "_long >= " . $ilDB->quote($box["long"]["min"], "float");
150 $res[] = $a_element_id . "_long <= " . $ilDB->quote($box["long"]["max"], "float");
151
152 return "(" . implode(" AND ", $res) . ")";
153 }
154 }
155
156
157 // import/export
158
159 public function getSerializedValue()
160 {
161 if (!$this->isNull() && $this->isValid()) {
162 return serialize(array(
163 "lat" => $this->getADT()->getLatitude()
164 ,"long" => $this->getADT()->getLongitude()
165 ,"zoom" => $this->getADT()->getZoom()
166 ,"radius" => (int) $this->radius
167 ));
168 }
169 }
170
171 public function setSerializedValue($a_value)
172 {
173 $a_value = unserialize($a_value);
174 if (is_array($a_value)) {
175 $this->getADT()->setLatitude($a_value["lat"]);
176 $this->getADT()->setLongitude($a_value["long"]);
177 $this->getADT()->setZoom($a_value["zoom"]);
178 $this->radius = (int) $a_value["radius"];
179 }
180 }
181}
An exception for terminatinating execution or to throw for unit testing.
ADT definition base class.
getSQLCondition($a_element_id)
Get SQL condition for current value(s)
getSerializedValue()
Get current value(s) in serialized form (for easy persisting)
setSerializedValue($a_value)
Set current value(s) in serialized form (for easy persisting)
getBoundingBox($a_latitude, $a_longitude, $a_radius)
Get bounding box for location circum search.
shouldBeImportedFromPost($a_post)
Check if incoming values should be imported at all.
isValidADTDefinition(ilADTDefinition $a_adt_def)
Check if given ADT definition is valid.
importFromPost(array $a_post=null)
Import values from (search) form request POST data.
readFilter()
Load value(s) from filter store (in session)
extractPostValues(array $a_post=null)
Extract data from (post) values.
addToElementId($a_add)
Add sub-element.
addToParentElement(ilFormPropertyGUI $a_field)
Add form field to parent element.
getElementId()
Get element id.
This class represents a checkbox property in a property form.
This class represents a location property in a property form.
static getDefaultSettings()
Get default longitude, latitude and zoom.
This class represents a number property in a property form.
$def
Definition: croninfo.php:21
$post
Definition: post.php:34
global $lng
Definition: privfeed.php:17
foreach($_POST as $key=> $value) $res
global $ilDB