ILIAS  release_5-4 Revision v5.4.26-12-gabc799a52e6
class.ilADTLocationSearchBridgeSingle.php
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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 $DIC;
31
32 $lng = $DIC['lng'];
33
34 $adt = $this->getADT();
35
36 $default = false;
37 if ($adt->isNull()) {
38 // see ilPersonalProfileGUI::addLocationToForm()
39
40 // use installation default
41 include_once("./Services/Maps/classes/class.ilMapUtil.php");
43 $adt->setLatitude($def["latitude"]);
44 $adt->setLongitude($def["longitude"]);
45 $adt->setZoom($def["zoom"]);
46
47 $default = true;
48 }
49
50 $optional = new ilCheckboxInputGUI($this->getTitle(), $this->addToElementId("tgl"));
51
52 if (!$default && !$adt->isNull()) {
53 $optional->setChecked(true);
54 }
55
56 $loc = new ilLocationInputGUI($lng->txt("location"), $this->getElementId());
57 $loc->setLongitude($adt->getLongitude());
58 $loc->setLatitude($adt->getLatitude());
59 $loc->setZoom($adt->getZoom());
60 $optional->addSubItem($loc);
61
62 $rad = new ilNumberInputGUI($lng->txt("form_location_radius"), $this->addToElementId("rad"));
63 $rad->setSize(4);
64 $rad->setSuffix($lng->txt("form_location_radius_km"));
65 $rad->setValue($this->radius);
66 $rad->setRequired(true);
67 $optional->addSubItem($rad);
68
69 $this->addToParentElement($optional);
70 }
71
72 protected function shouldBeImportedFromPost($a_post)
73 {
74 return (bool) $a_post["tgl"];
75 }
76
77 public function importFromPost(array $a_post = null)
78 {
79 $post = $this->extractPostValues($a_post);
80
81 if ($post && $this->shouldBeImportedFromPost($post)) {
82 $tgl = $this->getForm()->getItemByPostVar($this->addToElementId("tgl"));
83 $tgl->setChecked(true);
84
85 $item = $this->getForm()->getItemByPostVar($this->getElementId());
86 $item->setLongitude($post["longitude"]);
87 $item->setLatitude($post["latitude"]);
88 $item->setZoom($post["zoom"]);
89
90 $this->radius = (int) $post["rad"];
91
92 $this->getADT()->setLongitude($post["longitude"]);
93 $this->getADT()->setLatitude($post["latitude"]);
94 $this->getADT()->setZoom($post["zoom"]);
95 } else {
96 // optional empty is valid
97 $this->force_valid = true;
98
99 $this->getADT()->setLongitude(null);
100 $this->getADT()->setLatitude(null);
101 $this->getADT()->setZoom(null);
102 $this->radius = null;
103 }
104 }
105
106 public function isValid()
107 {
108 return (parent::isValid() && ((int) $this->radius || (bool) $this->force_valid));
109 }
110
111
112 // bounding
113
122 protected function getBoundingBox($a_latitude, $a_longitude, $a_radius)
123 {
124 $earth_radius = 6371;
125
126 // http://www.d-mueller.de/blog/umkreissuche-latlong-und-der-radius/
127 $max_lat = $a_latitude + rad2deg($a_radius / $earth_radius);
128 $min_lat = $a_latitude - rad2deg($a_radius / $earth_radius);
129 $max_long = $a_longitude + rad2deg($a_radius / $earth_radius / cos(deg2rad($a_latitude)));
130 $min_long = $a_longitude - rad2deg($a_radius / $earth_radius / cos(deg2rad($a_latitude)));
131
132 return array(
133 "lat" => array("min" => $min_lat, "max" => $max_lat)
134 ,"long" => array("min" => $min_long, "max" => $max_long)
135 );
136 }
137
138
139 // db
140
141 public function getSQLCondition($a_element_id)
142 {
143 global $DIC;
144
145 $ilDB = $DIC['ilDB'];
146
147 if (!$this->isNull() && $this->isValid()) {
148 $box = $this->getBoundingBox($this->getADT()->getLatitude(), $this->getADT()->getLongitude(), $this->radius);
149
150 $res = array();
151 $res[] = $a_element_id . "_lat >= " . $ilDB->quote($box["lat"]["min"], "float");
152 $res[] = $a_element_id . "_lat <= " . $ilDB->quote($box["lat"]["max"], "float");
153 $res[] = $a_element_id . "_long >= " . $ilDB->quote($box["long"]["min"], "float");
154 $res[] = $a_element_id . "_long <= " . $ilDB->quote($box["long"]["max"], "float");
155
156 return "(" . implode(" AND ", $res) . ")";
157 }
158 }
159
160
161 // import/export
162
163 public function getSerializedValue()
164 {
165 if (!$this->isNull() && $this->isValid()) {
166 return serialize(array(
167 "lat" => $this->getADT()->getLatitude()
168 ,"long" => $this->getADT()->getLongitude()
169 ,"zoom" => $this->getADT()->getZoom()
170 ,"radius" => (int) $this->radius
171 ));
172 }
173 }
174
175 public function setSerializedValue($a_value)
176 {
177 $a_value = unserialize($a_value);
178 if (is_array($a_value)) {
179 $this->getADT()->setLatitude($a_value["lat"]);
180 $this->getADT()->setLongitude($a_value["long"]);
181 $this->getADT()->setZoom($a_value["zoom"]);
182 $this->radius = (int) $a_value["radius"];
183 }
184 }
185}
$default
Definition: build.php:20
An exception for terminatinating execution or to throw for unit testing.
ADT definition base class.
getSQLCondition($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 $DIC
Definition: saml.php:7
$lng
foreach($_POST as $key=> $value) $res
global $ilDB