You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
316 lines
14 KiB
316 lines
14 KiB
<?php
|
|
///////////////////////////////////////////////////////////////////////////
|
|
// //
|
|
// NOTICE OF COPYRIGHT //
|
|
// //
|
|
// Moodle - Modular Object-Oriented Dynamic Learning Environment //
|
|
// http://moodle.org //
|
|
// //
|
|
// Copyright (C) 1999-onwards Moodle Pty Ltd http://moodle.com //
|
|
// //
|
|
// This program is free software; you can redistribute it and/or modify //
|
|
// it under the terms of the GNU General Public License as published by //
|
|
// the Free Software Foundation; either version 2 of the License, or //
|
|
// (at your option) any later version. //
|
|
// //
|
|
// This program is distributed in the hope that it will be useful, //
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of //
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
|
|
// GNU General Public License for more details: //
|
|
// //
|
|
// http://www.gnu.org/copyleft/gpl.html //
|
|
// //
|
|
///////////////////////////////////////////////////////////////////////////
|
|
|
|
class data_field_latlong extends data_field_base {
|
|
var $type = 'latlong';
|
|
|
|
// This is an array of URL schemes for linking out to services, using the float values of lat and long.
|
|
// In each scheme, the special markers @lat@ and @long@ will be replaced by the float values.
|
|
// The config options for the field store each service name that should be displayed, in a comma-separated
|
|
// field. Therefore please DO NOT include commas in the service names if you are adding extra services.
|
|
|
|
// Parameter data used:
|
|
// "param1" is a comma-separated list of the linkout service names that are enabled for this instance
|
|
// "param2" indicates the label that will be used in generating Google Earth KML files: -1 for item #, -2 for lat/long, positive number for the (text) field to use.
|
|
|
|
var $linkoutservices = array(
|
|
"Google Maps" => "http://maps.google.com/maps?q=@lat@,+@long@&iwloc=A&hl=en",
|
|
"Google Earth" => "@wwwroot@/mod/data/field/latlong/kml.php?d=@dataid@&fieldid=@fieldid@&rid=@recordid@",
|
|
"Geabios" => "http://www.geabios.com/html/services/maps/PublicMap.htm?lat=@lat@&lon=@long@&fov=0.3&title=Moodle%20data%20item",
|
|
"OpenStreetMap" => "http://www.openstreetmap.org/index.html?lat=@lat@&lon=@long@&zoom=11",
|
|
"Multimap" => "http://www.multimap.com/map/browse.cgi?scale=200000&lon=@long@&lat=@lat@&icon=x"
|
|
);
|
|
// Other map sources listed at http://kvaleberg.com/extensions/mapsources/index.php?params=51_30.4167_N_0_7.65_W_region:earth
|
|
|
|
function display_add_field($recordid = 0, $formdata = null) {
|
|
global $CFG, $DB, $OUTPUT;
|
|
|
|
$lat = '';
|
|
$long = '';
|
|
if ($formdata) {
|
|
$fieldname = 'field_' . $this->field->id . '_0';
|
|
$lat = $formdata->$fieldname;
|
|
$fieldname = 'field_' . $this->field->id . '_1';
|
|
$long = $formdata->$fieldname;
|
|
} else if ($recordid) {
|
|
if ($content = $DB->get_record('data_content', array('fieldid'=>$this->field->id, 'recordid'=>$recordid))) {
|
|
$lat = $content->content;
|
|
$long = $content->content1;
|
|
}
|
|
}
|
|
$str = '<div title="'.s($this->field->description).'">';
|
|
$str .= '<fieldset><legend><span class="accesshide">'.$this->field->name.'</span></legend>';
|
|
$str .= '<table class="form-inline"><tr><td align="right">';
|
|
$classes = 'mod-data-input form-control-static';
|
|
$str .= '<label for="field_'.$this->field->id.'_0" class="' . $classes . '">' . get_string('latitude', 'data');
|
|
if ($this->field->required) {
|
|
$str .= $OUTPUT->pix_icon('req', get_string('requiredelement', 'form'));
|
|
}
|
|
$classes = 'form-control mx-1';
|
|
$str .= '</label></td><td>';
|
|
$str .= '<input class="' . $classes . '" type="text" name="field_'.$this->field->id.'_0" ';
|
|
$str .= ' id="field_'.$this->field->id.'_0" value="';
|
|
$str .= s($lat).'" size="10" />°N</td></tr>';
|
|
$classes = 'mod-data-input form-control-static';
|
|
$str .= '<tr><td align="right"><label for="field_'.$this->field->id.'_1" class="' . $classes . '">';
|
|
$str .= get_string('longitude', 'data');
|
|
if ($this->field->required) {
|
|
$str .= $OUTPUT->pix_icon('req', get_string('requiredelement', 'form'));
|
|
}
|
|
$classes = 'form-control mx-1';
|
|
$str .= '</label></td><td><input class="' . $classes . '" type="text" ';
|
|
$str .= 'name="field_'.$this->field->id.'_1" id="field_'.$this->field->id.'_1" value="';
|
|
$str .= s($long).'" size="10" />°E</td>';
|
|
$str .= '</tr>';
|
|
$str .= '</table>';
|
|
$str .= '</fieldset>';
|
|
$str .= '</div>';
|
|
return $str;
|
|
}
|
|
|
|
function display_search_field($value = '') {
|
|
global $CFG, $DB;
|
|
|
|
$varcharlat = $DB->sql_compare_text('content');
|
|
$varcharlong= $DB->sql_compare_text('content1');
|
|
$latlongsrs = $DB->get_recordset_sql(
|
|
"SELECT DISTINCT $varcharlat AS la, $varcharlong AS lo
|
|
FROM {data_content}
|
|
WHERE fieldid = ?
|
|
ORDER BY $varcharlat, $varcharlong", array($this->field->id));
|
|
|
|
$options = array();
|
|
foreach ($latlongsrs as $latlong) {
|
|
$latitude = format_float($latlong->la, 4);
|
|
$longitude = format_float($latlong->lo, 4);
|
|
if ($latitude && $longitude) {
|
|
$options[$latlong->la . ',' . $latlong->lo] = $latitude . ' ' . $longitude;
|
|
}
|
|
}
|
|
$latlongsrs->close();
|
|
|
|
$classes = array('class' => 'accesshide');
|
|
$return = html_writer::label(get_string('latlong', 'data'), 'menuf_'.$this->field->id, false, $classes);
|
|
$classes = array('class' => 'custom-select');
|
|
$return .= html_writer::select($options, 'f_'.$this->field->id, $value, array('' => get_string('menuchoose', 'data')),
|
|
$classes);
|
|
return $return;
|
|
}
|
|
|
|
public function parse_search_field($defaults = null) {
|
|
$param = 'f_'.$this->field->id;
|
|
if (empty($defaults[$param])) {
|
|
$defaults = array($param => '');
|
|
}
|
|
return optional_param($param, $defaults[$param], PARAM_NOTAGS);
|
|
}
|
|
|
|
function generate_sql($tablealias, $value) {
|
|
global $DB;
|
|
|
|
static $i=0;
|
|
$i++;
|
|
$name1 = "df_latlong1_$i";
|
|
$name2 = "df_latlong2_$i";
|
|
$varcharlat = $DB->sql_compare_text("{$tablealias}.content");
|
|
$varcharlong= $DB->sql_compare_text("{$tablealias}.content1");
|
|
|
|
|
|
$latlong[0] = '';
|
|
$latlong[1] = '';
|
|
$latlong = explode (',', $value, 2);
|
|
return array(" ({$tablealias}.fieldid = {$this->field->id} AND $varcharlat = :$name1 AND $varcharlong = :$name2) ",
|
|
array($name1=>$latlong[0], $name2=>$latlong[1]));
|
|
}
|
|
|
|
function display_browse_field($recordid, $template) {
|
|
global $CFG, $DB;
|
|
if ($content = $DB->get_record('data_content', array('fieldid'=>$this->field->id, 'recordid'=>$recordid))) {
|
|
$lat = $content->content;
|
|
if (strlen($lat) < 1) {
|
|
return false;
|
|
}
|
|
$long = $content->content1;
|
|
if (strlen($long) < 1) {
|
|
return false;
|
|
}
|
|
// We use format_float to display in the regional format.
|
|
if($lat < 0) {
|
|
$compasslat = format_float(-$lat, 4) . '°S';
|
|
} else {
|
|
$compasslat = format_float($lat, 4) . '°N';
|
|
}
|
|
if($long < 0) {
|
|
$compasslong = format_float(-$long, 4) . '°W';
|
|
} else {
|
|
$compasslong = format_float($long, 4) . '°E';
|
|
}
|
|
|
|
// Now let's create the jump-to-services link
|
|
$servicesshown = explode(',', $this->field->param1);
|
|
|
|
// These are the different things that can be magically inserted into URL schemes
|
|
$urlreplacements = array(
|
|
'@lat@'=> $lat,
|
|
'@long@'=> $long,
|
|
'@wwwroot@'=> $CFG->wwwroot,
|
|
'@contentid@'=> $content->id,
|
|
'@dataid@'=> $this->data->id,
|
|
'@courseid@'=> $this->data->course,
|
|
'@fieldid@'=> $content->fieldid,
|
|
'@recordid@'=> $content->recordid,
|
|
);
|
|
|
|
if(sizeof($servicesshown)==1 && $servicesshown[0]) {
|
|
$str = " <a href='"
|
|
. str_replace(array_keys($urlreplacements), array_values($urlreplacements), $this->linkoutservices[$servicesshown[0]])
|
|
."' title='$servicesshown[0]'>$compasslat $compasslong</a>";
|
|
} elseif (sizeof($servicesshown)>1) {
|
|
$str = '<form id="latlongfieldbrowse">';
|
|
$str .= "$compasslat, $compasslong\n";
|
|
$str .= "<label class='accesshide' for='jumpto'>". get_string('jumpto') ."</label>";
|
|
$str .= '<select id="jumpto" name="jumpto" class="custom-select">';
|
|
foreach($servicesshown as $servicename){
|
|
// Add a link to a service
|
|
$str .= "\n <option value='"
|
|
. str_replace(array_keys($urlreplacements), array_values($urlreplacements), $this->linkoutservices[$servicename])
|
|
. "'>".htmlspecialchars($servicename)."</option>";
|
|
}
|
|
// NB! If you are editing this, make sure you don't break the javascript reference "previousSibling"
|
|
// which allows the "Go" button to refer to the drop-down selector.
|
|
$str .= '\n</select><input type="button" class="btn ml-1 btn-secondary" value="' . get_string('go');
|
|
$str .= '" onclick="if(previousSibling.value){self.location=previousSibling.value}"/>';
|
|
$str .= '</form>';
|
|
} else {
|
|
$str = "$compasslat, $compasslong";
|
|
}
|
|
|
|
return $str;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
function update_content_import($recordid, $value, $name='') {
|
|
$values = explode(" ", $value, 2);
|
|
|
|
foreach ($values as $index => $value) {
|
|
$this->update_content($recordid, $value, $name . '_' . $index);
|
|
}
|
|
}
|
|
|
|
function update_content($recordid, $value, $name='') {
|
|
global $DB;
|
|
|
|
$content = new stdClass();
|
|
$content->fieldid = $this->field->id;
|
|
$content->recordid = $recordid;
|
|
// When updating these values (which might be region formatted) we should format
|
|
// the float to allow for a consistent float format in the database.
|
|
$value = unformat_float($value);
|
|
$value = trim($value);
|
|
if (strlen($value) > 0) {
|
|
$value = floatval($value);
|
|
} else {
|
|
$value = null;
|
|
}
|
|
$names = explode('_', $name);
|
|
switch ($names[2]) {
|
|
case 0:
|
|
// update lat
|
|
$content->content = $value;
|
|
break;
|
|
case 1:
|
|
// update long
|
|
$content->content1 = $value;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
if ($oldcontent = $DB->get_record('data_content', array('fieldid'=>$this->field->id, 'recordid'=>$recordid))) {
|
|
$content->id = $oldcontent->id;
|
|
return $DB->update_record('data_content', $content);
|
|
} else {
|
|
return $DB->insert_record('data_content', $content);
|
|
}
|
|
}
|
|
|
|
function get_sort_sql($fieldname) {
|
|
global $DB;
|
|
return $DB->sql_cast_char2real($fieldname, true);
|
|
}
|
|
|
|
function export_text_value($record) {
|
|
// The content here is from the database and does not require location formating.
|
|
return sprintf('%01.4f', $record->content) . ' ' . sprintf('%01.4f', $record->content1);
|
|
}
|
|
|
|
/**
|
|
* Check if a field from an add form is empty
|
|
*
|
|
* @param mixed $value
|
|
* @param mixed $name
|
|
* @return bool
|
|
*/
|
|
function notemptyfield($value, $name) {
|
|
return isset($value) && !($value == '');
|
|
}
|
|
|
|
/**
|
|
* Validate values for this field.
|
|
* Both the Latitude and the Longitude fields need to be filled in.
|
|
*
|
|
* @param array $values The entered values for the lat. and long.
|
|
* @return string|bool Error message or false.
|
|
*/
|
|
public function field_validation($values) {
|
|
$valuecount = 0;
|
|
// The lat long class has two values that need to be checked.
|
|
foreach ($values as $value) {
|
|
if (isset($value->value) && !($value->value == '')) {
|
|
$valuecount++;
|
|
}
|
|
}
|
|
// If we have nothing filled in or both filled in then everything is okay.
|
|
if ($valuecount == 0 || $valuecount == 2) {
|
|
return false;
|
|
}
|
|
// If we get here then only one field has been filled in.
|
|
return get_string('latlongboth', 'data');
|
|
}
|
|
|
|
/**
|
|
* Return the plugin configs for external functions.
|
|
*
|
|
* @return array the list of config parameters
|
|
* @since Moodle 3.3
|
|
*/
|
|
public function get_config_for_external() {
|
|
// Return all the config parameters.
|
|
$configs = [];
|
|
for ($i = 1; $i <= 10; $i++) {
|
|
$configs["param$i"] = $this->field->{"param$i"};
|
|
}
|
|
return $configs;
|
|
}
|
|
}
|
|
|