Auto Calculating LAEA and code in Building::save

application/Building/Building.php

@@ -1,6 +1,8 @@
 <?php
 
 class Building extends mfBaseModel {
+  protected $forcestr = ['street','zip','phone','gps_lat','gps_long','email','note'];
+  
   private $network;
   private $pop;
   private $type;
@@ -39,4 +41,79 @@ class Building extends mfBaseModel {
     return $this->$name;
   }
   
+  public function getNewObjectCode() {
+    if(!$this->zip) {
+      return false;
+    }
+    
+    $cc = "AT";
+    $zip = $this->zip;
+    
+    for($try = 16; $try > 0; $try--) {
+      $rnd[0] = random_int(0, 255);
+      $rnd[1] = random_int(0, 255);
+      $rnd[2] = random_int(0, 255);
+      $rnd[3] = random_int(0, 255);
+
+      $code = "$cc-$zip-";
+      foreach($rnd as $r) {
+        $code .= dechex($r);
+      }
+
+      if(BuildingModel::search(['code' => $code])) {
+        $this->log->warn(__FILE__."::getNewObjectCode: New Code already in use. Trying again for a maximum of $try times.");
+      } else {
+        // code is unique
+        break;
+      }
+    }
+    
+    //var_dump($code);
+    //var_dump($try);exit;
+    
+    if($try == 0) {
+      return null;
+    }
+    
+    return $code;
+  }
+  
+  public function getLaeaCoordinates() {
+    if(!$this->gps_lat || !$this->gps_lat) {
+      return false;
+    }
+    
+    // Elipsenparameter der Erdoberfläche
+    $a = 6378137;
+    $e = 0.081819191;
+    
+    // Lage des Ausgangspunktes in natürlichen Koordinaten und Korrekturwerte in Meter
+    $latO = 0.907571211;
+    $lonO = 0.174532925;
+    $FE = 4321000;
+    $FN = 3210000;
+    
+    // Mathematische Konstanten
+    $qP = 1.99553108748562;
+    $qO = 1.56982570415136;
+    $PI = M_PI;
+    
+    // Umrechnung der Eingabekoordinaten in rad
+    $Lat = $this->gps_lat * $PI / 180;
+    $Lon = $this->gps_long * $PI / 180;
+    
+    // Berechnungen
+    $q = (1 - $e ** 2) * ((sin($Lat) / (1 - $e ** 2 * sin($Lat) ** 2)) - ((1 / (2 * $e)) * log((1 - $e * sin($Lat)) / (1 + $e * sin($Lat)))));
+    $beta = asin($q / $qP);
+    $betaO = asin($qO / $qP);
+    $Rq = $a * ($qP / 2) ** 0.5;
+    $b = $Rq * (2 / (1 + Sin($betaO) * Sin($beta) + Cos($betaO) * Cos($beta) * Cos($Lon - $lonO))) ** 0.5;
+    $D = $a * (Cos($latO) / (1 - $e ** 2 * Sin($latO) ** 2) ** 0.5) / ($Rq * Cos($betaO));
+    $East = floor(($FE + (($b * $D) * (Cos($beta) * Sin($Lon - $lonO))))/100);
+    $North = floor(($FN + ($b / $D) * ((Cos($betaO) * Sin($beta)) - (Sin($betaO) * Cos($beta) * Cos($Lon - $lonO))))/100);
+    $Gridcell = "100mN{$North}E{$East}";
+    
+    return $Gridcell;
+  }
+  
 }