Adds code to create relationship between logbook and location

application/controllers/Logbooks.php

@@ -59,6 +59,7 @@ class Logbooks extends CI_Controller {
 		$station_logbook_id = $this->security->xss_clean($id);
 
 		$station_logbook_details_query = $this->logbooks_model->logbook($station_logbook_id);
+		$data['station_locations_array'] = $this->logbooks_model->list_logbook_relationships($station_logbook_id);
 
 		$data['station_logbook_details'] = $station_logbook_details_query->row();
 		$data['station_locations_list'] = $this->stations->all();
@@ -80,16 +81,18 @@ class Logbooks extends CI_Controller {
             $data['notice'] = "Station Logbooks ".$this->security->xss_clean($this->input->post('station_logbook_name', true))." Updated";
 
 			foreach ($this->input->post('SelectedStationLocations') as $selectedOption){ 
-    			echo $selectedOption."\n";
-
 				// Check if theres already a link between logbook and location
-
-				// If no link exisits create
+				if($this->logbooks_model->relationship_exists($this->input->post('station_logbook_id'), $selectedOption) != TRUE) {
+					// If no link exisits create
+					$this->logbooks_model->create_logbook_location_link($this->input->post('station_logbook_id'), $selectedOption);
+				} else {
+					echo "Already Linked";
+				}
 
 				// Delete link if removed
 			}
 
-            //redirect('logbooks');
+            redirect('logbooks');
         }
 	}
 

application/models/Logbooks_model.php

@@ -53,5 +53,51 @@ class Logbooks_model extends CI_Model {
 		$this->db->where('logbook_id', $clean_id);
 		return $this->db->get('station_logbooks');
 	}
+
+
+	// Creates relationship between a logbook and a station location
+	function create_logbook_location_link($logbook_id, $location_id) {
+		// Create data array with field values
+		$data = array(
+			'station_logbook_id' => $logbook_id,
+			'station_location_id' =>  $location_id,
+		);
+
+		// Insert Record
+		$this->db->insert('station_logbooks_relationship', $data); 
+	}
+
+	function relationship_exists($logbook_id, $location_id) {
+		$this->db->where('station_logbook_id', $logbook_id);
+		$this->db->where('station_location_id', $location_id);
+		$query = $this->db->get('station_logbooks_relationship');
+		
+		if ($query->num_rows() > 0){
+			return true;
+		}
+		else{
+			return false;
+		}
+	}
+
+	function list_logbook_relationships($logbook_id) {
+
+		$relationships_array = array();
+
+		$this->db->where('station_logbook_id', $logbook_id);
+		$query = $this->db->get('station_logbooks_relationship');
+		
+		if ($query->num_rows() > 0){
+			foreach ($query->result() as $row)
+			{
+				array_push($relationships_array, $row->station_location_id);
+			}
+
+			return $relationships_array;
+		}
+		else{
+			return false;
+		}
+	}
 }
 ?>

application/views/logbooks/edit.php

@@ -45,7 +45,7 @@
 						<label for="StationLocationsSelect">Select Available Station Locations</label>
 						<select name="SelectedStationLocations[]" class="form-control" id="StationLocationsSelect" multiple aria-describedby="StationLocationSelectHelp">
 							<?php foreach ($station_locations_list->result() as $row) { ?>	
-								<option value="	<?php echo $row->station_id;?>"><?php echo $row->station_profile_name;?> (Callsign: <?php echo $row->station_callsign;?> DXCC: <?php echo $row->station_country;?>)</option>
+								<option value="<?php echo $row->station_id;?>" <?php if (in_array($row->station_id, $station_locations_array)) { echo "selected"; } ?>><?php echo $row->station_profile_name;?> (Callsign: <?php echo $row->station_callsign;?> DXCC: <?php echo $row->station_country;?>)</option>
 							<?php } ?>
 						</select>
 						<small id="StationLocationSelectHelp" class="form-text text-muted">Hold down the Ctrl (windows) or Command (Mac) button to select multiple options.</small>
@@ -55,9 +55,10 @@
 		</div>
 	</div>
 
+	<input type="hidden" class="form-control" name="station_logbook_id" value="<?php echo $station_logbook_details->logbook_id; ?>" required>	
 
 	<button type="submit" class="btn btn-primary"><i class="fas fa-plus-square"></i> Update Station Logbook</button>
 
 	</form>
 
-</div>
+</div>