[Days with QSOs] Fix if no QSOs found

application/models/Dayswithqso_model.php

@@ -9,6 +9,10 @@ class Dayswithqso_model extends CI_Model
 		$CI->load->model('logbooks_model');
 		$logbooks_locations_array = $CI->logbooks_model->list_logbook_relationships($this->session->userdata('active_station_logbook'));
 
+        if (!$logbooks_locations_array) {
+            return null;
+        }
+
 		$location_list = "'".implode("','",$logbooks_locations_array)."'";
 
         $sql = "select year(COL_TIME_ON) Year, COUNT(DISTINCT TO_DAYS(COL_TIME_ON)) as Days from "
@@ -25,6 +29,8 @@ class Dayswithqso_model extends CI_Model
      */
     function getCurrentStreak() {
         $dates = $this->getDates();
+
+        if ($dates) {
             $dates = array_reverse($dates);
             $streak = 1;
             $firstrun = true;
@@ -56,12 +62,15 @@ class Dayswithqso_model extends CI_Model
                 return null;
             }
         }
+    }
 
     /*
      * Function returns streak that ended yesterday, but can be continued if a qso is made today
      */
     function getAlmostCurrentStreak() {
         $dates = $this->getDates();
+
+        if  ($dates) {
             $dates = array_reverse($dates);
             $streak = 1;
             $firstrun = true;
@@ -94,6 +103,8 @@ class Dayswithqso_model extends CI_Model
             }
         }
 
+    }
+
     /*
      * Function returns the 10 longest streaks of QSOs based on all QSO dates in the log on active station profile
      */
@@ -103,6 +114,7 @@ class Dayswithqso_model extends CI_Model
         $dateprev = date_create('1900-01-01'); // init variable with an old date
         $i = 0;
 
+        if ($dates) {
             foreach($dates as $date) {      // Loop through the result set
                 $datecurr = date_create($date->date);
                 if ($dateprev == date_create('1900-01-01')) { // If first run
@@ -126,6 +138,8 @@ class Dayswithqso_model extends CI_Model
                 }
             }
         
+
+
             if (isset($streaks) && is_array($streaks)) {
                 usort($streaks, array($this,'compareStreak'));      // Sort array, highest streak first
                 $streaks_trimmed = array_slice($streaks, 0,10);  // We only want top 10, so we trim the array
@@ -134,6 +148,7 @@ class Dayswithqso_model extends CI_Model
                 return null;
             }
         }
+    }
 
     /*
      * Used for sorting the array highest streak first
@@ -150,6 +165,10 @@ class Dayswithqso_model extends CI_Model
 		$CI->load->model('logbooks_model');
 		$logbooks_locations_array = $CI->logbooks_model->list_logbook_relationships($this->session->userdata('active_station_logbook'));
 
+        if (!$logbooks_locations_array) {
+            return null;
+        }
+
 		$location_list = "'".implode("','",$logbooks_locations_array)."'";
 
         $sql = "select distinct cast(col_time_on as date) as date from "

assets/js/sections/dayswithqso.js

@@ -1,6 +1,7 @@
 $.ajax({
 	url: base_url + 'index.php/dayswithqso/get_days',
 	success: function (data) {
+		if ($.trim(data)) {
 			var labels = [];
 			var dataDxcc = [];
 			$.each(data, function () {
@@ -43,4 +44,5 @@ $.ajax({
 				}
 			});
 		}
+	}
 });