Merge branch 'MDL-75358-master' of https://github.com/marinaglancy/moodle

course/classes/reportbuilder/local/formatters/completion.php

@@ -63,11 +63,11 @@ class completion {
     /**
      * Return number of days for methods daystakingcourse and daysuntilcompletion
      *
-     * @param int $value
+     * @param int|null $value
      * @param stdClass $row
      * @return int|null
      */
-    public static function get_days(int $value, stdClass $row): ?int {
+    public static function get_days(?int $value, stdClass $row): ?int {
         // Do not show anything if there is no userid.
         if (!$row->userid) {
             return null;

reportbuilder/classes/local/aggregation/avg.php

@@ -76,6 +76,9 @@ class avg extends base {
      * @return mixed
      */
     public static function format_value($value, array $values, array $callbacks, int $columntype) {
+        if (reset($values) === null) {
+            return null;
+        }
         if ($columntype === column::TYPE_BOOLEAN || empty($callbacks)) {
             return format_float((float) reset($values), 1);
         }

reportbuilder/classes/local/aggregation/groupconcat.php

@@ -111,6 +111,11 @@ class groupconcat extends base {
      * @return mixed
      */
     public static function format_value($value, array $values, array $callbacks, int $columntype) {
+        $firstvalue = reset($values);
+        if ($firstvalue === null) {
+            return '';
+        }
+
         $formattedvalues = [];
 
         // Store original names of all values that would be present without aggregation.
@@ -118,7 +123,7 @@ class groupconcat extends base {
         $valuenamescount = count($valuenames);
 
         // Loop over each extracted value from the concatenated string.
-        $values = explode(self::FIELD_VALUE_DELIMETER, (string) reset($values));
+        $values = explode(self::FIELD_VALUE_DELIMETER, (string)$firstvalue);
         foreach ($values as $value) {
 
             // Ensure we have equal number of value names/data, account for truncation by DB.

reportbuilder/classes/local/aggregation/percent.php

@@ -73,6 +73,9 @@ class percent extends base {
      * @return string
      */
     public static function format_value($value, array $values, array $callbacks, int $columntype): string {
+        if (reset($values) === null) {
+            return '';
+        }
         return format::percent((float) reset($values));
     }
 }

reportbuilder/classes/local/aggregation/sum.php

@@ -76,9 +76,13 @@ class sum extends base {
      * @return mixed
      */
     public static function format_value($value, array $values, array $callbacks, int $columntype) {
+        $firstvalue = reset($values);
+        if ($firstvalue === null) {
+            return null;
+        }
         if ($columntype === column::TYPE_BOOLEAN || empty($callbacks)) {
             $decimalpoints = (int) ($columntype === column::TYPE_FLOAT);
-            return format_float((float) reset($values), $decimalpoints);
+            return format_float((float) $firstvalue, $decimalpoints);
         }
 
         return parent::format_value($value, $values, $callbacks, $columntype);

reportbuilder/classes/local/helpers/format.php

@@ -32,32 +32,38 @@ class format {
     /**
      * Returns formatted date.
      *
-     * @param int $value Unix timestamp
+     * @param int|null $value Unix timestamp
      * @param stdClass $row
      * @param string|null $format Format string for strftime
      * @return string
      */
-    public static function userdate(int $value, stdClass $row, ?string $format = null): string {
+    public static function userdate(?int $value, stdClass $row, ?string $format = null): string {
         return $value ? userdate($value, $format) : '';
     }
 
     /**
      * Returns yes/no string depending on the given value
      *
-     * @param bool $value
+     * @param bool|null $value
      * @return string
      */
-    public static function boolean_as_text(bool $value): string {
+    public static function boolean_as_text(?bool $value): string {
+        if ($value === null) {
+            return '';
+        }
         return $value ? get_string('yes') : get_string('no');
     }
 
     /**
      * Returns float value as a percentage
      *
-     * @param float $value
+     * @param float|null $value
      * @return string
      */
-    public static function percent(float $value): string {
+    public static function percent(?float $value): string {
+        if ($value === null) {
+            return '';
+        }
         return get_string('percents', 'moodle', format_float($value));
     }
 }

reportbuilder/classes/local/report/column.php

@@ -479,7 +479,8 @@ final class column {
      * fields, and $additionalarguments are those passed on from this method):
      *
      * The type of the $value parameter passed to the callback is determined by calling {@see set_type}, this type is preserved
-     * if the column is part of a report source and is being aggregated
+     * if the column is part of a report source and is being aggregated.
+     * For entities that can to be left joined to a report, the first argument to their column callbacks must be nullable.
      *
      * function($value, stdClass $row[, $additionalarguments]): string
      *
@@ -649,6 +650,9 @@ final class column {
      */
     public static function get_default_value(array $values, int $columntype) {
         $value = reset($values);
+        if ($value === null) {
+            return $value;
+        }
 
         // Ensure default value is cast to it's strict type.
         switch ($columntype) {

reportbuilder/tests/local/helpers/user_profile_fields_test.php

@@ -206,7 +206,7 @@ class user_profile_fields_test extends core_reportbuilder_testcase {
         $this->assertEquals([
             [
                 'c0_firstname' => 'Admin',
-                'c1_data' => 'No',
+                'c1_data' => '',
                 'c2_data' => 'Not set',
                 'c3_data' => '',
                 'c4_data' => '',