MDL-59204 analytics: changed get_name so that it returns a lang_string

This was done for indicators, targets and time splitting methods so that we
can get the string identifier and component in order to display a help_icon.

The functions were also made abstract, removing the default implementation.
Indicators, targets and time splitting methods should define this function.

analytics/classes/calculable.php

@@ -66,17 +66,15 @@ abstract class calculable {
     protected $sampledata = array();
 
     /**
-     * Returns a visible name for the indicator.
+     * Returns a lang_string object representing the name for the indicator or target.
      *
      * Used as column identificator.
      *
-     * Defaults to the indicator class name.
+     * If there is a corresponding '_help' string this will be shown as well.
      *
-     * @return string
+     * @return \lang_string
      */
-    public static function get_name() {
-        return '\\' . get_called_class();
-    }
+    public static abstract function get_name() : \lang_string;
 
     /**
      * The class id is the calculable class full qualified class name.

analytics/classes/local/time_splitting/base.php

@@ -77,14 +77,15 @@ abstract class base {
     abstract protected function define_ranges();
 
     /**
-     * The time splitting method name.
+     * Returns a lang_string object representing the name for the time splitting method.
      *
-     * It is very recommendable to overwrite this method as this name appears in the UI.
-     * @return string
+     * Used as column identificator.
+     *
+     * If there is a corresponding '_help' string this will be shown as well.
+     *
+     * @return \lang_string
      */
-    public function get_name() {
-        return $this->get_id();
-    }
+    public static abstract function get_name() : \lang_string;
 
     /**
      * Returns the time splitting method id.

analytics/tests/fixtures/test_indicator_fullname.php

@@ -33,6 +33,20 @@
  */
 class test_indicator_fullname extends \core_analytics\local\indicator\linear {
 
+    /**
+     * Returns a lang_string object representing the name for the indicator.
+     *
+     * Used as column identificator.
+     *
+     * If there is a corresponding '_help' string this will be shown as well.
+     *
+     * @return \lang_string
+     */
+    public static function get_name() : \lang_string {
+        // Using a string that exists and contains a corresponding '_help' string.
+        return new \lang_string('allowstealthmodules');
+    }
+
     /**
      * include_averages
      *

analytics/tests/fixtures/test_indicator_max.php

@@ -33,6 +33,20 @@
  */
 class test_indicator_max extends \core_analytics\local\indicator\binary {
 
+    /**
+     * Returns a lang_string object representing the name for the indicator.
+     *
+     * Used as column identificator.
+     *
+     * If there is a corresponding '_help' string this will be shown as well.
+     *
+     * @return \lang_string
+     */
+    public static function get_name() : \lang_string {
+        // Using a string that exists and contains a corresponding '_help' string.
+        return new \lang_string('allowstealthmodules');
+    }
+
     /**
      * calculate_sample
      *

analytics/tests/fixtures/test_indicator_min.php

@@ -33,6 +33,20 @@
  */
 class test_indicator_min extends \core_analytics\local\indicator\binary {
 
+    /**
+     * Returns a lang_string object representing the name for the indicator.
+     *
+     * Used as column identificator.
+     *
+     * If there is a corresponding '_help' string this will be shown as well.
+     *
+     * @return \lang_string
+     */
+    public static function get_name() : \lang_string {
+        // Using a string that exists and contains a corresponding '_help' string.
+        return new \lang_string('allowstealthmodules');
+    }
+
     /**
      * calculate_sample
      *

analytics/tests/fixtures/test_indicator_random.php

@@ -33,6 +33,20 @@
  */
 class test_indicator_random extends \core_analytics\local\indicator\binary {
 
+    /**
+     * Returns a lang_string object representing the name for the indicator.
+     *
+     * Used as column identificator.
+     *
+     * If there is a corresponding '_help' string this will be shown as well.
+     *
+     * @return \lang_string
+     */
+    public static function get_name() : \lang_string {
+        // Using a string that exists and contains a corresponding '_help' string.
+        return new \lang_string('allowstealthmodules');
+    }
+
     /**
      * calculate_sample
      *

analytics/tests/fixtures/test_static_target_shortname.php

@@ -38,6 +38,20 @@
  */
 class test_static_target_shortname extends test_target_shortname {
 
+    /**
+     * Returns a lang_string object representing the name for the indicator.
+     *
+     * Used as column identificator.
+     *
+     * If there is a corresponding '_help' string this will be shown as well.
+     *
+     * @return \lang_string
+     */
+    public static function get_name() : \lang_string {
+        // Using a string that exists and contains a corresponding '_help' string.
+        return new \lang_string('allowstealthmodules');
+    }
+
     /**
      * based_on_assumptions
      *

analytics/tests/fixtures/test_target_shortname.php

@@ -33,6 +33,20 @@
  */
 class test_target_shortname extends \core_analytics\local\target\binary {
 
+    /**
+     * Returns a lang_string object representing the name for the indicator.
+     *
+     * Used as column identificator.
+     *
+     * If there is a corresponding '_help' string this will be shown as well.
+     *
+     * @return \lang_string
+     */
+    public static function get_name() : \lang_string {
+        // Using a string that exists and contains a corresponding '_help' string.
+        return new \lang_string('allowstealthmodules');
+    }
+
     /**
      * predictions
      *

course/classes/analytics/indicator/no_teacher.php

@@ -43,12 +43,14 @@ class no_teacher extends \core_analytics\local\indicator\binary {
     protected $teacherroleids = null;
 
     /**
-     * get_name
+     * Returns the name.
      *
-     * @return string
+     * If there is a corresponding '_help' string this will be shown as well.
+     *
+     * @return \lang_string
      */
-    public static function get_name() {
-        return get_string('indicator:noteacher', 'moodle');
+    public static function get_name() : \lang_string {
+        return new \lang_string('indicator:noteacher', 'moodle');
     }
 
     /**

lib/classes/analytics/indicator/any_access_after_end.php

@@ -36,12 +36,14 @@
 class any_access_after_end extends \core_analytics\local\indicator\binary {
 
     /**
-     * get_name
+     * Returns the name.
      *
-     * @return string
+     * If there is a corresponding '_help' string this will be shown as well.
+     *
+     * @return \lang_string
      */
-    public static function get_name() {
-        return get_string('indicator:accessesafterend');
+    public static function get_name() : \lang_string {
+        return new \lang_string('indicator:accessesafterend');
     }
 
     /**

lib/classes/analytics/indicator/any_access_before_start.php

@@ -36,12 +36,14 @@
 class any_access_before_start extends \core_analytics\local\indicator\binary {
 
     /**
-     * get_name
+     * Returns the name.
      *
-     * @return string
+     * If there is a corresponding '_help' string this will be shown as well.
+     *
+     * @return \lang_string
      */
-    public static function get_name() {
-        return get_string('indicator:accessesbeforestart');
+    public static function get_name() : \lang_string {
+        return new \lang_string('indicator:accessesbeforestart');
     }
 
     /**

lib/classes/analytics/indicator/any_write_action.php

@@ -36,12 +36,14 @@
 class any_write_action extends \core_analytics\local\indicator\binary {
 
     /**
-     * get_name
+     * Returns the name.
      *
-     * @return string
+     * If there is a corresponding '_help' string this will be shown as well.
+     *
+     * @return \lang_string
      */
-    public static function get_name() {
-        return get_string('indicator:anywrite');
+    public static function get_name() : \lang_string {
+        return new \lang_string('indicator:anywrite');
     }
 
     /**

lib/classes/analytics/indicator/read_actions.php

@@ -36,12 +36,14 @@
 class read_actions extends \core_analytics\local\indicator\linear {
 
     /**
-     * get_name
+     * Returns the name.
      *
-     * @return string
+     * If there is a corresponding '_help' string this will be shown as well.
+     *
+     * @return \lang_string
      */
-    public static function get_name() {
-        return get_string('indicator:readactions');
+    public static function get_name() : \lang_string {
+        return new \lang_string('indicator:readactions');
     }
 
     /**

lib/classes/analytics/target/course_dropout.php

@@ -41,12 +41,14 @@
 class course_dropout extends \core_analytics\local\target\binary {
 
     /**
-     * get_name
+     * Returns the name.
      *
-     * @return string
+     * If there is a corresponding '_help' string this will be shown as well.
+     *
+     * @return \lang_string
      */
-    public static function get_name() {
-        return get_string('target:coursedropout');
+    public static function get_name() : \lang_string {
+        return new \lang_string('target:coursedropout');
     }
 
     /**

lib/classes/analytics/target/no_teaching.php

@@ -45,12 +45,14 @@ public static function based_on_assumptions() {
     }
 
     /**
-     * get_name
+     * Returns the name.
      *
-     * @return string
+     * If there is a corresponding '_help' string this will be shown as well.
+     *
+     * @return \lang_string
      */
-    public static function get_name() {
-        return get_string('target:noteachingactivity');
+    public static function get_name() : \lang_string {
+        return new \lang_string('target:noteachingactivity');
     }
 
     /**

lib/classes/analytics/time_splitting/deciles.php

@@ -36,12 +36,16 @@
 class deciles extends \core_analytics\local\time_splitting\equal_parts {
 
     /**
-     * get_name
+     * Returns a lang_string object representing the name for the time splitting method.
      *
-     * @return string
+     * Used as column identificator.
+     *
+     * If there is a corresponding '_help' string this will be shown as well.
+     *
+     * @return \lang_string
      */
-    public function get_name() {
-        return get_string('timesplitting:deciles');
+    public static function get_name() : \lang_string {
+        return new \lang_string('timesplitting:deciles');
     }
 
     /**

lib/classes/analytics/time_splitting/deciles_accum.php

@@ -36,12 +36,16 @@
 class deciles_accum extends \core_analytics\local\time_splitting\accumulative_parts {
 
     /**
-     * get_name
+     * Returns a lang_string object representing the name for the time splitting method.
      *
-     * @return string
+     * Used as column identificator.
+     *
+     * If there is a corresponding '_help' string this will be shown as well.
+     *
+     * @return \lang_string
      */
-    public function get_name() {
-        return get_string('timesplitting:decilesaccum');
+    public static function get_name() : \lang_string {
+        return new \lang_string('timesplitting:decilesaccum');
     }
 
     /**

lib/classes/analytics/time_splitting/no_splitting.php

@@ -40,12 +40,16 @@
 class no_splitting extends \core_analytics\local\time_splitting\base {
 
     /**
-     * get_name
+     * Returns a lang_string object representing the name for the time splitting method.
      *
-     * @return string
+     * Used as column identificator.
+     *
+     * If there is a corresponding '_help' string this will be shown as well.
+     *
+     * @return \lang_string
      */
-    public function get_name() {
-        return get_string('timesplitting:nosplitting');
+    public static function get_name() : \lang_string {
+        return new \lang_string('timesplitting:nosplitting');
     }
 
     /**

lib/classes/analytics/time_splitting/quarters.php

@@ -36,12 +36,16 @@
 class quarters extends \core_analytics\local\time_splitting\equal_parts {
 
     /**
-     * get_name
+     * Returns a lang_string object representing the name for the time spliting method.
      *
-     * @return string
+     * Used as column identificator.
+     *
+     * If there is a corresponding '_help' string this will be shown as well.
+     *
+     * @return \lang_string
      */
-    public function get_name() {
-        return get_string('timesplitting:quarters');
+    public static function get_name() : \lang_string {
+        return new \lang_string('timesplitting:quarters');
     }
 
     /**