Method GetTeachersForDiscipline moved to Teachers model

~dev_rating/application/classes/Controller/Student/Index.php

@@ -38,8 +38,7 @@ class Controller_Student_Index extends Controller_UserEnvi {
     }
     
     protected function getTeachersForDiscipline($id) {
-        $model = new Model_Student;
-        $teachers = $model->getTeachersForDiscipline($id);
+        $teachers = Model_Teachers::ofDiscipline($id);
         $teachersHandled = array(); $i = 0;
         foreach ($teachers as $teacher)
         {

~dev_rating/application/classes/Controller/Student/Subject.php

@@ -115,8 +115,7 @@ class Controller_Student_Subject extends Controller_UserEnvi {
     }
     
     protected function getTeachersForDiscipline($id) {
-        $model = new Model_Student;
-        $teachers = $model->getTeachersForDiscipline($id);
+        $teachers = Model_Teachers::ofDiscipline($id);
         $teachersHandled = array(); $i = 0;
         foreach ($teachers as $teacher)
         {

~dev_rating/application/classes/Model/Student.php

@@ -14,12 +14,6 @@ class Model_Student extends Model
         return DB::query(Database::SELECT, $sql)->execute();
     }
     
-    public function getTeachersForDiscipline($discipline_id)
-    {
-        $sql = "CALL `GetTeachersForDiscipline`('$discipline_id'); ";
-        return DB::query(Database::SELECT, $sql)->execute();
-    }  
-    
     public function getSemesterInfo($id) // TODO: перенести в common.php
     {
         $sql = "CALL `GetSemesterInfo`('$id'); ";

~dev_rating/application/classes/Model/Teachers.php

@@ -16,11 +16,6 @@ class Model_Teachers extends Model
         return DB::query(Database::SELECT, $sql)->execute();
     }
 
-    public function getTeachersForDiscipline($disciplineID) {
-        $sql = "CALL `GetTeachersForDiscipline`('$disciplineID'); ";
-        return DB::query(Database::SELECT, $sql)->execute();
-    }
-
     public function getTeachersByFaculty($facultyID) {
         $sql = "CALL `GetTeachersByFaculty`('$facultyID'); ";
         return DB::query(Database::SELECT, $sql)->execute();
@@ -54,8 +49,17 @@ class Model_Teachers extends Model
         return new DataArray_Result($list);
     }
 
-    public function forDiscipline($disciplineID, $asConcat = false, $asInitials = false) {
-        $teachers = $this->getTeachersForDiscipline($disciplineID);
+    /**
+     * @param $id int discipline id
+     * @return Database_Result select from <tt>view_disciplines_teachers</tt> table
+     */
+    public static function ofDiscipline($id) {
+        $sql = "CALL `GetTeachersForDiscipline`('$id'); ";
+        return DB::query(Database::SELECT, $sql)->execute();
+    }
+
+    public static function forDiscipline($disciplineID, $asConcat = false, $asInitials = false) {
+        $teachers = self::ofDiscipline($disciplineID);
         $list = array();
 
         foreach ($teachers as $row) {