DB namesake checking + php stubs (see #61)

db/stored/functions.sql

@@ -447,6 +447,39 @@ END //
 # -------------------------------------------------------------------------------------------
 
 
+DROP FUNCTION IF EXISTS CheckNamesake//
+CREATE FUNCTION `CheckNamesake` (
+    `pLastName` VARCHAR(30) CHARSET utf8,
+    `pFirstName` VARCHAR(30) CHARSET utf8,
+    `pSecondName` VARCHAR(30) CHARSET utf8,
+    `pType` enum ('student', 'teacher')
+) RETURNS BOOLEAN # TRUE - exist, FALSE - doesn't
+NO SQL
+BEGIN
+    -- default - pessimistic case
+    declare vRes boolean default false;
+    if pType = 'student' then
+        set vRes = exists(
+            select *
+            from `students`
+            where   students.LastName = pLastName
+                    AND students.FirstName = pFirstName
+                    AND students.SecondName = pSecondName
+            limit 1
+        );
+    else
+        set vRes = exists(
+            select *
+            from `teachers`
+            where   teachers.LastName = pLastName
+                    AND teachers.FirstName = pFirstName
+                    AND teachers.SecondName = pSecondName
+            limit 1
+        );
+    end if;
+
+    RETURN vRes;
+END //
 
 
 DROP FUNCTION IF EXISTS CheckAccountExistence//
@@ -614,13 +647,19 @@ CREATE FUNCTION `Teacher_Create` (
         `pSecondName` VARCHAR(30) CHARSET utf8,
         `pJobPositionID` INT,
         `pDepartmentID`  INT,
-        `pActivationCode` VARCHAR(40) CHARSET utf8
+        `pActivationCode` VARCHAR(40) CHARSET utf8,
+        `pCheckNameSake` bool
     ) RETURNS int(11) # 0 - success, <0 failed
     NO SQL
 BEGIN
     DECLARE vAccountID INT DEFAULT -1;
     DECLARE EXIT HANDLER FOR SQLEXCEPTION RETURN -1;
 
+    if pCheckNameSake && CheckNamesake(pLastName, pFirstName, pSecondName, 'teacher')
+    then
+        return -2;
+    end if;
+
     # TODO: kill magic constants (user role 2 - common teacher)
     # create account
     INSERT INTO `accounts`
@@ -680,13 +719,19 @@ CREATE FUNCTION `CreateStudent` (
     `pGroupNum` INT,
     `pFacultyID` INT,
     `pActivationCode` VARCHAR(40) CHARSET utf8,
-    `pSemesterID` INT
+    `pSemesterID` INT,
+    `pCheckNameSake` bool
 )   RETURNS int(11)
 NO SQL
 BEGIN
     DECLARE vAccountID, vGroupID, vStudentID, vSemesterID INT DEFAULT -1;
     DECLARE EXIT HANDLER FOR SQLEXCEPTION RETURN -1;
 
+    if pCheckNameSake && CheckNamesake(pLastName, pFirstName, pSecondName, 'student')
+    then
+        return -2;
+    end if;
+
     SET vGroupID = GetGroup(pGradeID, pGroupNum, pFacultyID);
     IF vGroupID <= 0 THEN
         RETURN -1;
@@ -2338,4 +2383,4 @@ BEGIN
     RETURN LAST_INSERT_ID();
 END //
 
-DELIMITER ;
\ No newline at end of file
+DELIMITER ;

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

@@ -28,12 +28,12 @@ class Model_Account extends Model
         return UTF8::strtoupper($activationCode);
     }
 
-    public static function createStudentEx($lastName, $firstName, $secondName, $gradeNum, $groupNum, $degree, $specialization, $facultyID, $semesterID = null) {
+    public static function createStudentEx($lastName, $firstName, $secondName, $gradeNum, $groupNum, $degree, $specialization, $facultyID, $semesterID = null, $namesake = true) {
         $code = self::generateActivationCode();
 
         if (!$semesterID) $semesterID = Model_System::$SemesterID;
 
-        $sql = "SELECT `CreateStudentEx`(:last, :first, :second, :grade, :group, :degree, :spec, :faculty, :code, :semester) AS `UserID`;";
+        $sql = "SELECT `CreateStudentEx`(:last, :first, :second, :grade, :group, :degree, :spec, :faculty, :code, :semester, :namesake) AS `UserID`;";
         $response = DB::query(Database::SELECT, $sql)
             ->parameters([
                 ':last'     => trim($lastName),
@@ -45,7 +45,8 @@ class Model_Account extends Model
                 ':spec'     => $specialization,
                 ':faculty'  => $facultyID,
                 ':code'     => $code,
-                ':semester' => $semesterID
+                ':semester' => $semesterID,
+                ':namesake' => $namesake
             ])->execute()->get('UserID');
 
         return $response == -1 ? -1 : $code;

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

@@ -40,11 +40,12 @@ class Model_Student extends Model_Container
         return new Model_Helper_StudentBuilder();
     }
 
-    protected function create() {
-        $sql = 'SELECT `CreateStudent`(LastName, FirstName, SecondName, GradeID, GroupNum, FacultyID, ActivationCode, SemesterID) AS `ID`';
+    protected function create($checkNameSake = true) {
+        $sql = 'SELECT `CreateStudent`(LastName, FirstName, SecondName, GradeID, GroupNum, FacultyID, ActivationCode, SemesterID, namesake) AS `ID`';
 
         $this->data[self::$ID_FIELD] = DB::query(Database::SELECT, $sql)
             ->parameters($this->data)
+            ->param('namesake', $checkNameSake)
             ->execute()->get('ID');
 
         if ($this->ID <= 0)

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

@@ -45,11 +45,12 @@ class Model_Teacher extends Model_Container
         return self::load($id);
     }
 
-    protected function create() {
-        $sql = 'SELECT `Teacher_Create`(LastName, FirstName, SecondName, JobPositionID, DepID, ActivationCode) AS `ID`';
+    protected function create($checkNameSake = true) {
+        $sql = 'SELECT `Teacher_Create`(LastName, FirstName, SecondName, JobPositionID, DepID, ActivationCode, namesake) AS `ID`';
 
         $this->data[self::$ID_FIELD] = DB::query(Database::SELECT, $sql)
             ->parameters($this->data)
+            ->param('namesake', $checkNameSake)
             ->execute()->get('ID');
 
         if ($this->ID <= 0)