[repo.professor] added getByLogin (for CAS authentication check)

build/database/repo/professor.php

@@ -197,7 +197,41 @@ class professor extends Repo_i {
 
 
 
-	/* (6) Gets all professors
+	/* (6) Gets a professor by its CAS login
+	*
+	* @cas_login<String>				The professor's CAS login
+	*
+	* @return teacher<array>			The professor's data (NULL on error / not found)
+	*
+	---------------------------------------------------------*/
+	public function getByLogin(String $cas_login) : ?array{
+
+		/* (1) Prepare Statement */
+		$st = $this->pdo->prepare("SELECT * FROM `Professeur` WHERE `casLogin` = :cas_login");
+
+		/* (2) Bind params and execute statement */
+		$success = $st->execute([ ':cas_login' => $cas_login ]);
+
+		/* (3) Manage error */
+		if( !$success )
+			return NULL;
+
+		/* (4) Get data */
+		$fetched = $st->fetch();
+
+		/* (5) Return NULL on no result */
+		if( $fetched === false )
+			return NULL;
+
+		/* (6) Return data */
+		return $fetched;
+
+	}
+
+
+
+
+	/* (7) Gets all professors
 	*
 	* @return teachers<array>			The professors' data ([] on error)
 	*
@@ -219,7 +253,7 @@ class professor extends Repo_i {
 
 
 
-	/* (7) Deletes a professor
+	/* (8) Deletes a professor
 	*
 	* @return deleted<bool>				Whether the professor have been deleeted successfully
 	*
@@ -237,7 +271,7 @@ class professor extends Repo_i {
 
 
 
-	/* (8) Returns a professor's statistic data
+	/* (9) Returns a professor's statistic data
 	*
 	* @return data<array>				Professor data
 	*