diff --git a/build/database/repo/category.php b/build/database/repo/category.php
index b1abe50..9cf6b6e 100644
--- a/build/database/repo/category.php
+++ b/build/database/repo/category.php
@@ -41,14 +41,14 @@ class category extends Repo_i{
 											  			  JOIN UE U ON Cours.UE_code = U.code
 											  			  WHERE U.disabled = 0
 											  			  GROUP BY Prof.Categorie_idCategorie) VHCours ON VHCours.idCat = Cat.idCategorie
-											  			  
+
 											  LEFT JOIN (SELECT IFNULL(SUM(TD.volume),0) VHTd , Prof.Categorie_idCategorie idCat
 											  			FROM Professeur Prof
 											  			LEFT JOIN TD ON TD.Professeur_idProfesseur = Prof.idProfesseur
 											  			JOIN UE U2 ON TD.UE_code = U2.code
 											  			WHERE U2.disabled = 0
 											  			GROUP BY Prof.Categorie_idCategorie) VHTd ON VHTd.idCat = Cat.idCategorie
-											  			
+
 											  LEFT JOIN (SELECT IFNULL(SUM(TP.volume),0) VHTp, Prof.Categorie_idCategorie idCat
 											  			FROM Professeur Prof
 											  			LEFT JOIN TP ON TP.Professeur_idProfesseur = Prof.idProfesseur
@@ -68,4 +68,41 @@ class category extends Repo_i{
 		}
 	}
 
+
+	/* (4) Gets a category by its UID ||| getAll
+	*
+	* @cat_id<int>						[OPT] The category UID, if not set, getAll()
+	*
+	* @return categories<array>			The categories matching id (NULL on error)
+	*
+	---------------------------------------------------------*/
+	public function get(?int $cat_id=null) : ?array{
+
+		/* (1) Manage if no id given */
+		$cond = is_null($cat_id) ? '' : ' WHERE `idCategorie` = :id';
+		$parm = is_null($cat_id) ? [] : [':id' => $cat_id];
+
+		/* (2) Prepare Statement */
+		$st = $this->pdo->prepare("SELECT * FROM `Categorie`$cond ORDER BY `labelCategorie` ASC");
+
+		/* (3) Bind params and execute statement */
+		if( is_bool($st) ) return [];
+		$success = $st->execute($parm);
+
+		/* (4) Manage error */
+		if( !$success )
+			return [];
+
+		/* (5) Get data */
+		$fetched = $st->fetchAll();
+
+		/* (6) Return [] on no result */
+		if( $fetched === false )
+			return [];
+
+		/* (7) Return data */
+		return $fetched;
+
+	}
+
 }
\ No newline at end of file
diff --git a/build/database/repo/professor.php b/build/database/repo/professor.php
index 5d3a5fb..4f57daf 100644
--- a/build/database/repo/professor.php
+++ b/build/database/repo/professor.php
@@ -170,14 +170,14 @@ class professor extends Repo_i {
 	* @return teachers<array>			The professors matching id (NULL on error)
 	*
 	---------------------------------------------------------*/
-	public function get(?int $prof_id=null) : ?array{
+	public function get(?int $prof_id=null) : array{
 
 		/* (1) Manage if no id given */
 		$cond = is_null($prof_id) ? '' : ' WHERE `idProfesseur` = :id';
 		$parm = is_null($prof_id) ? [] : [':id' => $prof_id];
 
 		/* (2) Prepare Statement */
-		$st = $this->pdo->prepare("SELECT * FROM `Professeur`$cond GROUP BY abreviation ASC");
+		$st = $this->pdo->prepare("SELECT * FROM `Professeur`$cond ORDER BY abreviation ASC");
 
 		/* (3) Bind params and execute statement */
 		if( is_bool($st) ) return [];
@@ -265,14 +265,14 @@ class professor extends Repo_i {
 				 LEFT JOIN UE U ON Cours.UE_code = U.code
 			   GROUP BY Prof.idProfesseur, U.disabled
 			   HAVING (U.disabled = 0 OR U.disabled IS NULL)) VHCours,
-			
+
 			  (SELECT IFNULL(SUM(TD.volume),0) VHTd , Prof.idProfesseur idProf
 			   FROM Professeur Prof
 				 LEFT JOIN TD ON TD.Professeur_idProfesseur = Prof.idProfesseur
 				 LEFT JOIN UE U2 ON TD.UE_code = U2.code
 			   GROUP BY Prof.idProfesseur, U2.disabled
 			   HAVING (U2.disabled = 0 OR U2.disabled IS NULL)) VHTd,
-			
+
 			  (SELECT IFNULL(SUM(TP.volume),0) VHTp, Prof.idProfesseur idProf
 			   FROM Professeur Prof
 				 LEFT JOIN TP ON TP.Professeur_idProfesseur = Prof.idProfesseur