UserOption : implement UserOption

Set UserOption variable to true to get username related to element
by ELEMENT.user_id.

labelstower/getter.py

+import os
+
 from typing import Dict, List
+
 from .request_db import send_query_to_db
 from . import bp
 
+if(os.environ["UserOption"]=="true"):
+    from .sqlStmtOptUser import queries, FORBIDEN_LABEL_ONLY, ALL_LABEL_TYPE
+else:
+    from .sqlStmt import queries, FORBIDEN_LABEL_ONLY, ALL_LABEL_TYPE
+
 
 def get_selected_elements(id_mandatory_labels: int, id_forbiden_labels: str, number_of_mandatory_labels: str) -> List[Dict[int, str]] :
     """
@@ -24,53 +32,9 @@ def get_selected_elements(id_mandatory_labels: int, id_forbiden_labels: str, num
     """
     #query slightly vary if number_of_mandatory_labels > 0 or not
     if(number_of_mandatory_labels):
-        query = '''
-                    SELECT 
-                        ELEMENT.*
-                    FROM 
-                        ELEMENT 
-                            INNER JOIN 
-                        ELEMENT_LABEL 
-                                ON ELEMENT.id=ELEMENT_LABEL.id_element 
-                    WHERE 
-                            id_label IN ({}) 
-                        AND 
-                            id_element NOT IN (
-                                            SELECT 
-                                                id_element 
-                                            FROM 
-                                                ELEMENT 
-                                                    INNER JOIN 
-                                                ELEMENT_LABEL 
-                                                        ON ELEMENT.id=ELEMENT_LABEL.id_element
-                                            WHERE 
-                                                id_label IN ({})) 
-                                            GROUP BY id_element 
-                                            HAVING COUNT(*) = {} 
-                                            Order BY element_name
-        '''.format(id_mandatory_labels, id_forbiden_labels, number_of_mandatory_labels)
+        query = queries[ALL_LABEL_TYPE].format(id_mandatory_labels, id_forbiden_labels, number_of_mandatory_labels)
     else:
-        query = '''
-                    SELECT 
-                        ELEMENT.*
-                    FROM 
-                        ELEMENT 
-                            INNER JOIN 
-                        ELEMENT_LABEL 
-                                ON ELEMENT.id = ELEMENT_LABEL.id_element 
-                    WHERE 
-                        id_element NOT IN (
-                                        SELECT 
-                                            id_element 
-                                        FROM 
-                                            ELEMENT 
-                                                INNER JOIN 
-                                            ELEMENT_LABEL 
-                                                    ON ELEMENT.id = ELEMENT_LABEL.id_element
-                                        WHERE  id_label IN ({}) )
-                    GROUP BY ELEMENT.id 
-                    ORDER BY element_name ASC
-        '''.format(id_forbiden_labels)
+        query = queries[FORBIDEN_LABEL_ONLY].format(id_forbiden_labels)
 
     selected_elements = send_query_to_db(query)
     return selected_elements