add mysqltasks and pgsqltasks with placeholders for the real tasks

gnuviechadmin/pgsqltasks/__init__.py

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+"""
+This module contains :py:mod:`pgsqltasks.tasks`.
+
+"""

gnuviechadmin/pgsqltasks/models.py

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+"""
+Empty models to make Django accept pgsqltasks as an app.
+
+"""

gnuviechadmin/pgsqltasks/tasks.py

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+"""
+This module defines Celery_ tasks to manage PostgreSQL users and databases.
+
+"""
+from __future__ import absolute_import
+
+from celery import shared_task
+
+
+@shared_task
+def create_pgsql_user(username, password):
+    """
+    This task creates a new PostgreSQL user.
+
+    :param str username: the user name
+    :param str password: the password
+    :return: the created user's name
+    :rtype: str
+
+    """
+
+
+@shared_task
+def set_pgsql_userpassword(username, password):
+    """
+    Set a new password for an existing PostgreSQL user.
+
+    :param str username: the user name
+    :param str password: the password
+    :return: True if the password could be set, False otherwise
+    :rtype: boolean
+
+    """
+
+
+@shared_task
+def delete_pgsql_user(username):
+    """
+    This task deletes an existing PostgreSQL user.
+
+    :param str username: the user name
+    :return: True if the user has been deleted, False otherwise
+    :rtype: boolean
+
+    """
+
+
+@shared_task
+def create_pgsql_database(dbname, username):
+    """
+    This task creates a new PostgreSQL database for the given PostgreSQL user.
+
+    :param str dbname: database name
+    :param str username: the user name of an existing PostgreSQL user
+    :return: the database name
+    :rtype: str
+
+    """
+
+
+@shared_task
+def delete_pgsql_database(dbname, username):
+    """
+    This task deletes an existing PostgreSQL database and revokes privileges of
+    the given user on that database.
+
+    :param str dbname: database name
+    :param str username: the user name of an existing PostgreSQL user
+    :return: True if the database has been deleted, False otherwise
+    :rtype: boolean
+
+    """