Adds box.schema.user.enable and box.schema.user.disable methods

doc/reference/reference_lua/box_schema.rst

@@ -53,6 +53,12 @@ Below is a list of all ``box.schema`` functions.
         *  - :doc:`./box_schema/user_revoke`
            - Revoke privileges from a user or a role
 
+        *  - :doc:`./box_schema/user_enable`
+           - Grant ``usage`` and ``session`` permissions
+
+        *  - :doc:`./box_schema/user_disable`
+           - Revoke ``usage`` and ``session`` permissions
+
         *  - :doc:`./box_schema/user_password`
            - Get a hash of a user's password
 
@@ -105,6 +111,8 @@ Below is a list of all ``box.schema`` functions.
     box_schema/user_exists
     box_schema/user_grant
     box_schema/user_revoke
+    box_schema/user_enable
+    box_schema/user_disable
     box_schema/user_password
     box_schema/user_passwd
     box_schema/user_info

doc/reference/reference_lua/box_schema/user_disable.rst

@@ -0,0 +1,29 @@
+.. _box_schema-user_disable:
+
+===============================================================================
+box.schema.user.disable()
+===============================================================================
+
+.. module:: box.schema
+
+.. function:: box.schema.user.disable(username)
+
+    Revokes ``usage`` and ``session`` permissions from the subject user. Equivalent to the following call:
+
+    ..  code-block:: lua
+
+        box.schema.user.revoke('{username}','usage,session','universe',nil,{if_not_exists=true})            
+
+    .. NOTE::
+
+       * ``session`` - (cannot be granted to a role) if is not granted, ``IPROTO_AUTH`` always fails connection to the user, so does ``box.session.su()``
+
+       * ``usage`` - (cannot be granted to a role) lets user use their privileges on database objects (e.g. read, write and alter space)
+
+    For more information about revoking permissions see section :ref:`box.schema.user.revoke <box_schema-user_revoke>`.
+
+    :param string username: the name of the subject user
+
+    :return: (if success) nothing
+
+             (if failure) The error is raised ``- error: User 'username' is not found``

doc/reference/reference_lua/box_schema/user_enable.rst

@@ -0,0 +1,29 @@
+.. _box_schema-user_enable:
+
+===============================================================================
+box.schema.user.enable()
+===============================================================================
+
+.. module:: box.schema
+
+.. function:: box.schema.user.enable(username)
+
+    Grants ``usage`` and ``session`` permissions to the subject user. Equivalent to the following call:
+
+    ..  code-block:: lua
+
+        box.schema.user.grant('{username}','usage,session','universe',nil,{if_not_exists=true})            
+
+    .. NOTE::
+
+       * ``session`` - (cannot be granted to a role) if is not granted, ``IPROTO_AUTH`` always fails connection to the user, so does ``box.session.su()``
+
+       * ``usage`` - (cannot be granted to a role) lets user use their privileges on database objects (e.g. read, write and alter space)
+
+    For more information about granting permissions see section :ref:`box.schema.user.grant <box_schema-user_grant>`.
+
+    :param string username: the name of the subject user
+
+    :return: (if success) nothing
+
+             (if failure) The error is raised ``- error: User 'username' is not found``

doc/reference/reference_lua/box_schema/user_grant.rst

@@ -31,7 +31,7 @@ box.schema.user.grant()
 
     **Variation:** instead of
     :samp:`box.schema.user.grant('{username}','usage,session','universe',nil,` :code:`{if_not_exists=true})`
-    say :samp:`box.schema.user.enable('{username}')`.
+    say :samp:`box.schema.user.enable('{username}')` (see section :ref:`box.schema.user.enable <box_schema-user_enable>`).
 
     The possible options are:
 

doc/reference/reference_lua/box_schema/user_revoke.rst

@@ -31,7 +31,7 @@ box.schema.user.revoke()
 
     **Variation:** instead of
     :samp:`box.schema.user.revoke('{username}','usage,session','universe',nil,` :code:`{if_exists=true})`
-    say :samp:`box.schema.user.disable('{username}')`.
+    say :samp:`box.schema.user.disable('{username}')` (see section :ref:`box.schema.user.disable <box_schema-user_disable>`).
 
     **Example:**