general: import get_user_from_api_query_string as needed (#6726)

Avoids circular imports (the right fix will be to move the api directory stuff
out of api.py, or move get_user_from_api_query_string to another file).

wcs/backoffice/root.py

@@ -54,7 +54,6 @@ import wcs.admin.workflows
 
 from wcs import data_sources
 
-from wcs.api import get_user_from_api_query_string
 
 
 try:
@@ -1205,6 +1204,7 @@ class FormPage(Directory):
 
     def json(self):
         get_response().set_content_type('application/json')
+        from wcs.api import get_user_from_api_query_string
         user = get_user_from_api_query_string() or get_request().user
         selected_filter = self.get_filter_from_query(default='all')
         criterias = self.get_criterias_from_query()

wcs/forms/common.py

@@ -19,7 +19,6 @@ from quixote.directory import Directory
 from quixote.html import TemplateIO, htmltext
 
 from wcs.fields import WidgetField
-from wcs.api import get_user_from_api_query_string
 
 from qommon import template
 from qommon import get_logger
@@ -96,6 +95,7 @@ class FormStatusPage(Directory):
         session = get_session()
         mine = False
         if api_call:
+            from wcs.api import get_user_from_api_query_string
             user = get_user_from_api_query_string() or get_request().user
         else:
             user = get_request().user

wcs/forms/root.py

@@ -45,7 +45,6 @@ from wcs.formdef import FormDef
 from wcs.formdata import FormData
 from wcs.roles import logged_users_role
 from wcs.workflows import Workflow, EditableWorkflowStatusItem
-from wcs.api import get_user_from_api_query_string
 
 from qommon.admin.texts import TextsDirectory
 
@@ -1207,6 +1206,7 @@ class RootDirectory(AccessControlled, Directory):
         return r.getvalue()
 
     def json(self):
+        from wcs.api import get_user_from_api_query_string
         user = get_user_from_api_query_string() or get_request().user
         list_forms = []
 
@@ -1293,6 +1293,7 @@ class RootDirectory(AccessControlled, Directory):
         return r.getvalue()
 
     def categories_json(self):
+        from wcs.api import get_user_from_api_query_string
         user = get_user_from_api_query_string() or get_request().user
         list_categories = []
         charset = get_publisher().site_charset