Support passing arguments to the document, document cache and document signatures storage backends. New settings: DOCUMENTS_STORAGE_BACKEND_ARGUMENTS, DOCUMENTS_CACHE_STORAGE_BACKEND_ARGUMENTS, SIGNATURES_STORAGE_BACKEND_ARGUMENTS

Signed-off-by: Michael Price <loneviking72@gmail.com>

HISTORY.rst

@@ -114,7 +114,9 @@
   revoke permissions for the selected role.
 - Only show the new document link if the user has access to create documents of
   at least one document type. GitLab Issue #302. Thanks to kg @kgraves.
-- Remove the data filters feature.
+- Support passing arguments to the document, document cache and document signatures
+  storage backends. New settings: DOCUMENTS_STORAGE_BACKEND_ARGUMENTS,
+  DOCUMENTS_CACHE_STORAGE_BACKEND_ARGUMENTS, SIGNATURES_STORAGE_BACKEND_ARGUMENTS
 
 2.7.3 (2017-09-11)
 ==================

mayan/apps/document_signatures/runtime.py

@@ -1,5 +1,17 @@
+from __future__ import unicode_literals
+
+import yaml
+
 from django.utils.module_loading import import_string
 
-from .settings import setting_storage_backend
+from .settings import (
+    setting_storage_backend, setting_storage_backend_arguments
+)
 
-storage_backend = import_string(setting_storage_backend.value)()
+storage_backend = import_string(
+    dotted_path=setting_storage_backend.value
+)(
+    **yaml.safe_load(
+        setting_storage_backend_arguments.value or '{}'
+    )
+)

mayan/apps/document_signatures/settings.py

@@ -9,3 +9,7 @@ setting_storage_backend = namespace.add_setting(
     global_name='SIGNATURES_STORAGE_BACKEND',
     default='storage.backends.filebasedstorage.FileBasedStorage'
 )
+setting_storage_backend_arguments = namespace.add_setting(
+    global_name='SIGNATURES_STORAGE_BACKEND_ARGUMENTS',
+    default=''
+)

mayan/apps/documents/runtime.py

@@ -1,6 +1,26 @@
+from __future__ import unicode_literals
+
+import yaml
+
 from django.utils.module_loading import import_string
 
-from .settings import setting_cache_storage_backend, setting_storage_backend
+from .settings import (
+    setting_cache_storage_backend, setting_cache_storage_backend_arguments,
+    setting_storage_backend, setting_storage_backend_arguments
+)
 
-storage_backend = import_string(setting_storage_backend.value)()
-cache_storage_backend = import_string(setting_cache_storage_backend.value)()
+storage_backend = import_string(
+    dotted_path=setting_storage_backend.value
+)(
+    **yaml.safe_load(
+        setting_storage_backend_arguments.value or '{}'
+    )
+)
+
+cache_storage_backend = import_string(
+    dotted_path=setting_cache_storage_backend.value
+)(
+    **yaml.safe_load(
+        setting_cache_storage_backend_arguments.value or '{}'
+    )
+)

mayan/apps/documents/settings.py

@@ -47,6 +47,10 @@ setting_storage_backend = namespace.add_setting(
     global_name='DOCUMENTS_STORAGE_BACKEND',
     default='storage.backends.filebasedstorage.FileBasedStorage'
 )
+setting_storage_backend_arguments = namespace.add_setting(
+    global_name='DOCUMENTS_STORAGE_BACKEND_ARGUMENTS',
+    default=''
+)
 setting_zoom_percent_step = namespace.add_setting(
     global_name='DOCUMENTS_ZOOM_PERCENT_STEP', default=25,
     help_text=_(
@@ -78,6 +82,10 @@ setting_cache_storage_backend = namespace.add_setting(
     global_name='DOCUMENTS_CACHE_STORAGE_BACKEND',
     default='documents.storage.LocalCacheFileStorage'
 )
+setting_cache_storage_backend_arguments = namespace.add_setting(
+    global_name='DOCUMENTS_CACHE_STORAGE_BACKEND_ARGUMENTS',
+    default=''
+)
 setting_language = namespace.add_setting(
     global_name='DOCUMENTS_LANGUAGE', default='eng',
     help_text=_('Default documents language (in ISO639-2 format).')