Added CMS_HOOK_CACHE, and admin cache.

Prepared evolution of feed module, by allowing json object to list feeds locations.
   The associated key will be used to identify the location, and have category filter by location.

modules/admin/cms_admin_module.e

@@ -53,6 +53,8 @@ feature -- Access: router
 			l_user_handler: CMS_USER_HANDLER
 			l_role_handler:	CMS_ROLE_HANDLER
 
+			l_admin_cache_handler: CMS_ADMIN_CACHE_HANDLER
+
 			l_uri_mapping: WSF_URI_MAPPING
 		do
 			create l_admin_handler.make (a_api)
@@ -67,6 +69,10 @@ feature -- Access: router
 			create l_uri_mapping.make_trailing_slash_ignored ("/admin/roles", l_roles_handler)
 			a_router.map (l_uri_mapping, a_router.methods_get_post)
 
+			create l_admin_cache_handler.make (a_api)
+			create l_uri_mapping.make_trailing_slash_ignored ("/admin/cache", l_admin_cache_handler)
+			a_router.map (l_uri_mapping, a_router.methods_get_post)
+
 			create l_user_handler.make (a_api)
 			a_router.handle ("/admin/add/user", l_user_handler, a_router.methods_get_post)
 			a_router.handle ("/admin/user/{id}", l_user_handler, a_router.methods_get)
@@ -78,6 +84,8 @@ feature -- Access: router
 			a_router.handle ("/admin/role/{id}", l_role_handler, a_router.methods_get)
 			a_router.handle ("/admin/role/{id}/edit", l_role_handler, a_router.methods_get_post)
 			a_router.handle ("/admin/role/{id}/delete", l_role_handler, a_router.methods_get_post)
+
+
 		end
 
 feature -- Security
@@ -120,6 +128,13 @@ feature -- Hooks
 				lnk.set_permission_arguments (<<"manage " + {CMS_ADMIN_MODULE}.name>>)
 				a_menu_system.management_menu.extend (lnk)
 			end
+			if
+				a_response.has_permission ("admin cache") -- Note: admin user has all permissions enabled by default.
+			then
+				create lnk.make ("Cache", "admin/cache")
+				lnk.set_permission_arguments (<<"admin cache">>)
+				a_menu_system.management_menu.extend (lnk)
+			end
 		end
 
 note

modules/admin/handler/cms_admin_cache_handler.e

@@ -0,0 +1,101 @@
+note
+	description: "[
+			Administrate cache functionality.
+		]"
+	date: "$Date$"
+	revision: "$Revision$"
+
+class
+	CMS_ADMIN_CACHE_HANDLER
+
+inherit
+	CMS_HANDLER
+
+	WSF_URI_HANDLER
+		rename
+			new_mapping as new_uri_mapping
+		end
+
+	WSF_RESOURCE_HANDLER_HELPER
+		redefine
+			do_get,
+			do_post
+		end
+
+	REFACTORING_HELPER
+
+create
+	make
+
+feature -- Execution
+
+	execute (req: WSF_REQUEST; res: WSF_RESPONSE)
+			-- Execute request handler
+		do
+			execute_methods (req, res)
+		end
+
+	do_get (req: WSF_REQUEST; res: WSF_RESPONSE)
+		local
+			l_response: CMS_RESPONSE
+			s: STRING
+			f: CMS_FORM
+		do
+			create {GENERIC_VIEW_CMS_RESPONSE} l_response.make (req, res, api)
+			if l_response.has_permission ("admin cache") then
+				f := clear_cache_web_form (l_response)
+				create s.make_empty
+				f.append_to_html (create {CMS_TO_WSF_THEME}.make (l_response, l_response.theme), s)
+				l_response.set_main_content (s)
+			else
+				create {FORBIDDEN_ERROR_CMS_RESPONSE} l_response.make (req, res, api)
+			end
+			l_response.execute
+		end
+
+	do_post (req: WSF_REQUEST; res: WSF_RESPONSE)
+		local
+			l_response: CMS_RESPONSE
+			s: STRING
+			f: CMS_FORM
+		do
+			create {GENERIC_VIEW_CMS_RESPONSE} l_response.make (req, res, api)
+			if l_response.has_permission ("admin cache") then
+				f := clear_cache_web_form (l_response)
+				f.process (l_response)
+				if
+					attached f.last_data as fd and then
+					fd.is_valid
+				then
+					if attached fd.string_item ("op") as l_op and then l_op.same_string (text_clear_all_caches) then
+						l_response.hooks.invoke_clear_cache (Void, l_response)
+						l_response.add_notice_message ("Cache cleared!")
+					else
+						fd.report_error ("Invalid form data!")
+					end
+				end
+				create s.make_empty
+				f.append_to_html (create {CMS_TO_WSF_THEME}.make (l_response, l_response.theme), s)
+				l_response.set_main_content (s)
+			else
+				create {FORBIDDEN_ERROR_CMS_RESPONSE} l_response.make (req, res, api)
+			end
+			l_response.execute
+		end
+
+feature -- Widget
+
+	clear_cache_web_form (a_response: CMS_RESPONSE): CMS_FORM
+		local
+			but: WSF_FORM_SUBMIT_INPUT
+		do
+			create Result.make (a_response.url (a_response.location, Void), "form_clear_cache")
+			create but.make_with_text ("op", text_clear_all_caches)
+			Result.extend (but)
+		end
+
+feature -- Interface text.		
+
+	text_clear_all_caches: STRING_32 = "Clear all caches"
+
+end