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ROC/library/src/persistence/node/cms_node_storage.e
Jocelyn Fiat 7d5869f3b9 Revisited the persistence layer.
Simplified schema to focus on user and node.
Now possible to have sqlite via ODBC and/or mysql support, and select using configuration file.
Updated demo example.
2015-01-27 19:48:37 +01:00

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note
description: "Summary description for {CMS_NODE_STORAGE}."
author: ""
date: "$Date: 2015-01-27 19:15:02 +0100 (mar., 27 janv. 2015) $"
revision: "$Revision: 96542 $"
deferred class
CMS_NODE_STORAGE
inherit
SHARED_LOGGER
feature -- Error Handling
error_handler: ERROR_HANDLER
-- Error handler.
deferred
end
feature -- Access
nodes_count: INTEGER_64
-- Count of nodes.
deferred
end
nodes: LIST [CMS_NODE]
-- List of nodes.
deferred
end
recent_nodes (a_lower: INTEGER; a_count: INTEGER): LIST [CMS_NODE]
-- List of recent `a_count' nodes with an offset of `lower'.
deferred
end
node_by_id (a_id: INTEGER_64): detachable CMS_NODE
-- Retrieve node by id `a_id', if any.
require
a_id > 0
deferred
end
node_author (a_id: like {CMS_NODE}.id): detachable CMS_USER
-- Node's author. if any.
require
valid_node: a_id >0
deferred
end
feature -- Change: Node
save_node (a_node: CMS_NODE)
-- Create or update `a_node'.
do
if a_node.has_id then
update_node (a_node)
else
new_node (a_node)
end
end
new_node (a_node: CMS_NODE)
-- Save node `a_node'.
require
no_id: not a_node.has_id
valid_user: attached a_node.author as l_author and then l_author.id > 0
deferred
end
delete_node (a_node: CMS_NODE)
-- Delete `a_node'.
do
if a_node.has_id then
delete_node_by_id (a_node.id)
end
end
delete_node_by_id (a_id: INTEGER_64)
-- Remove node by id `a_id'.
require
valid_node_id: a_id > 0
deferred
end
update_node (a_node: CMS_NODE)
-- Update node content `a_node'.
-- The user `a_id' is an existing or new collaborator.
require
has_id: a_node.has_id
has_author: attached a_node.author as l_author and then l_author.has_id
deferred
end
update_node_title (a_user_id: like {CMS_USER}.id; a_node_id: like {CMS_NODE}.id; a_title: READABLE_STRING_32)
-- Update node title to `a_title', node identified by id `a_node_id'.
-- The user `a_user_id' is an existing or new collaborator.
require
valid_node_id: a_node_id > 0
valid_user_id: a_user_id > 0
deferred
end
update_node_summary (a_user_id: like {CMS_USER}.id; a_node_id: like {CMS_NODE}.id; a_summary: READABLE_STRING_32)
-- Update node summary to `a_summary', node identified by id `a_node_id'.
-- The user `a_user_id' is an existing or new collaborator.
require
valid_id: a_node_id > 0
valid_user_id: a_user_id > 0
deferred
end
update_node_content (a_user_id: like {CMS_USER}.id; a_node_id: like {CMS_NODE}.id; a_content: READABLE_STRING_32)
-- Update node content to `a_content', node identified by id `a_node_id'.
-- The user `a_user_id' is an existing or new collaborator.
require
valid_id: a_node_id > 0
valid_user_id: a_user_id > 0
deferred
end
end