Sugar Network/Resources: Difference between revisions

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 | [[File:Sugar-Network-diagram.png|200px|thumb|Sugar Network objects]]
 |}
+'''Resource.layer'''
+: This is an attempt to generalize the idea of [http://groups.google.com/group/sugar-network/browse_thread/thread/4cad05ec801f364c user/resource levels] with idea that objects should not be removed from the Network immediately (only hidden, and permanently removed by Network administrators). So, every resource is associated with a layer, i.e., it might be visible for observers only if they requested this layer and have permissions to see it.
+: For now, implemented only the following list of layers, but it might be reused for [http://groups.google.com/group/sugar-network/msg/f5a1b4d78494a5d3 teachers related workflows] later:
+:* ''general'', the default layer for observers and Network objects; all users can see objects on this layer;
+:* ''deleted'' Network objects' layer will be changed to {{Code|deleted}} after removing objects by users.
+'''Context.type'''
+: Context types:
+:* ''application'', software application;
+:* ''library'', software library;
+:* ''activity'', Sugar activity;
+:* ''article'', arbitrary content in a form of article.
+'''Context.license'''
+: Short license names. The licenses should conform with the [[Activity Library]] licensing [[Activity_Library/Editors/Policy/Licensing|policy]].
+'''Implementation.stability'''
+: Stability level of the Implementation. Values conform to [http://0install.net/interface-spec.html#id4016716 0install stability levels] and could be:
+:* ''insecure'',
+:* ''buggy'',
+:* ''developer'',
+:* ''testing'',
+:* ''stable''.
+'''Implementation.requires'''
+: What Contexts the current one depends on. Value is a dictionary of:
+   "''<Context-GUID>''": {
+     "''constraints''": [{             # optional array of constrains
+       "''not-before''": "''<VERSION>''",  # the lowest-numbered version that can be chosen
+       "''before''": "''<VERSION>''",      # this version and all later versions are unsuitable
+       }],
+     "''importance''":
+       "''essential''|''recommended''",    # dependency must be selected or no version is also an option
+   }
+'''Notification.type'''
+:* ''create'', object was created;
+:* ''update'', object's properties were modified;
+:* ''delete'', object was deleted (hidden);
+:* ''vote'', object was voted/unvoted.