[jira] [Commented] (ARIA-262) Inconsistent node attributes behavior

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/ARIA-262?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16036313#comment-16036313 ] 

ASF GitHub Bot commented on ARIA-262:
-------------------------------------

Github user mxmrlv commented on a diff in the pull request:

    https://github.com/apache/incubator-ariatosca/pull/141#discussion_r120013538
  
    --- Diff: aria/storage/sql_mapi.py ---
    @@ -93,7 +94,7 @@ def list(self,
     
             return ListResult(
                 dict(total=total, size=size, offset=offset),
    -            results
    +            [self._instrument(result) for result in results]
             )
     
         def iter(self,
    --- End diff --
    
    consider adding instrumentation


> Inconsistent node attributes behavior
> -------------------------------------
>
>                 Key: ARIA-262
>                 URL: https://issues.apache.org/jira/browse/ARIA-262
>             Project: AriaTosca
>          Issue Type: Story
>            Reporter: Maxim Orlov
>            Assignee: Maxim Orlov
>
> ARIA provides sugaring for node attributes. However this sugaring is somewhat limited, as it sugars ctx accessed attributes. e.g. Under NodeOperationContext {{ctx.node.attributes}} has a dict-like behavior, where the value is another object with a dict-like behavior. This is provided by the sugaring. 
> However {{ctx.node.relationships[0].target_node.attributes}} provides a dict where the value is of type Parameter, accessing the value of this Parameter requires {{param.value}} This creates inconsistency with regards to access to attributes.
> There are several possible solutions:
> 1. Enable sugaring on the model level. this will effectively make the creation of Parameter implicit, but this will be possible throughout the entire code (not only under context).
> 2. Enable sugaring by tapping to sqla events and altering the return values. 



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