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Updated valid element test for GetValuesAtPath. #21

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Updated valid element test for GetValuesAtPath. #21

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38 changes: 21 additions & 17 deletions functions/JSON.GetValuesAtPath.fmfn
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Original file line number Diff line number Diff line change
Expand Up @@ -3,11 +3,15 @@
* returns list containing only the values at that path
*
* @param {array} array a valid JSON Array of objects
* @param {string} the path to the property you want to list
* @param {path} the path to the property you want to list
*
* @module fm-json-additions
* @see https://github.com/geistinteractive/fm-json-additions
*
* @history 2018-08-15, eshagdar, NYHTC
* - Improved test for result of getting JSON element ( still not perfect, but better ).
* - Use If ( instead of Case ) for binary test.
* - Updated param documentation.
* @history 2017-05-16, [email protected], fixes gh #5, #4
* @history 2017-04-01, [email protected], created
*
Expand All @@ -16,20 +20,20 @@


Let ( [

notValid = Left ( JSONFormatElements ( array ) ; 1 ) = "?" ;
c = ValueCount ( JSONListValues ( array ; "" ) ) ;
notValid = Left ( JSONFormatElements ( array ) ; 1 ) = "?" ;
numObj = ValueCount ( JSONListValues ( array ; "" ) ) ;

thisItem = JSONGetElement ( array ; numObj - 1 ) ;
newArray = JSONDeleteElement ( array ; numObj - 1 ) ;
prop = JSONGetElement ( thisItem ; path ) ;
prop = If ( Left ( prop ; 26 ) = "? in Json::Value::operator" ; ""; prop )
];

thisItem = JSONGetElement ( array ; c - 1 ) ;
newArray = JSONDeleteElement ( array ; c - 1 ) ;
prop = JSONGetElement ( thisItem ; path ) ;
prop = If ( Left ( prop ; 1 ) = "?" ; ""; prop )

];

Case (
c < 1 or notValid ; "" ;
List ( JSON.GetValuesAtPath ( newArray ; path ) ; prop )
) //end case

) //end let
If ( numObj < 1 or notValid ;
"" ;
List (
JSON.GetValuesAtPath ( newArray ; path ) ;
prop
)
)
)