Brian Dunning's FileMaker Custom Functions

ParseCFParams ( paramStringJSON )

Provides a unified, if slightly idiosyncratic, method for passing multiple JSON params into a CF.

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Richard Dyce   Richard Dyce - Show more from this author
Dyce & Sons Ltd.
http://dyce.com

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  Sample input:
ParseCFParams ( JSONSetElement ( "" ; [ "name" ; "Richard" ; JSONString ]; [ "stuff" ; JSONSetElement ( "" ; [ "name" ; "Richard" ; JSONString ]; [ "Age" ; "51.999" ; JSONString ]; [ "Favourite Colour" ; "Teal" ; JSONString ] ) ; JSONRaw ]; [ "Age" ; "51.999" ; JSONString ]; [ "Favourite Colour" ; "Teal" ; JSONString ] ) )
  Sample output:
4

// plus these variable assignments as side_effects

$stuff = {"Age":"51.999","Favourite Colour":"Teal","name":"Richard"}
$name = Richard
$Favourite_Colour = Teal
$args = 4¶51.999¶Teal¶Richard¶{"Age":"51.999","Favourite Colour":"Teal","name":"Richard"}
$Age = 51.99

  Function definition: (Copy & paste into FileMaker's Edit Custom Function window)

Converts a JSON string parameter into local variables

1. it uses the JSON keys to create local variables ;
2. it also save the list of param values in $args ;
3. it returns the param count ;
4. it preserves JSON object parameters ; and
5. it returns -1 on an empty string or JSON error.

 

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