binding nested json object value to a form field

Posted by Jack on Stack Overflow See other posts from Stack Overflow or by Jack
Published on 2010-05-13T21:35:28Z Indexed on 2010/05/15 20:44 UTC
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I am building a dynamic form to edit data in a json object. First, if something like this exists let me know. I would rather not build it but I have searched many times for a tool and have found only tree like structures that require entering quotes. I would be happy to treat all values as strings. This edit functionality is for end users so it needs to be easy an not intimidating.

So far I have code that generates nested tables to represent a json object. For each value I display a form field. I would like to bind the form field to the associated nested json value. If I could store a reference to the json value I would build an array of references to each value in a json object tree. I have not found a way to do that with javascript.

My last resort approach will be to traverse the table after edits are made. I would rather have dynamic updates but a single submit would be better than nothing.

Any ideas?

// the json in files nests only a few levels. Here is the format of a simple case, { "researcherid_id":{ "id_key":"researcherid_id", "description":"Use to retrieve bibliometric data", "url_template" :[ { "name": "Author Detail", "url": "http://www.researcherid.com/rid/${key}" } ]
} }

$.get('file.json',make_json_form);

function make_json_form(response) {

dataset = $.secureEvalJSON(response); // iterate through the object and generate form field for string values.

}

// Then after the form is edited I want to display the raw updated json (then I want to save it but that is for another thread)

// now I iterate through the form and construct the json object // I would rather have the dataset object var updated on focus out after each edit.

function show_json(form_id){ var r = {}; var el = document.getElementById(form_id); table_to_json(r,el,null); $('body').html(formattedJSON(r)); }

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