I'm a jQuery/jSON newby. I'm using jQuery getJSON() to do an AJAX request on
a separate PHP script, then I want to use the returned jSON object data to
update some form fields. I'm sure this is very basic and common, but I've
been reading doco. for days and can't get it to work.
Here's the local AJAX request - it's sending a local variable to the PHP
script and it has no callback function:
var objJson = $.getJSON('ajax/set_usr_fields.php', {ety_id:etyId});
Here is what is returned from the PHP script, according to the Firebug
console, it's what I intended (I've pasted this into a jSON validator and it
is valid jSON):
{"fields":{"ETY_ID":"2","ETY_NM":"A-001","DISPL_NM":"Sammys","LONG_DESC":"Some
text
here","C_CODE":"61","A_CODE":"5","PHONE":"778908","FAX":"","ADDRESS1":"11
Ward Park
Drive","CITY":"Somerton","STATE":"VIC","POSTCODE":"3912","CTRY_NM":"Australia","CTRY_CODE":"AU",
"PLIST":"default","TERRITORY":"Mornington
Peninsula","CONSULTANT":"galbraid"}}
I've added the following line to the local javascript to have a look at
what's returned (I understand it should be a jSON object, since I used
getJSON() ):
console.debug(objJson);
And here is what the Firebug console shows (sorry, the formatting didn't
work too well):
channel [xpconnect wrapped nsIChannel]
multipart false
onerror null
onload null
onprogress null
onreadystatechange null
readyState 4
responseText
"{"fields":{"ETY_ID":"2","ETY_NM":"A-001","DISPL_NM":"Sealite","LONG_DESC":"The
big Kahuna!","C_CODE"..."
responseXML null
status 200
statusText "OK"
abort abort()
addEventListener addEventListener()
dispatchEvent dispatchEvent()
getAllResponseHeaders getAllResponseHeaders()
getInterface getInterface()
getResponseHeader getResponseHeader()
open function()
overrideMimeType overrideMimeType()
removeEventListener removeEventListener()
send send()
setRequestHeader setRequestHeader()
So far, not so good. I expected the jSON string to be converted to an object
I could access with dot notation (again, because I used getJSON()). In fact,
I can't even access the simple jSON string, as I tried this:
console.log(objJson.responseText);
I get "undefined"
I've been stuck on this for days, can anyone point out what I'm not
understanding, please?
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