Solved

Coldfusion $.ajax delete from data string of values

Posted on 2014-03-08
6
386 Views
Last Modified: 2014-03-08
I'm submitting two types of fields...

1. Main Categories
2. Sub-Categories

I've created a form that submits the data just fine to the function below. The example data might be...

cat_48=0&rec_174=1&cat_47=0&rec_172=1&rec_173=0

I'm a little stuck on separating the two out with deleting them from two separate tables on my func_data.cfm page. So if it's "cat_..." delete from one table. If it's "rec_..." delete from the other. I was thinking I could treat the data as a list and loop through it but it's not a list

function delete_cats_and_records() {

    myDataString = $("#userData").serialize();

    $.ajax({
        type: "POST",
        url: "func/func_data.cfm",
        data: myDataString,
        cache: false,
        success: function() {
            getData();
        },
        error: function (xhr, ajaxOptions, thrownError) {
        alert(xhr.status);
        alert(thrownError);
        }
    })
};

Open in new window

0
Comment
Question by:brihol44
  • 3
  • 3
6 Comments
 
LVL 52

Expert Comment

by:_agx_
ID: 39915088
Yeah, since the fields have unique names you need to loop through the URL parameters and search for patterns in the name, like this (not tested):

       <cfloop collection="#URL#" item="param">
           <!-- split out field name and id:  "cat" and "48">
           <cfset name = getToken(param, 1, "_")>
           <cfset id = getToken(param, 2, "_")>
           <cfset value = URL[param]>

           <!--- its a category with a valid ID ...--->
           <cfif name eq "cat" and ID gt 0>
                  CATEGORY: do something with #id# and #value# ...

           <cfelseif name eq "rec" and ID gt 0>
                  REC: do something with #id# and #value# ...
           </cfif>

       </cfloop>

But I'm wondering if there's an easier way ... I'm assuming the 48 in "cat_48=0" represents a category id. What does the value ie 0/1 represent?
0
 

Author Comment

by:brihol44
ID: 39915109
thx for the help. 0 = don't delete (default value), 1 = delete.
0
 
LVL 52

Accepted Solution

by:
_agx_ earned 300 total points
ID: 39915127
(Edit - fixed code typo)

Silly question. If 0 means don't delete/do nothing, why pass those fields at all? It's simpler to only pass id's to be deleted as a list.  Use one for "cat" and one for "rec".  So instead of this:

        cat_48=0&rec_174=1&cat_47=0&rec_172=1&rec_173=0

Pass two lists:
       catIDList=(empty string)&recIDList = 174,172

I don't know what type of fields you're using, but if they're checkboxes it's simple. Just use the same name and set the value to the cat/recID.

         <input type="checkbox" name="catIDList" value="48" ...
         <input type="checkbox" name="catIDList" value="99" ...

         <input type="checkbox" name="recIDList" value="174" ...
         <input type="checkbox" name="recIDList" value="172" ...

On the action page the field will contain just id's that were selected.  Then you can use list functions or pass the id's into a WHERE IN (...) clause if your'e deleting them from a table, ie
      <cfparam name="FORM.catIDList" default="">
      <cfparam name="FORM.recIDList" default="">

      <cfif ListLen(FORM.catIDList)>
            <cfquery ...>
              DELETE FROM Table
             WHERE  categoryID IN ( <cfqueryparam value="#catList#" list="true" ....> )
           </cfquery>
      </cfif>
0
Master Your Team's Linux and Cloud Stack!

The average business loses $13.5M per year to ineffective training (per 1,000 employees). Keep ahead of the competition and combine in-person quality with online cost and flexibility by training with Linux Academy.

 

Author Comment

by:brihol44
ID: 39915157
Ok agx.. that makes sense, cleaner and something I'm more familiar on how to do on the func_data.cfm page. I guess I didn't know how to do that (lists) using jquery with using the

myDataString = $("#userData").serialize(); to grab the values.

function delete_cats_and_records() {

    myDataString = $("#userData").serialize();

    $.ajax({
        type: "POST",
        url: "func/func_data.cfm",
        data: myDataString,
        cache: false,
        success: function() {
            getData();
        },
        error: function (xhr, ajaxOptions, thrownError) {
        alert(xhr.status);
        alert(thrownError);
        }
    })
};

Open in new window

0
 
LVL 52

Expert Comment

by:_agx_
ID: 39915400
Sorry I had to run out.  Hm.. I'm not sure serialize will work here if it assigns elements unique names. Might have to generate the list yourself using something like this:

http://www.experts-exchange.com/Programming/Languages/Scripting/JavaScript/Jquery/Q_24225776.html
0
 

Author Closing Comment

by:brihol44
ID: 39915458
thx Agx... I figured out the jquery list thing on my own.
0

Featured Post

Courses: Start Training Online With Pros, Today

Brush up on the basics or master the advanced techniques required to earn essential industry certifications, with Courses. Enroll in a course and start learning today. Training topics range from Android App Dev to the Xen Virtualization Platform.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

PROBLEM:  How to open a cfwindow or run a function on double click of a cfgrid row. One of my clients wanted to be able to double click on a row item to get more detailed information about a transaction and to be able to modify the line items i…
Hi, Even though I have created this Tutorial on My personal Blog, Some people might not able to find my website, So here i am posting it again Today, from the topic it is very clear that i will be showing you here the very basic usage of how we …
This video shows how to quickly and easily add an email signature for all users on Exchange 2016. The resulting signature is applied on a server level by Exchange Online. The email signature template has been downloaded from: www.mail-signatures…
Email security requires an ever evolving service that stays up to date with counter-evolving threats. The Email Laundry perform Research and Development to ensure their email security service evolves faster than cyber criminals. We apply our Threat…

776 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question