Question on Postcode / Zipcode Filter in multi-page form

Hey there,

Firstly, Gravity forms are awesome. Great work guys..! Secondly, can you help solve a problem..?

As the first part of a multi-page form, I need to filter customers based on where they live within the United Kingdom and thereby if they are eligible for a service. The structure of the form needs to be as follows:

Firstly, the first page need contain only one field for postcode / zipcode. Is this possible with gravity forms?

Secondly, I need this field to check the users postcode or postcode prefix against a list of covered postcodes or postcode prefixes. Is this possible? How would I define the list? I'd guess manually. But how?

Thirdly, if they live in a postcode that is eligible, they should continue with the rest of the form. If the user is in a postcode that is ineligible, they should be shown a field saying 'sorry we don't presently cover your area'. Conditional logic makes your forms awesome, but given the postcode element, is this achievable?

Best,

MrHoneyfoot

Well that's reassuring. I don't fully understand Alex Cancado's snippet, or where it goes. Need some guidance on that. The two form solution sounds very neat.

Thank you illinoisharley. I like your website.

Secondly, I need this field to check the users postcode or postcode prefix against a list of covered postcodes or postcode prefixes. Is this possible? How would I define the list? I'd guess manually. But how?

How many postcodes will you be checking against? Let me know and I'll get you some sample code a little closer to your desired end goal.

@illinoisharley, thanks for all the assistance on the forums! You rock!

Now then, the lists have been made up. David Smith, I hope I'm not flying too close to the sun with this one. If you or anyone else thinks it's madness, let me know. Or has anybody heard of another solution?

Thanks for the snippet David Smith. I'm having two problems with it. Firstly, changing the field IDs as you directed makes the validation apply to every instance of that field ID across all forms. So is there a way for this validation to apply to only one unique form?

Secondly, is there a way for your code to validate only the prefix (first 2-4 characters)? People are going to input their full postcode but a full postcode list would be impractical (240,000 postcodes). Using the 240 postcode prefixes in the array means that any full postcode is invalidated, even if the prefix is in the array. So does anyone know of a way to make the validation apply only to the first 2-4 characters of the postcode, ignoring the rest?

Cheers guys.

Assuming that the post code prefix is broken up by some sort of designator (ie US post codes are 23462-1234), you could use the php explode() function to split the submitted zipcode and just test against the prefix.

http://php.net/manual/en/function.explode.php

Right then second array populated via mysql. My goal is to make that second validation result appear as a specific gforms validation_message.

Back to David Smith's last snippet. What I want to do is display a custom validation message if the postcode is in the second array. What we have so far is this:

http://www.pastie.org/1499817

So my question is how do I link the second in_array check to the validation message directly under it?

The form uses only the last validation message.

Fine on the first count. Not 100% sure the second array is being correctly populated. I have it like this:

http://www.pastie.org/1503163

Am I doing it wrong?

Just purchased a developers license of GF, and have a similar need to Mr. Honeyfoot.

Namely I have a simple, five-field form, the last field being a zipcode that will be used to drive the user to either a) one of two different price-list pages.... or b) to a single page that conditionally displays one of the two aforementioned price-lists.

Have the following questions:

1) Can a single GF form with both visible and invisible fields span MORE THAN ONE WordPress Page?

2) I have the JavaScript and Regular Expression code to do the Zipcode Test and don't want to use PHP, so how/where do I use my JS/RegEx code for the zipcode test in Gravity Forms?

3) Any General ideas on how to best accomplish this in Gravity Forms given 1 and 2 above?

Carl, thanks for the reply, but need as a GF Newbie seek some clarification....

RE: 1) Does GF 1.5's multi-page support via the Page Break Field allow me to have a single GF Form that spans multiple WORDPRESS PAGES? That is, if I have a GF Form with 15 fields, can I reveal and populate fields 1-5 with WORDPRESS PAGE A, fields 6-10 with WORDPRESS PAGE B, and fields 11-15 with WORDPRESS PAGE C? In essence, this means WORDPRESS PAGES would provide "Views" into selected portions of a GF form.

RE: 2) My JavaScript Code to test the Zipcode is pretty simple, but I'm not sure how I'd leverage the jquery library that CF is already using to do the regex stuff. Can you point me to any examples or code showing how to use JS to test the value of a GF field, then based upon results of that calculation, setting a variable or making a calculation that can be used or accessed from an entirely different pages or forms? Here's the JS pcode for what I'm thinking:

var zip5 = event.value.toString();

var myRegExp = /^92(2|3|5)/;

if ( zip5.length === 5 && myRegExp.test(zip5))
{
GOTO PAGE A WITH PRICE LIST A
or.. GOTO PAGE C AND CALCULATE/DISPLAY PRICE LIST A
}
else
{
GOTO PAGE B WITH PRICE LIST B
or.. GOTO PAGE C AND CALCULATE/DISPLACY PRICE LIST B
}

Carl,

I'm back and thought I'd clarify something, when collecting data I realize I don't need to use multiple WP pages, but merely conditionally display the appropriate sections of a single form, i.e.

var zip5 = event.value.toString();

var myRegExp = /^92(2|3|5)/;

if ( zip5.length === 5 && myRegExp.test(zip5))
{
DISPLAY FORM SECTION A WITH PRICE LIST A

}
else
{
DISPLAY FORM SECTION B WITH PRICE LIST B

}

I'd still like to do the conditional testing of the zipcode against a list of several hundred 5-digit US zipcodes on the client, but have little experience working with JQuery and have seen no examples in this forum of how to use JQuery on the client-side to check GF fields or act upon them. If you have any such examples or could direct me to some, they would be a great help.

Lastly, if I can't do client-side field checking and conditional branching, I guess I'll have to do it server side. This will obviously be slower, but maybe more straightforward - even for a PHP novice. Do you have examples of how I'd check a zipcode captured in, say, section 1 of a gravity form - and then based upon that zipcode being in found in one of three lists, conditionally display the next section of the gravity form with the associated fields/prices/etc.?

Any help would be most welcome.

Assuming GF fields have (or can be assigned) an ID, shouldn't Client-side javascript be to access those fields via the document.getElementById() function?

As it appears I've hit the wall with client-side GF customization, do you have any suggestions or examples you could point me to on how to capture the zipcode on the client form and do the validation and conditional activities on the server? Perhaps with the gform_validation hook you mentioned earlier. I need to test the zipcode captured in GF against the zipcode field of approximately 1200 records that will have to be loaded into MySQL manually or via some plugin.
If there's a match on a record, I'll need to extract the record's other fields, send them back down to the client to be prepopulate and display other GF fields on the client.

Am running out of options and hope you can point me to a viable plan-B or plon-C since my ciient-side Plan-A has pushed the envelope of GF.