I'd like my form to include a certain value if the quantity is equal to 1 (via a text box).
I've managed to show what the total cost is using JavaScript and I could submit it with this value but I'm worried that when JavaScript is turned off the user will be able to submit the form without the extra fee being added. Therefor escaping the fee.
<form>
<label>Qunatity</label>
<input type="text" name="qyt" />
<input type="text" name="fee" value="250" />
<div class="total">[whatever the total is]</div>
<input type="submit" value="submit" />
</form>
Is there a way I can submit this form so that it submits 250 only if a quantity of 1 is added to the form? I'd like to avoid using a select input.
Will I need to split my form out into two stages to achieve this?
You need to check your logic in server-side code.
Most people have Javascript enabled, so you should do it in Javascript to provide a better experience, but you must always reproduce the logic on the server.
If you need to validate your input without JavaScript, have a server-side component (PHP?) to do the job and return the same form with an error message if no quantity was given. That way you don't have to split your form into two steps.
The best/safest way to handle this would be to do your total calculation on the server side. That way the data you store will always be correct.
Related
I'm using Statamic CMS
I've got a checkbox group with two checkboxes, I'd like both of them to be checked before the form will submit.
Setting the field as 'required' half works. The form will error if nothing is checked, but it submits if one of the boxes is ticked.
I can see under the validation tab, there's a list of additional rules. But I'm not sure which rule to use.
If it helps, this is what the HTML checkbox group looks like:
<div>
<label>Contact permissions</label>
<span>Please tick both checkboxes</span>
<label>
<input type="checkbox" name="checkboxes[]" value="gdpr" />
Please contact me with the details I've provided
</label>
<label>
<input type="checkbox" name="checkboxes[]" value="terms" />
I agree with the terms and conditions
</label>
</div>
I'm using the {{ fields }} tag to generate the HTML
Within the CMS, under the validation tab, there's a link to the Laravel docs. As I want to validate two checkboxes, I think I need the required_with: rule, but I can't get it to work...
required_with: is looking for two values, the example shows this:
required_with:foo,bar,..
The values of the checkboxes are, value="gdpr" and value="terms" so I (wrongly) assume this should work...
required_with:gdpr,terms
After saving the changes and testing the form, it still submits? Even though only one of the checkboxes might be ticked...
What is the correct syntax/values to use to get this to work?
:) foo,bar in the docs are field names in your form. What you're doing with gdpr,terms are values.
Plus, since both your buttons are named checkboxes[], the form is validating that if either one is selected, then it should be passed. Hopefully this helps!
To submit a form by pressing Enter key the standard solution is:
<input v-model="name" v-on:keyup.enter="submit" />
But what if a form has many input fields? Is it necessary to add v-on:keyup.enter="submit" to every single one of them, or is there a simpler solution?
In this case, you should wrap the inputs in a form as follows:
<form v-on:submit="submit">
</form>
I want to reset all the form fields on successful AMP form submission as I am allowing user for multiple data entry.
Manually I can do it by managing states of each field through amp-bind but I want to reset fields in one go. Is there any function like form.reset present which I can call on form submit success event?
You can use the clear action to reset all fields in a form:
<form id=myForm>
<input>
</form>
<button on="tap:myForm.clear">Clear inputs</button>
You can use submit-success.
<form id=myForm on=submit-success: myForm.clear>
<input name=name value= />
<button>Submit form</button>
</form>
In HTML, multiple fields can be specified with a non-unique name like so:
<input type="checkbox" name="breakfast" value="eggs">
<input type="checkbox" name="breakfast" value="bacon">
so that, when submitted, query parameters get passed like (if both boxes are ticked) breakfast=eggs&breakfast=bacon. The CGI specification states that this should be interpreted as an array or list of values, and this technique is also useful for dynamically-sized lists of inputs:
<input type="text" name="url">
<input type="button" value="More…"
onclick="var s = document.createElement('input');
s.type='text';
s.name='url';
this.form.appendChild(s);
return false;">
However, I can see no way to get list-valued inputs from a form in Yesod. Is there any way to do such a thing?
Most of the prebuilt fields work on inputs with a single input (with a notable exception for multiSelectField). To achieve what you're looking for, you probably want to create a custom Field. Notice that the fieldParse function takes a list of Text values, specifically to allow your use case.
The chapter on forms includes a section on custom fields.
im pretty new to jQuery, and i dont know how to do that, and if it can be done without editing manually the plugin.
Assume to have a simply form like that:
<form action="page.php" method="post">
Name: <input type="text" name="Your name" id="contact-name" value="" />
Email: <input type="text" name="Your email" id="contact-email" value="" />
</form>
When you submit it, both in 'standard' way or with ajaxSubmit(), the values of the request take the label of the field name, so in the page.php i'll have:
$_POST['Your name'];
$_POST['Your email'];
Instead i'll like to label the submitted values with the id of the field:
$_POST['contact-name'];
$_POST['contact-email'];
Is there a way to do that with jquery and the ajaxsubmit() plugin?
And, maybe, there is a way to do it even with the normal usage of a form?
p.s: yes, i know, i could set the name and id attributes of the field both as 'contact-name', but how does two attributes that contain the same value be usefull?
According to the HTML spec, the browser should submit the name attribute, which does not need to be unique across elements.
Some server-side languages, such as Rails and PHP, take multiple elements with certain identical names and serialize them into data structures. For instance:
<input type="text" name="address[]" />
<input type="text" name="address[]" />
If the user types in 1 Infinite Loop in the first box and Suite 45 in the second box, PHP and Rails will show ["1 Infinite Loop", "Suite 45"] as the contents of the address parameter.
This is all related to the name attribute. On the other hand, the id attribute is designed to uniquely represent an element on the page. It can be referenced using CSS using #myId and in raw JavaScript using document.getElementById. Because it is unique, looking it up in JavaScript is very fast. In practice, you would use jQuery or another library, which would hide these details from you.
It is reasonably common for people to use the same attribute value for id and name, but the only one you need to care about for form submission is name. The jQuery Form Plugin emulates browser behavior extremely closely, so the same would apply to ajaxSubmit.
It's the way forms work in HTML.
Besides, Id's won't work for checkboxes and radio buttons, because you'll probably have several controls with the same name (but a different value), while an HTML element's id attribute has to be unique in your document.
If you really wanted, you could create a preprocessor javascript function that sets every form element's name to the id value, but that wouldn't be very smart IMHO.
var name = $("#contact-name").val();
var email = $("#contact-email").val();
$.post("page.php", { contact-name: name, contact-email: email } );
This will let you post the form with custom attributes.