I am trying to simply post an entire form w/o the need to create the url like you would have to in a get call. All of the tutorials I have seen for this for some reason create a parameter URL and send it via the send ability.
I want to be able to send a form via the form id or form name, is this possible?
The reason is because I will have some submits that can have anywhere from 2 to 1000 checkboxes the user can press (not my choice).
Example I looked at mainly is: http://www.captain.at/howto-ajax-form-post-request.php
I use a type="button" to do the submit not a onchange or anything like that.
Use jQuery, and it's very easy:
$.post("/myactionpage.php",$("#formID").serialize(), function (data) { whatever(); });
If you can use jQuery, the JQuery Form plugin does exactly that.
The jQuery Form Plugin allows you to easily and unobtrusively upgrade HTML forms to use AJAX. The main methods, ajaxForm and ajaxSubmit, gather information from the form element to determine how to manage the submit process.
There are multiple ways to do this and you're right, you don't want to use the GET method. You want to use the POST method, which allows you to send all the data in the form. There are too many options to list, but jQuery is a good start. If you don't want to use an external library like jQuery, try checking out a google search on "ajax via post".
Related
I am volunteering on a website-based project that is trying to make all pages fully operable JavaScript free before adding any JavaScript for enhancements, and I was asked to investigate whether or not a particular scenario could be handled purely through HTML/CSS.
What we have is a form that is populated to help us filter a list of tickets that are displayed on the screen after a page update through a GET action, which itself works fine, but the concern with the current implementation is that the URL cannot be made into a permanent link. The request, however, to keep the permanent link as minimal as possible, is to only send GET parameters for fields that are populated with something (so, suppressing GET parameters for fields that are blank) instead of having a different GET parameter for each form field on the page.
I have thought of several ways that could be done, most including JavaScript (example: create fields with ids but no names and a hidden field w/ name that uses JS to grab the data from the fields), but also one that would be a POST action with a redirect back to the GET with a human readable string that could be permanently used. The lead dev, however would prefer not to go through the POST/redirect method if at all possible.
That being said, I'm trying to make sure I cover all my bases and ask experts their thoughts on this before I strongly push for the POST/redirect solution: Is there a way using only HTML & CSS to directly suppress GET parameters of a form for fields that are blank without using a POST/redirect?
No, suppressing fields from being submitted in an HTML form with method of "GET" is not possible without using JavaScript, or instead submitting the form with a POST method and using a server side function to minimize the form.
What fields are submitted are defined by the HTML specification and HTML and CSS alone cannot modify this behavior and still have the browser be compliant with the standards.
No, you cannot programmatically suppress any default browser behavior without using some kind of client scripting language, like JavaScript.
As a side note, you say "JavaScript for enhancements", but JavaScript is not used for enhancements these days. And no one in the real world would except a decent front-end without the use of JavaScript. I would suggest you simply use JavaScript.
I do not think you can avoid Javascript here to pre process before submission to eliminate unchanged /empty form fields.
I am new to HTML and still trying to understand some concepts. Here it is one that I do not understand at all. After trying HTML form I noticed that if I have a form with attribute name I can access that form the following way document.attribute_name or document[attribute_name]. However if I try to do the same on a div for instance, it does not work. Can somebody please explain me why is this so.
Also, I was wondering if it good practice to use a form when using AJAX. Let say that I have some fields inside a form but I am using ajax and the form never is "posted" as I am using AJAX to change field's contents.
Thanks in advance!
Usually a form has the name attribute in order for you to be able to pass a value to a PHP/ AJAX script.
When writing THE FORM :
<FORM action = 'addDetailsToDatabase.php' method = 'post' >
<input name ='myName'>
<button type = 'submit'>
</form>
When you submit this form it will post the input field value that has the name attribute 'myName' to the addDetailsToDatabase.php script. So now whatever has been entered and submitted in the input you can use in your PHP script.
TAGS do not generally have a need for a name attribute. (I am saying generally need just incase theiris some library out there that uses this I have never seen a name attribut on a div tag.
The best way to get a div is to get it by ID . document.getElementByID('yourdivid') - Javascript.
Your div will look like this
You can use AJAX to post a form to be be run by a PHP script and this has the added benefit of the whole page not being refreshed.
Anwsering the second part its hard what you are asking. With Ajax you can make your page as dynamic as you want
You can select from the database and echo wherever you want the options are limitless (almost). The best thing to do is to learn HTML = SIMPLE Learn CSS =SIMPLE. Then learn some simple JQUERY or javascript. If your dealing with forms and databases learn how to post a form to PHP script and store in a database and then retrieve using the select statement (prepared statements will set you up for years to come try and avoid old SQL tutorials)
Once you get this learn your AJAX to fill the gaps
i am working on a submit form in my html page. When i click submit button, i should get mail in my inbox.
So what all the procedures, i need to follow to get the output.
You need to use a server side language like PHP / ASP.NET etc. Then:
User submits form.
Retrieve the submitted information.
Send an email using the email functionality specific to the language you decide to use.
You haven't given much so this is only an outline of what you need to do to get going. You can use Google for the various areas you need to implement.
Instead of using any server, is there any plugins which can be useful
to get my output. – Bharadwaj
I think this might do the job for you http://www.emailmeform.com/
I've never used it, but it looks like a website that hosts the form for you and emails you the results. You'd just put the form html on your page and let them do the rest.
Hope that helps.
Rfc2616 lists many methods besides GET and POST, like, say, DELETE, PUT etc. Method field in html forms, though, seems to be allowed to specify only GET or POST.
Is it possible to create a link or form in a html page that uses a request method that is not GET or POST?
Was trying to figure this out for a rails app that was using Angular on the front end; these seems to work for that environment:
<a data-confirm="Are you sure?" data-method="delete" href="/link-to-resource" rel="nofollow">Delete</a>
Edit: Just to give everyone a heads up, I think you still need to have jQuery for this to work. I removed jQuery and it stopped working; I put it back and it started working.
You certainly can’t create a link that uses anything other than GET. Since HTML began, links have been meant to be idempotent and free from side effects.
For forms and XMLHTTPRequests, Caps’ link is the place to look: Are the PUT, DELETE, HEAD, etc methods available in most web browsers?.
By default, not there is no way to do this. Links always perform GETs, forms can use GETs or POSTs.
That said, with a little JavaScript, it's possible. Rails for instance ships with helpers which will add a data-method attribute to links. Rails-UJS is a jQuery library that will transparently intercept clicks on these links, and trigger a form submit with a _method parameter used for overriding the normal HTTP method. Finally Rack will intercept requests with a _method params, and overwrite the request method with the value in _method.
Other frameworks no doubt follow a similar pattern.
If you want even more details, I've written up an explanation of how Rails, Rails-UJS, and Rack all work together to provide this.
It's good to know how your libraries work.
It is not possible to create a link or form with delete method.
Many web framework create a hidden input called "_method" for handling PUT and DELETE.
I created a plugin for automatically convert links to forms : RestfulizerJs
You can take a look here : https://github.com/Ifnot/RestfulizerJs
#Ifnot plugin is great but I created a one based on $.ajax function instead of appending hidden forms! here's a simple example for a DELETE request
HTML
<button class="delete" data-target="http://example.com/post/post-id/" data-method="DELETE" data-disabled="true">Delete Article</button>
JavaScript
$(".delete").restintag(optionsObj, function(data) {
console.log(data);
},
function(error) {
console.log(error);
});
https://github.com/KhaledElAnsari/RESTInTag/
HTMX is designed to solve this.
Why should only <a> and <form> be able to make HTTP requests?
Why should only click & submit events trigger them? Why
should only GET & POST methods be available? Why should you only be
able to replace the entire screen? By removing these arbitrary
constraints, htmx completes HTML as a hypertext
It enables any DOM element to make HTTP requests GET, POST, PUT, PATCH, and DELETE, without writing any custom JavaScript.
just add a data-method attribute,<a data-method='put' href='whatever'>link</a>
i doing some shopping cart ui in html.
I would like to avoid nested form but any solution which allow me to route request to two different handler is preferable with the data included. There are two requests are delete item and check out.
I wonder what is the alternative solution to nested form.
Please help.
Thanks.
You can't have nested forms in HTML, so you have to use an alternative.
The form that you post doesn't have to be located where the information that you want to post is located. You can use Javascript to copy the information from some fields in the page into hidden fields inside a form somewhere else on the page, and post that form.
This will also make the page simpler. You can use a single form for the delete function, instead of having one form for each item.