i have a textarea defined by an id
<textarea id='vegetable'> Tomato </textarea>
i have a button
<button type="button" onclick="MyFunction()">generate vegetable</button>
which trig a javascript in order to modify the content of the textarea
<script>
function MyFunction()
{
document.getElementById("vegetable").innerHTML = VegetableNameGenerator();
}
</script>
The problem is this php action :
<form action="{{ path('mypath', { 'myparam': ??? }) }}" method="post" >
<input type="submit" />
</form>
??? must be the content of the textarea (which is also known by the javascript code) but i don't know how to access it in twig.
I guess there are several way of doing that : jquery, dom, global variable twig... any syntax example would be great.
This is impossible in the way you're describing it.
When a request is made to the server, twig renders the page, then it is sent to the browser, and then javascript can run.
There are options for how to make this work:
Create a controller action which returns the rendered path when you call it using a GET request with the provided parameter. Then create an event listener on the submit button that blocks the submit process until it has retrieved the route via AJAX and modified the form's action attribute.
Redirect from your controller to the path you want displayed. myparam will be included in the post data, so you can redirect from your controller action after you've handled the form.
$this->redirect($this->get('router')
->generate('mypath',
array('myparam'=>
$this->getRequest()->get('myparam')
),
true);
Related
I am creating a Spring Boot web application with Thymeleaf as one of my project's technologies. I've created a form in my HTML page which includes a button to save a JavaScript variable. However, I cannot insert that JavaScript Variable into the value attribute of my input tag. I know that my Spring Boot controllers are working fine because every time I click the "Save Top Ten and Location" button, a successful POST request is made. The only problem I am dealing with is properly filling out the "loc_and_rests" datamember of my entry object.
Here is the form I've created (snippet of my HTML): As you can see, I have a checkbox input tag that calls the JavaScript function, changeVal(), when clicked which should change the value attribute of my button in the line to the value of the JavaScript variable, "loc_and_rests," immediately following the input tag.
<form name="save" action="#" th:action="#{/app/save-entry}" th:object="${entry}" method="POST">
<input type="checkbox" onclick="changeVal()">
<button type="submit" th:field="*{loc_and_rests}" name="submit">Save Top Ten and Location</button>
</form>
Here is my JavaScript function, changeVal(). The variable loc_and_rests is a global variable which I set in a different function.
function changeVal() {
document.save.submit.value = loc_and_rests;
console.log("saved");
}
Also, just to show my controllers are working, here is a screenshot of the result of my POST requests. I added question marks and 'x' to some of the entries to see if they would work if I explicitly set a value with the value attribute.
Thank you.
I want to make a post API call from a anchor HTML tag and URL will be included in the href.
How can i attach the body parameters.
<a href='http:/test_url:5002/api/GetFile'></a>
And in this I want to send the body parameters in the call as well.
I want to find a way to include this in the html tag itself, not in the javascript file.
Help will be appreciated.
Links are designed to GET a URL. You cannot make a POST request directly with them.
Use a form with a submit button instead.
Thats what forms are for. https://developer.mozilla.org/en-US/docs/Web/HTML/Element/form
Just create a form with a submit button. You can also specify if you want to open the requested URL in a new tab with the target attribute.
This is a way you could do it
<form method="POST" action="/api/PostFile">
<!-- with input in between -->
<!-- and a submit button-->
</form>
there's only one way for you to POST data with a link... you would need to wrap the code in a <form> and use that link to submit the form, for example:
<form id="frm" ation="http:/test_url:5002/api/GetFile">
<input type="hidden" name="param1" value="value_for_param1" />
...
...
</form>
any input can be used to append parameters to the <form>, as an example, the hidden is used
now, remember that you shouldn't use http:/test_url:5002 just minimize to /api/getfile or you would most likely get caught into CORS issues
I am required to send data from an html page, via input elements to a php script and I cannot use ajax for some reason. How to accomplish this?
My code is something like this:
HTML:
First Name : <input type"text" name="first_name">
<br><br>
Last Name : <input type"text" name="last_name">
<br><br>
<button id="submit_btn">Submit</button>
Now, I want the javascript to be something like :
function redirect_from_here() {
close(); //close the current window
window.location='./phpfile.php'; //load the new page which will process the data sent to it.
}
My question is how do I send the value in the input elements in the HTML portion, as data to be processed, to the php script (phpfile.php in this case).
Please note that I prefer not to use html form for doing the job.
You are using HTML form as there are input fields in you code.
Inputs are part of a form and should be wrapped by a form element
Why using JS for submitting the form when you can use <form action='script.php'.. for that?
I suggest that you revise your requirements instead of trying to come up with a hackish way of how to send the data..
Just submit a form with action="phpfile.php"
if not interested with html,
then in the window location bind the values as a GET form method do
I have an address book widget that shows if there are contents.
If there are no contents, an add button will show up. Upon pressing the add button, it will redirect to another page which will show the form.
The initial design of my website is as follows:
When the user click the add button, it will direct to a page using javascript function:
document.location.href="address?addOnly=true";
The form will display.
If successful, there are $.post that will change the div only that will enable user to do CRUD in the address book.
The problem with the variable inside the url which is address?addOnly=true is that when the user refresh it, it will always shows the add form.
That's why i've decided to hide the implementation using $.post
$.post('address', {"listEmty":true}, function (data) {
window.location = "address";
});
The problem with this is that it can't pass the variable at all.
My questions are:
How to handle the page refresh if using the get method, which passes the paramater in the URL,
Are there anyways in javascript/jquery to pass the variable using post method then refresh the page?
Thank you.
<FORM method="post" action="address" id="refresh" style="display: none;">
<DIV>
<INPUT type="hidden" name="addOnly" value="true">
</DIV>
</FORM>
<SCRIPT type="text/javascript">
document.getElementById('refresh').submit();
</SCRIPT>
What this does is create an invisible form, then immediately submits it. You can of course call the submit from within your other javascript code.
I'd like to be able to submit a form automatically on an event ( a generic form, for user tracking).
For example, create a POST to
http://www.example.com/index.php?option=track&variable=variable
application/x-www-form-urlencoded with stuff like
username=usernamestring
otherdata=otherdata_string
otherdata2=otherdata string 2
The actual string will be preformatted, though, because all it is is like a 'ping'.
It needs to be submitted onevent, with external js ( http://example.com/scripts/js.js )
What the hay should I do? This is getting annoying.
Update: I guess I didn't really make myself clear; I have a premade form that isn't supposed to display on the page; it needs to submit on an event. The form fields do not exist on the page; all I do is link to the script on the page and it executes onLoad.
POST uri: http://www.example.com/index.php?option=track&variable=variable
The arguments above (option=track and variable=variable) are not the form details (postdata).
The content type is application/x-www-form-urlencoded , and has the following keys/values.
username=usernamestring
otherdata=otherdata_string
otherdata2=otherdata string 2 (when encoded, the spaces get turned to %20's.)
I need a script that submits this when run.
You have to get the form object and call the submit(); function provided by HTMLFormObject.
document.getElementById('myForm').submit();
1) with the following, (while page is loaded), the form will be immediately autosubmited
<form action="post.php" name="FNAME" method="post">
<input type="text" name="example22" value="YOURVALUE" />
<input type="submit" />
</form>
<SCRIPT TYPE="text/JavaScript">document.forms["FNAME"].submit();</SCRIPT>
another formSubmit alternative - submits any script:
document.forms[0].submit();
2) or use button click after 2second:
<SCRIPT TYPE="text/JavaScript">setInterval(function () {document.getElementById("myButtonId").click();}, 2000);</SCRIPT>