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edidur
Smarty Rookie
Joined: 21 May 2020
Posts: 12
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 Posted: Thu May 21, 2020 11:01 pm Post subject: HTML Form in TPL |
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I am trying to include a simple HTML form in a tpl file, it is working but I am unable to get the form data to be saved into the action URL.
Here is what I have:
| Code: |
<form action="https://www.edidur.com/api.php?call=writingstats&user_id={$user->_data['user_id']}&word_count={$smarty.post.wcount}&writing_date={$smarty.now|date_format:"%Y-%m-%d"}" method="post">
<label for="wcount">Update Word Count:</label><br>
<input type="text" id="wcount" name="wcount">
<input type="submit" value="Submit">
</form>
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user_id and writing_date are both being picked up in the url, but wcount is always returning 0 (zero).
Edited to add:
If I change the wcount variable with a hardcoded number (like 1234) it works perfectly.
| Code: |
https://www.edidur.com/api.php?call=writingstats&user_id={$user->_data['user_id']}&word_count=1234&writing_date={$smarty.now|date_format:"%Y-%m-%d"}" method="post"
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Anything obvious that I am doing wrong?
Have spent about 9 hours on this so far any help would be greatly appreciated. |
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bsmither
Smarty Elite
Joined: 20 Dec 2011
Posts: 322
Location: West Coast
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| Posted: Fri May 22, 2020 1:29 am Post subject: |
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The variable $smarty.post will be populated with the values in the prior POSTing of the form. Therefore, for the first appearance of the form in the browser, there will be no value for $smarty.post.wcount.
So, you say you are POSTing the form, probably with a value in wcount.
Maybe some part of your PHP code is inadvertently unsetting $_POST['wcount'] before Smarty is called to render the template. You might want to check on the value of $_POST before calling Smarty->display(). (I don't know if Smarty grabs the request variables at time of its instantiation, or at some point when rendering the template.) |
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edidur
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Joined: 21 May 2020
Posts: 12
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| Posted: Fri May 22, 2020 1:41 am Post subject: |
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| Definitely worth a shot, I will check out the $_POST value before hand. |
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edidur
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Joined: 21 May 2020
Posts: 12
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| Posted: Sat May 23, 2020 12:40 am Post subject: |
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| Is there any way I can assign the value in wcount internally to the FORM block so that it will be picked up by the action URL that i am building? |
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bsmither
Smarty Elite
Joined: 20 Dec 2011
Posts: 322
Location: West Coast
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| Posted: Sat May 23, 2020 8:17 am Post subject: |
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Sorry, but could you elaborate?
Internally? Internal to what?
When POSTing, and your script having received the POSTed key/value pairs which now reside in the variable $_POST, you would then use Smarty's assign method to make that key/value available to the template:
PHP:
| Code: | | Smarty->assign("WCOUNT",$_POST['wcount']); |
Template:
| Code: | | <form action="https://www.edidur.com/api.php?call=writingstats&user_id={$user->_data['user_id']}&word_count={$WCOUNT}&writing_date={$smarty.now|date_format:"%Y-%m-%d"}" method="post"> |
If you do not have access to the PHP scripts, then use $smarty.post.wcount instead of $WCOUNT. |
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edidur
Smarty Rookie
Joined: 21 May 2020
Posts: 12
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| Posted: Sat May 23, 2020 1:37 pm Post subject: |
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Bmither,
It is simply not working.
| Code: |
<form action="https://www.edidur.com/api.php?call=writingstats&user_id={$user->_data['user_id']}&word_count={$smarty.post.wcount}&writing_date={$smarty.now|date_format:"%Y-%m-%d"}" method="post" _self>
<label for="wcount">Update Word Count:</label><br>
<input type="text" id="wcount" name="wcount">
<input type="submit" value="Submit">
</form> |
Is still returning zero in wcount.
Further, using:
| Code: | | {$smarty->assign("WCOUNT",$_POST['wcount']);} |
I am getting this error:
| Code: | | Fatal error: Uncaught --> Smarty Compiler: Syntax error in template "file:/var/www/edidur/content/themes/default/templates/_sidebar.tpl" on line 24 "{$smarty->assign("WCOUNT",$_POST['wcount']);}" $smarty. is not defined <-- thrown in /var/www/edidur/includes/libs/Smarty/sysplugins/smarty_internal_templatecompilerbase.php on line 24 |
(I know this is frustrating to help with, but man, I appreciate it!) |
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edidur
Smarty Rookie
Joined: 21 May 2020
Posts: 12
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| Posted: Sat May 23, 2020 1:46 pm Post subject: |
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I am wondering if I can have an html form in a tpl file that returns the name variable (In this case wcount)?
This works for other people? |
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bsmither
Smarty Elite
Joined: 20 Dec 2011
Posts: 322
Location: West Coast
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| Posted: Sat May 23, 2020 2:47 pm Post subject: |
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The Smarty->assign() statement is in your PHP code, not the template. Once Smarty has the value from the assign method, one would display it using the named variable in the template.
When the page is being displayed by the browser, the page source will show you what the page has finally compiled to be. So, the <form> HTML will be all the values Smarty used to populate the variables.
What did Smarty replace {$smarty.post.wcount} with? (Again, this will be blank until after the first submission.)
Last edited by bsmither on Sat May 23, 2020 7:28 pm; edited 1 time in total |
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edidur
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Joined: 21 May 2020
Posts: 12
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| Posted: Sat May 23, 2020 7:03 pm Post subject: |
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What is being returned is 0 (zero) no matter the format I use.
here is a snippet of the api output:
| Code: | | {"id":"7470","user_id":"2","word_count":"0","writing_date":"2020-05-23","created":"2020-05-23 18:54:10","updated":"2020-05-23 18:54:10"} |
Here is the code I have used to get that result (except the input on the submitted form was 1111)
| Code: | | <form action="https://www.edidur.com/api.php?call=writingstats&user_id={$user->_data['user_id']}&word_count={$smarty.post.wcount}&writing_date={$smarty.now|date_format:"%Y-%m-%d"}" method="post" _self> |
Now if I pull out the {smarty.post.wcount} (or I have tried $_POST['wcount']) and hard code in that url api call, a word count (arbitrarily set to 1111) it will save to the database properly.
Like so:
calling action:
| Code: |
<form action="https://www.edidur.com/api.php?call=writingstats&user_id={$user->_data['user_id']}&word_count=1111&writing_date={$smarty.now|date_format:"%Y-%m-%d"}" method="post" _self> |
with an api return of:
| Code: | | {"id":"7470","user_id":"2","word_count":"1111","writing_date":"2020-05-23","created":"2020-05-23 18:54:10","updated":"2020-05-23 18:59:50"} |
So the fundamental issue seems to be, why is the HTML Form element of wcount not being assigned into the api calling url? (Why isn't the submitted number being stuffed into the url, like the user_is and writing_date is?) |
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bsmither
Smarty Elite
Joined: 20 Dec 2011
Posts: 322
Location: West Coast
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| Posted: Sat May 23, 2020 7:35 pm Post subject: |
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Your browser probably has a Developer's Tools suite of functions. One tool is the Network panel. It is here you can see what actually gets sent out when you click the Submit button.
Use that tool to determine what key/value pairs are actually getting out via the querystring, and which key/value pairs are getting out in the POST payload. |
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edidur
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Joined: 21 May 2020
Posts: 12
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| Posted: Sat May 23, 2020 7:55 pm Post subject: |
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I have been looking at that, and the url that is being sent looks good, except that wcount (From the form) is being inserted instead of the value for wcount.
so the url looks like:
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https://www.edidur.com/api.php?call=writingstats&user_id=1&word_count=wcount&writing_date=2020-05-23 |
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edidur
Smarty Rookie
Joined: 21 May 2020
Posts: 12
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| Posted: Sat May 23, 2020 8:46 pm Post subject: |
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As an add-on piece of info, if I change the form method to "get" then run the form, the user_id is blank, wcount is accurate and the writing_date is also blank.
So the url that is built looks like:
| Code: | | https://www.edidur.com/api.php?wordcount=1234 |
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bsmither
Smarty Elite
Joined: 20 Dec 2011
Posts: 322
Location: West Coast
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| Posted: Sat May 23, 2020 11:14 pm Post subject: |
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The following is a quote taken from StackOverflow, making reference to the specifications on how browsers are to behave:
| Quote: | As the specifications (RFC1866, page 46; HTML 4.x section 17.13.3) state:
If the method is "get" and the action is an HTTP URI, the user agent takes the value of action, appends a `?' to it, then appends the form data set, encoded using the "application/x-www-form-urlencoded" content type.
In HTML5, see http://www.w3.org/TR/2011/WD-html5-20110525/association-of-controls-and-forms.html#form-submission-algorithm
Look at "4.10.22.3 Form submission algorithm", step 17. In the case of a GET form to an http/s URI with a query string:
Let destination be a new URL that is equal to the action except that its <query> component is replaced by query (adding a U+003F QUESTION MARK character (?) if appropriate).
So, your browser will trash the existing "?..." part of your URI and replace it with a new one based on your form. |
So, no, if passing back key/value pairs in the existing querystring is required, then POSTing the form is your only option (well, you could write a javascript interdiction).
You need to look at what is being POSTed prior to the page coming back to the browser. That would be on the Params tab of the Network pane when viewing the browser's POST action. |
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edidur
Smarty Rookie
Joined: 21 May 2020
Posts: 12
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| Posted: Sun May 24, 2020 12:18 am Post subject: |
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POST /api.php?call=writingstats&user_id=1&word_count=$_COOKIE[%27wordcount%27]&writing_date=2020-05-24 HTTP/1.1
This is what it is showing under params. |
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bsmither
Smarty Elite
Joined: 20 Dec 2011
Posts: 322
Location: West Coast
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| Posted: Sun May 24, 2020 3:21 am Post subject: |
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The $_COOKIE array is a PHP variable, usable in PHP code.
The template is not PHP code. The template is not executed as if it were PHP code.
Looking at the Params tab of the Network screen (highlighting the POST event), was there any mention in the POST section of the Params for the form element named 'wcount'? Did you enter a value in this text entry field prior to clicking the Submit button? |
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