Form
<form id="my_form">
<input type="file" name="my_file">
<input type="text" name="field_one">
<input type="text" name="field_two">
<button>send</button>
</form>
Create FormData Object
var myFormData = new FormData($("#my_form")[0]);
Question
Is the filename of my_file accessible even though it hasn't been specifically defined (for DOM manipulation and inserting into database)?
This states:
You can also append a File or Blob directly to the FormData object,
like this:
data.append("myfile", myBlob, "filename.txt");
But it doesn't specify whether a filename is automatically added when creating the FormData object from an existing form.
If it is not automatically appended, is the only option to manually create a FormData object through multiple append() statements in which case filename definition is possible?
It seems the filename is automatically added (just tested in Chrome and not sure if this differs in other circumstances).
Steps To Reproduce
Go to http://jsfiddle.net/rwone/vsRSf/
Open Network tab in Developer Tools
Select two images and click the button
View the Network tab and you will see the filenames are defined
The image information is only defined with two parameters, and not the third filename parameter:
myFormData.append(name, file);
Original fiddle based on this post:
https://stackoverflow.com/a/21901886/1063287
Related
Instead of showing ../product/1
$breadcrumbs->push($name,url('/product/'.$id));
I want it to be displayed as ../product
Any method can be used to do this ?
Use hidden input field like:
<input name="id" value="{{$id}}" hidden>
Not a too good practice, But you can hide id parameter from url
I'm using JSF2.2, Tomcat 8 and MySQL DB to create a simple CMS. In my back pages I use Primefaces p:editor to create/edit my page content. I would like to insert an image somewhere into the text. It would be great if I could upload the image and insert it at the current cursor position. Ideally, the image should be saved as a blob, but if it's easier for the implementation it could instead be stored as a local file.
I can see that p:editor already has an option to insert a URL of an image, resulting in the <img> tag in the text. But I would really like the possibility to upload an image from my local drive. I haven't been able to Google anything useful so far.
this is how i did it:
.xhtml:
<p:editor id="editor"
widgetVar="editWidget"
value="#AnnouncementBean.text}" />
<p:fileUpload id="upload"
fileUploadListener="#{AnnouncementBean.uploadListener}"
label="Insert image"
mode="advanced"
allowTypes="/(\.|\/)(gif|jpe?g|png)$/"
update="editor, growl">
</p:fileUpload>
An in my Backing Bean in the uploadListener after file upload:
String value = FacesContext.getCurrentInstance()
.getExternalContext().getRequestParameterMap().get("editor_input");
setText(value + "<img src=\"/uploads/" + result.getName()+"\" />");
RequestContext.getCurrentInstance().update("editor_input");
where "editor_input" referes to the actual form field submitted for the editor (PF adds the_input to the id of your editor)
Notice how I update the editor_input not the actual editor. Only problem now is that the image is appended to the end of the text. sou you must move it manually within the editor
You can use a string to receive the editor (or textEditor) value, then use regex to find all img elements.
This is my code.
String regex="<img src="data:image/(gif|jpe?g|png);base64,([^"]*")[^<>]*>";
Matcher m = Pattern.compile(regex).matcher(your_textEditor_value);
while(m.find()){
String imageFileType=m.group(1);
String imageDataString=m.group(2);
byte[] imageData=Base64.decodeBase64(imageDataString);
}
The imageFileType is your file type, and imageData is data of the file. You can use it to do other thing.
I'm trying to use Joomla's (JForm File Type) form for photo upload. After submiting the form and the file, the field of file remains empty in database. What is missing here ?
My field looks similar to one in jdocs:
<field name="myfilevalue" type="file" label="Enter some text" description="Choose an image from your computer with maximum 100KB" size="10" accept="image/*" />
As far as I know, you need to process the field manually in your models prepareTable function.
You can access the file using this:
$jinput = JFactory::getApplication()->input;
$files = $jinput->files->get('jform');
$file = $files['myfilevalue']
The $file array then holds the following keys:
error
name
size
tmp_name
type
You also need to actually move the uploaded file to the final destination. This can be done using JFile::upload().
Also make sure your form has the enctype="multipart/form-data" set, otherwise it will not work.
I have view which takes care of all the Ajax submits from the client side. And to differentiate them by I uses different submit button names such as this one
<input type="submit" value="Send" name="send_message">
Suggested from this question.
The only problem is that from the view side it doesn't seems to carry the name to the server side so I cannot use the following if-statement
if 'send_message' in request.POST:
It works if I send it normally with page fresh. But I want to use it with Ajax.
I came up with a hack that you can add this name with jQuery. Simply by after serializing() your data you then concatenate the name attribute by data += "&send_message"
Then the if statement will work. But it doesn't seems so clean. So I wonder if there's a better way to handle this? Or should I make different views to handle the different Ajax calls I have?
You really should post each form to a different URL.
If not, you could add a hidden input with the name of the form as the value.
<input name="form_name" type="hidden" value="form_1" />
views.py:
form_name = request.POST['form_name']
I create a from statically in HTML file in view project which is inside the module visit.
I want the controller to handle the request occur when submitting the form
<form action="addVisit" method="post">
<input type="text" name="number"/>
<input type="submit" name="save"/>
The structure of the project is
module visits
controller Visits and it has action addVisit
when submitting the form an error occur, the url becomes like this when submitting the form
http://localhost/zendApps/InspectionSys/public/visits/visits/VisitsController/addVisit
in the controller there is a function action
public function addVisitAction()
{
echo 'here';
}
what should I do ?
First you might reconsider camel caseing your actions addVisitAction() because if you do then you have to deal with view file names like add-visit.phtml I think it will affect urls as well, I find it simpler just to leave action names as lowercase addvisitAction(), this might be part of what's amiss.
Next identify your form actions as /module/controller/action (if you are not using modules you can omit that param), so your action should at least be /visits/visits/addvisit or /visits/visits/add-visit (not quite sure which will work properly) .
also when using html forms that were not generated by Zend_Form you can access the values using $this->getParams() or $this->getParam('paramName') instead of $this->getValues().