Name
file
Type
_input
Synopsis
Using file uploads
Description
Use a form to upload one or multiple files.
Parameters
_input type="file"
target* : Name of the File page to be created
pagecontent : Text content to be added on the File Page
force : Force images to a certain format (png, jpg or gif). When using this option, any file uploaded that is not supported will be uploaded as is.
error_id : Id of a DOM Element where error notices will be shown
verbose_id : Id of a DOM element where information about the file is shown
use_label : Doesn't require a value. When an input field has a label attached to it, then the label will become the upload button and the input field will be hidden
dropzone : Doesn't require a value. Will turn the verbose div into an additional file drop zone
parsecontent: Will force FlexForm to insert values from other form fields inside the pagecontent field. Use square brackets, like [fieldname], where values should be inserted.
*= a required variable
The target is basically the name you want to use to store the file or files. It recognizes [mwrandom], [filename] and other form fields, by using their name with square brackets around them (see example). pagecontent can also hold form variables.
HTMLtoImage
You can also use the field input to upload an image created from part of the page shown where the form is rendered.
Basically, you tell FlexForm you want to render a part of your screen as an image and upload it to the wiki.
The syntax is the same as above, but it only needs : target and pagecontent. The other arguments are ignored. Additionally it needs an argument called presentor="canvas" and it needs the ID of the element you want to convert to an image: canvas_source_id.
For example you have a DIV element with id="content-to-convert". Within this DIV you have content you want to convert to an image an upload to the Wiki.
A FlexForm to utilize this would look something like this :
You cannot use both file uploads in one form.
Examples
Example 1
<_input type="file" id="file-upload" target="pictures-[filename]-[mwrandom]" pagecontent="Information of the test file" error_id="div-error" verbose_id="div-verbose" />
Example 2
Always make sure an image will be transformed to jpeg.
Allow for multiple file upload.
Add form text field "description" on the files page content.
<_form action="addToWiki" enctype="multipart/form-data" >
<_input type="file" id="file-upload" multiple="multiple" parsecontent target="pictures-[filename]-[mwrandom]" pagecontent="Information for this image: [description]" force="jpg" />
<_input type="text" name="description" />
<_input type="submit" value="upload" />
</_form>
Example 3
Store a template to the pagecontent. You can use this if you want the filepage to have structured content or if you want to store structured data with an extension like SMW.
<_form action="addToWiki" enctype="multipart/form-data" >
{{#tag:_input ||type=file |id=file-upload |target=picture-[mwrandom] |parsecontent=true |pagecontent=<nowiki>{{Uploaded file
|Uploaded from page=</nowiki>{{FULLPAGENAME}}<nowiki>
|Uploaded by=</nowiki>{{CURRENTLOGGEDUSER}}<nowiki>
|Comment=[Comment]
}}</nowiki>
}}
<_input type="text" name="Comment" placeholder="Comment" />
<_input type="submit" value="upload" />
</_form>
Note
A _input type="file" always needs a unique ID!
