XForms/Multiple Uploads

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Motivation[edit | edit source]

You would like the user to be able to attach multiple files to a form.

Method[edit | edit source]

We will use the <xf:repeat> around the upload control:

Sample Source[edit | edit source]

<html xmlns="http://www.w3.org/1999/xhtml" xmlns:ev="http://www.w3.org/2001/xml-events"
    xmlns:xhtml="http://www.w3.org/1999/xhtml" xmlns:fr="http://orbeon.org/oxf/xml/form-runner"
    xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xxforms="http://orbeon.org/oxf/xml/xforms"
        <title>XForms Upload Multiple Simple</title>
            <xf:instance xmlns="" id="save-data">
                        <MyFile filename="" mediatype="" size=""></MyFile>
            <xf:instance id="file-upload-template" xmlns="">
                <MyFile filename="" mediatype="" size=""></MyFile>

        <p>Demonstration of how to use the repeat element to get multiple uploads.</p>
            <legend>Add multiple attachments</legend>
            <xf:repeat ref="instance('save-data')/Files1/MyFile" id="repeat-1">
                <xf:upload ref=".">
                    <xf:filename ref="@filename"></xf:filename>
                    <xf:mediatype ref="@mediatype"></xf:mediatype>
                    <xxforms:size ref="@size"></xxforms:size>
                    <!-- Note the event after upload could add a new row -->
                <xf:trigger ref="instance('save-data')/Files1/MyFile[2]">
                    <xf:delete ev:event="DOMActivate"
                <br />
                <xf:label>Add Attachment</xf:label>
                <xf:insert ev:event="DOMActivate" ref="instance('save-data')/Files1/MyFile"
                    origin="instance('file-upload-template')"> </xf:insert>


Sample User Interface[edit | edit source]

upload multiple attachments

User interface notes[edit | edit source]

  1. The delete trigger will only be visible after the second upload is shown.
  2. This interface shows the file name and size in bytes. The mime-type could also be shown
  3. You can add any number of files
  4. You can delete any row by selecting the "Delete" button
  5. You can re-add a file using the red X

The files will be uploaded to the server in an async process.

Tested on Orbeon 4.3