Upload Images and File in Odoo Website Using Web Form

upload_file_attachment_in_odoo_website.xml

<template id="detail" name="Project Detail">
    <t t-call="website.layout">
        <div class="col-md-offset-5 col-sm-offset-4 col-sm-8 col-md-7" style="margin-top:30px;">
            <form action="/project/uploaded" method="post" class="s_website_form form-horizontal container-fluid mt32" enctype="multipart/form-data" id="file_upload_form">
                <div t-attf-class="form-group">
                    <div class="col-md-7 col-sm-8">
                        <input type="hidden" name="csrf_token" t-att-value="request.csrf_token()"/>
                        <input type="hidden" name="project_id" t-att-value="project.id"/>
                        <input type="file" name="attachment" class="file" multiple="true" data-show-upload="true" data-show-caption="true" lass="file" data-show-preview="true" id="project.id"/>
                        <button type="submit" name="Upload" style="margin-top:20px;" class="fa fa-upload">Upload</button>
                    </div>
                </div>
            </form>
        </div>
    </t>
</template>  

Upload Images and File in Odoo Website Using Web Form