This feature is enhanced in Joget DX to support image resizing options

Introduction

Image Upload is designed to cater to images. Uploaded images will be displayed according to dimensions set.

The Image Upload is only available on Professional  and Enterprise  Edition.

 File uploaded through the Image Upload is stored under "[Joget Installation Directory]/wflow/app_formuploads".

There are 2 ways you can change the wflow folder path:
1. by adding "-Dwflow.home=PATH" to your JAVA_OPTS when starting tomcat.
2. by setting the "Uploaded File Storage Base Path" option in General Settings.

Get Started

The easiest way to see how the Image Upload works are to use the existing built-in App Expenses Claims. Here are the steps:

  1. Start the Joget Server  and open the App Center.

  2. Log in as admin and click on the pencil icon on the  Expenses Claim  to open the App Composer. (see Figure 1)


    Figure 1

  3. Click on Expense Claim Form and you will be directed to the Form Builder. 

  4. Drag and Drop an Image Upload element on the canvas and click on it to open up the Image Upload properties.

  5. Click on UI, tick on Enable Multiple Files Upload checkbox and click OK.


    Figure 2

  6. Click on Preview, click inside the box to upload or drag and drop images inside the box.

Image Upload Properties

Edit Image Upload

NameDescription
LabelElement Label to be displayed to the end-user.
ID

Element ID (By declaring as "photo", a corresponding database table column "c_photo" will be created)

Please see Form Element for more information about defining the ID and list of reserved IDs.

UI

General

NameDescription
Enable Multiple Files UploadWhen checked, multiple files can be uploaded.
Readonly

Determines if the element is editable.

Drop Zone Padding

Determine the extra size of padding for the larger drop zone.

50px

5%

Image Display

NameDescription
Width (px)Width in integer
Height (px)Height in integer
Create Thumbnail?Determines if the element will create a thumbnail and show it below the upload file element after an image is uploaded.

Advanced Options

Data

NameDescription
Validator

Attach a Validator plugin to validate the input value.

Validation will take place whenever a form is submitted except when it is submitted as "Save as Draft".

Available Options:

  • Basic
  • BeanShell
  • Data and Time Duplicate Validator
  • Directory
  • Duplicate Value
  • Equal Value
  • Multi Form Validator
  • Password
  • Plugin Template - Validator
Maximum File Size (kb)Maximum File Size (KB) in Integer.
Error Message (File size limit exceeded)Error Message when file size exceeded.
Image File Type

Accepted file extension(s). (Semicolon separated values)

.png;.jpg
Error Message (File type mismatch)Error Message when file type mismatched.
Delete Actual File During Overwrite or Remove?

 The actual file will be deleted when a file is removed or being overwritten.

Newly introduced in Joget Workflow v6

Image Resize

NameDescription
Maximum Width (px)

If set, images will be resized to these dimensions before being uploaded.

If only one, Maximum Width (px) or Maximum Height (px), the original aspect ratio of the file will be preserved.

Maximum Height (px)

If set, images will be resized to these dimensions before being uploaded.

If only one, Maximum Width (px) or Maximum Height (px), the original aspect ratio of the file will be preserved.

Quality (Max 1.0)set the quality of the resized image.
Method

sets how the images should be scaled down in case both Maximum Width (px) and Maximum Height (px) are provided.

There are only two methods:

  • contain

  • crop 

    By default, it will set to contain.

Permission

NameDescription
Permission

 Manage on who is able to access the file uploaded. Read more at Permission Control.

  • Logged In Users
  • Public
  • Custom (Opens Custom Permission Options)