Document Size Validation

Question

Hi All, 
 I have to provide document size validation in file upload field like if uploaded document is more than 10 MB,I will display the validation error. 
 I have two buttons Submit and Cancel ,and for each the submit parameter is set as true() . 
 For submit button the validate parameter is true() and for cancel button the validate parameter is false(). 
 So ,when the user uploads more than 10MB,they not able to submit until they reduce the doc size and for Cancel we are not saving the document into Database. 
 But here I am facing the below issue, 
 When the user clicks on Cancel ,it not writes in Database as expected ,but it saves in the Appian folder, since it goes out of the node. 
 So please help me if there is any way to avoid saving this file in Appian folder if document size is more than 10MB . 
 Thanks in Advance!

Mike Schmitt · Accepted Answer

Jansi J said: if there is any way to avoid saving this file in Appian folder if document size is more than 10MB 
 2 methods: 
 
 Disable the CANCEL button if there's a new file uploaded - and provide a tooltip on the cancel button asking the user to clear out the upload field first. 
 Leave the CANCEL button enabled; continue to save the uploaded document ID into the rule input it was targeted at previously, but in the CANCEL path process flow, add logic to check if there is a populated document ID, and if so, delete it. I created a specialized system-wide utility subprocess called "Safe Delete", which checks whether the provided document ID is non-null (and actually exists) prior to trying the DELETE DOCUMENT node, as this node is NOT null-safe.

Mike Schmitt · Answer

I agree, depending on context. I've used both before. However there are some cases where, for example, a document is added to a row in an Editable Grid, where the grid rows themselves can be removed by a user, where i've taken special pains to come up with a method where the "remove row" control is disabled until the user removes the uploaded document on that row.

Document Size Validation

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