Trying to delete a uploaded file from directory file system - grails

Question

I have a web app that uploads files to file system and show them in a list. I am trying to delete the item with a button. I know I need to get the path of the directory file to be able to delete it and I believe this is where I am stuck:
def delete = {
def doc = Document.get(params.id)
def path = Document.get(path.id)
doc.delete(path)
redirect( action:'list' )
}
error I am getting: No such property: path for class: file_down.DocumentController Possible solutions: flash
It seems to me def path = Document.get(path.id) is wrong, in that case how do we find the path of a document ?
This is my upload method where I upload the files, assign it to a specific filesize, date, and fullPath( which is the uploaded folder)
def upload() {
def file = request.getFile('file')
if(file.empty) {
flash.message = "File cannot be empty"
} else {
def documentInstance = new Document()
documentInstance.filename = file.originalFilename
documentInstance.fullPath = grailsApplication.config.uploadFolder + documentInstance.filename
documentInstance.fileSize = file.getSize() / (1024 * 1024)
documentInstance.company = Company.findByName(params.company)
if (documentInstance.company == null) {
flash.message = "Company doesn't exist"
redirect (action: 'admin')
}
else {
file.transferTo(new File(documentInstance.fullPath))
documentInstance.save()
redirect (action:'list', params: ['company': params.company])
}
}
}

Answer 1

I think you have an error in this line:
def path = Document.get(path.id)
You try to get path.id from the path variable you are just declaring.
I'm pretty sure that you mean
def path = new File(doc.fullPath)
path.delete() // Remove the file from the file-system
doc.delete() // Remote the domain instance in DB
Alternative:
class Document {
// Add this to your Document domain
def beforeDelete = {
new File(fullPath).delete()
}
}
and then you could just do this in your controller:
def delete = {
def doc = Document.get(params.id)
doc.delete() // Delete the domain instance in DB
redirect( action:'list' )
}