So I have a comment system and I want to have a delete button to delete the 
linked review. If a user (admin) clicks on this button the review is 
deleted. I have read about using CRUD and SQLFORMS deletable, but I want 
this not as a form but as a button.

How would I do so?

Controller:
def view():
{some code for displaying some parts of page here}
    rows = db(db.comment.id == request.vars.commentNumber).select()
    return locals()

View:
{ some code for displaying page here}
{{for row in rows:}}
<h4>"{{=row.reviewsTitle}}" <p><i>{{=row.date}}</i><a>Delete</a></p></h4>
<p> {{=row.reviewsText}}</p></p>
{{pass}}

Example of comment:
"Good work" 2017-02-25 Delete
descriptionhere
"I like itk" 2016-03-25 Delete
descriptionhere

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