Question

I have a column that has either 0 or 1 in it. If the column has 0 in it I want to display it in a view.

In my controller I have something like this:

def read
    @title = "Something"
    @posts = Post.where('read' == 0)  
end

For some reason it gets all the posts even when read has the value of 1. What could I be doing wrong?

Answer 1

The correct form is Post.where(:read => 0)

What your current form does is compare the string 'read' to the value 0. If we enter this comparison into a Ruby console, we can see what’s happening:

  > 'read' == 0
 => false 

So, that comparison is returning false. And if you simply type Post.where(false) in a console, you’ll see that it returns all Post records, which explains why you’re getting every Post object returned. In other words, the line, as you’ve typed it, is equivalent to typing Post.where(false)