Question

I have this find condition pulling from my model that currently looks like this.

 @major_set = Interest.find(:all, :conditions => {:id => 1..21})

I’d like to add some more individual ids that I’ve just added which are like 120…130. I tried to do…

 @major_set = Interest.find(:all, :conditions => {:id => 1..21, 120..130})

but got the error. ” syntax error, unexpected ‘}’, expecting tASSOC …ns => {:id => 1..21, 122..130})”

How can I select multiple sets of id’s as well as maybe some individual ids, ie ( :conditions => {:id => 1..21, 121..140, 144, 155 }??

Answer 1

You can convert the ranges to arrays and add them together. E.g.

@major_set = Interest.find(:all, 
    :conditions => {:id => (1..21).to_a + (120..130).to_a})

If you then want to add in individual ids then you can just add them to the array. E.g.

ids_to_find = (1..21).to_a + (120..140).to_a
ids_to_find << 144
ids_to_find << 145
@major_set = Interest.find(:all, :conditions => { :id => ids_to_find })