Rails metasearch checkbox

Question

So my Project model currently contains a column named tags which are in the format of a,b,c,d,e,f,etc... In the view, I have a form which collects checkboxes's into filters[] which I can use in the controller with params[:filters]. My question is how do I filter the projects that contains at least one of those tags?

def index
    @search = Project.search(params[:search])
    @projects = @search.???
end

I thought something like

@projects = Project.search(:tags_contains => params[:filters])

or

params[:filters].each do |p|
    @projects ||= @search.where(["projects.tags like ?", p])
end

would work, but it doesn't seem to return anything. Any advice?

Example: Let's say checkboxes a and c were checked in the form which would be contained inside the params[:filters]. I have three projects:

Project     | Tags
------------+------
Project 1   | a,b
Project 2   | c
Project 3   | a,c
Project 4   | d

In this example I would want to return Project 1,2,3 since they contain at least a or c

Answer 1

Figured it out using the squeel gem...

params[:filters].each do |p|
     @projects ||= @search.where(["projects.tags like ?", "%#{p}%"])
end