Smplifying my nested if statement

I have trouble in building nested if statements. Kindly please help and
correct me. I have an index page in which I show records based on some
condition. My controller code for that is,

def index_orderSummary
if Date.today.month>=4
@order_summary =
OrderSummary.where(:created_at=>("#{Time.now.year}-04-01")…("#{Time.now.year+1}-03-31"))
else
@order_summary =
OrderSummary.where(:created_at=>("#{Time.now.year-1}-04-01")…("#{Time.now.year}-03-31"))
end
@order_summary = @order_summary.paginate(page:
params[:page]).per_page(10).order(“order_no ASC”)
end

I have used a search box for which I have written the following method
in the controller.

def search
if params[:id] == “search-order” then
@order_summary =
OrderSummary.where(:created_at=>("#{Time.now.year}-04-01")…("#{Time.now.year+1}-03-31")).search(params[:search])
@order_summary = @order_summary.paginate(page:
params[:page]).per_page(5).order(‘order_no ASC’)
render :action => :index_orderSummary
elsif params[:id] == “search-issue” then
@issue =
Issue.where(:created_at=>("#{Time.now.year}-04-01")…("#{Time.now.year+1}-03-31")).search(params[:search])
@issue = @issue.paginate(page:
params[:page]).per_page(10).order(“issue_slip_no ASC”)
render :action => :index_issues
elsif params[:id] == “search-labour”
@labour =
Labour.where(:created_at=>("#{Time.now.year}-04-01")…("#{Time.now.year+1}-03-31")).search(params[:search])
@labour = @labour.paginate(page:
params[:page]).per_page(10).order(“issue_slip_no ASC”)
render :action => :index_labour
end
end

now what all I need is, I want to integrate both my search and index

methods.

My index methods already having an if else statement., now i want to
check if params comes from search then I want to display the searched
results in the index. How do I achieve that? Pls intimate, if my
question is not clear…

Thanks in advance.