Hello,
I’m trying to extract data from two related tables and send only
specified fields to a method that creates a csv export. The problem
is when send the data from the find method, only some of the fields
match up in the export and are actually exported. I really only need
to export the email, phone, and organization fields from the users table
and the first_name, last_name, and expire_on fields from the accounts
table. Accounts belongs_to the users table via the user_id.
@account_all = Account.find(:all, :select => 'accounts.*,
users.email, users.phone, users.organization',
:conditions => @conditions,
:joins => "LEFT OUTER JOIN users on
users.id = accounts.id" ,
:order => 'accounts.created_at DESC')
I tried to scrub the fields I needed using the collect method:
@format_account = @account_all.collect do |account|
account.first_name = account.first_name
account.last_name = account.last_name
account.phone = account.phone
account.email = account.email
account.organization = account.organization
account
end if @account_all
here’s the method call and export
@account_keys = ['first_name', 'last_name', 'phone','email',
'organization']
csv_string = format_faster_csv(@format_account, @account_keys)
send_data(csv_string, :type => 'text/csv; charset=iso-8859-1;
header=present', :disposition => "attachment;
filename=exported_accounts.csv")
Here’s the export method:
def format_faster_csv(csv_array, fields=csv_array.first.keys)
csv_string = FasterCSV.generate do |csv|
csv << fields.map {|f| f.titleize}
csv_array.each do |row|
csv << fields.map{|f| row[f]}
end
end
end
Any idea what I’m doing wrong?