Created
March 7, 2010 20:41
-
-
Save netzfisch/324613 to your computer and use it in GitHub Desktop.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
namespace :db do | |
desc "load data from csv" | |
task :load_csv_data => :environment do | |
require 'fastercsv' | |
FasterCSV.foreach("importdata/tarife.csv", :headers => true, :col_sep => ',') do |row| | |
Anbieter.find_or_create_by_name( | |
:name => row['Anbieter_Name'] | |
:hotline => row['Hotline'], | |
:email => row['Email'] | |
) | |
associated_anbieter = Anbieter.find_by_name(row['Anbieter_Name']) | |
associated_kategorie = Kategorie.find_by_name(row['Kategorie']) | |
associated_netz = Netz.find_by_name(row['Netz']) | |
Tarif.create( | |
:anbieter_id => associated_anbieter.id, | |
:kategorie_id => associated_kategorie.id, | |
:netz_id => associated_netz.id, | |
:name => row['Tarif_Name'] | |
) | |
end | |
end | |
end |
With
:name => row['Anbieter_Name']
:hotline => row['Hotline'],
:email => row['Email']
I just do mapping of different column names.
The rest of the code fills two tabels (Anbieter, Tarif) and get the right assoziation filled (anbieter_id)!
Does that help?
I am sorry. I was referring to the associated_anbieter part. Instead of doing
Anbieter.find_or_create_by_name(
:name => row['Anbieter_Name']
:hotline => row['Hotline'],
:email => row['Email']
)
associated_anbieter = Anbieter.find_by_name(row['Anbieter_Name'])
couldn't you just do
associated_anbieter = Anbieter.find_or_create_by_name(
:name => row['Anbieter_Name']
:hotline => row['Hotline'],
:email => row['Email']
)
then you would save a database query. Or am I mistaken?
Thanks for this code, it has helped me a lot.
I guess so, did you try it meanwhile, h-?
Yea I got it to work. Thanks again for the code.
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
I am pretty new to rails still, but came across your code from a post on stack overflow.
Couldn't you just do (line 7):
associated_anbieter = Anbieter.find_or_create_by_name(
:name => row['Anbieter_Name']
:hotline => row['Hotline'],
:email => row['Email']
)
and skip the second lookup? or is that the right way to do it?
I am curious cause I am doing something very similar
(cant get the comment to look right, sorry)