Hi.
I do a lot of csv-import of data and have previously been using Ruby
on Rails. And the only thing I miss about Rails (apart from database
migration) is the find_or_create_by methods.
Are there any similar methods in Django?
My use is like this:
I import a CSV file, and in one column there is a value (i.e. a
string). I don't want to store it as a string in Model1, but as a
foreign key to Model2 - thus trying to find a record that has the
string and returning the foreign key id if found - else create the
object in Model2.
>From the rails api:
# No 'Summer' tag exists
Tag.find_or_create_by_name("Summer") # equal to Tag.create(:name =>
"Summer")
# Now the 'Summer' tag does exist
Tag.find_or_create_by_name("Summer") # equal to Tag.find_by_name
("Summer")
# Now 'Bob' exist and is an 'admin'
User.find_or_create_by_name('Bob', :age => 40) { |u| u.admin =
true }
I know it's probably bad to say that Rails is good in some ways in a
Django forum, so forgive me :)
Anders
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