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module MultiSite::ScopedValidation
# scoping validations to the site should be very simple
# all you would normally need is something like this:
#
# validates_uniqueness_of :email, :scope => :site_id
#
# but if you want to scope core trusty classes, you have a problem:
# their uniqueness validations have already been declared
# The only answer is to reach right back and change the validates_uniqueness_of method
# and to make it more awkward, that has to happen so early that we can't reflect on the site association.
# Hence the check for a site_id column. It's a hack, but a fairly harmless one.
def validates_uniqueness_of(*attr)
if database_exists?
if table_exists? && column_names.include?('site_id')
configuration = attr.extract_options!
configuration[:scope] ||= :site_id
attr.push(configuration)
end
super(*attr)
end
end
def database_exists?
ActiveRecord::Base.connection
rescue ActiveRecord::NoDatabaseError
false
else
true
end
end
ActiveRecord::Validations::ClassMethods.prepend MultiSite::ScopedValidation
Version data entries
26 entries across 26 versions & 1 rubygems