update attributes method

This commit is contained in:
Chris Anderson 2008-10-03 12:58:45 -07:00
parent 1e9e550428
commit ba16fb586a
2 changed files with 52 additions and 2 deletions

View file

@ -247,7 +247,7 @@ module CouchRest
# #
# To understand the capabilities of this view system more compeletly, # To understand the capabilities of this view system more compeletly,
# it is recommended that you read the RSpec file at # it is recommended that you read the RSpec file at
# <tt>spec/core/model.rb</tt>. # <tt>spec/core/model_spec.rb</tt>.
def view_by *keys def view_by *keys
opts = keys.pop if keys.last.is_a?(Hash) opts = keys.pop if keys.last.is_a?(Hash)
opts ||= {} opts ||= {}
@ -386,6 +386,19 @@ module CouchRest
self['_rev'] self['_rev']
end end
# Takes a hash as argument, and applies the values by using writer methods
# for each key. Raises a NoMethodError if the corresponding methods are
# missing. In case of error, no attributes are changed.
def update_attributes hash
hash.each do |k, v|
raise NoMethodError, "#{k}= method not available, use key_accessor or key_writer :#{key}" unless self.respond_to?("#{k}=")
end
hash.each do |k, v|
self.send("#{k}=",v)
end
save
end
# returns true if the document has never been saved # returns true if the document has never been saved
def new_record? def new_record?
!rev !rev

View file

@ -133,6 +133,41 @@ describe CouchRest::Model do
end end
end end
describe "update attributes" do
before(:each) do
a = Article.get "big-bad-danger" rescue nil
a.destroy if a
@art = Article.new(:title => "big bad danger")
@art.save
end
it "should work for attribute= methods" do
@art['title'].should == "big bad danger"
@art.update_attributes('date' => Time.now, :title => "super danger")
@art['title'].should == "super danger"
end
it "should flip out if an attribute= method is missing" do
lambda {
@art.update_attributes('slug' => "new-slug", :title => "super danger")
}.should raise_error
end
it "should not change other attributes if there is an error" do
lambda {
@art.update_attributes('slug' => "new-slug", :title => "super danger")
}.should raise_error
@art['title'].should == "big bad danger"
end
it "should save" do
@art['title'].should == "big bad danger"
@art.update_attributes('date' => Time.now, :title => "super danger")
loaded = Article.get @art.id
loaded['title'].should == "super danger"
end
end
describe "a model with template values" do describe "a model with template values" do
before(:all) do before(:all) do
@tmpl = WithTemplate.new @tmpl = WithTemplate.new
@ -326,7 +361,9 @@ describe CouchRest::Model do
end end
describe "a model with timestamps" do describe "a model with timestamps" do
before(:all) do before(:each) do
oldart = Article.get "saving-this" rescue nil
oldart.destroy if oldart
@art = Article.new(:title => "Saving this") @art = Article.new(:title => "Saving this")
@art.save @art.save
end end