This is a small gem that hooks into ActiveRecord and allows to tag a database field (date or datetime) as birthday, allowing to find birthdays with ease.
To install this gem, fire this command from your terminal:
gem install birthday
or add this line to your Gemfile:
gem 'birthday', '~> 0.3.0'
After installing this gem, you are able to work with anniversaries, such as birthdays in such a manner:
class User < ActiveRecord::Base
acts_as_birthday :birthday
end
Add acts_as_birthday :field_name to your ActiveRecord model (or symbols for multiple fields, if you need to), and right away you can access methods:
birthday_age- which will calculate current anniversary/age from the point in time,birthday_today?- which will return true or false, depending on whether the anniversary happens today.
If you add more fields to acts_as_birthday method, like:
acts_as_birthday :birthday, :anniversary, :something_else
it will automatically create methods: birthday_age, birthday_today?, anniversary_age, anniversary_today?, something_else_age, something_else_today?.
On top of that you get useful scopes: birthday_today, find_birthdays_for, anniversary_today, find_anniversaries_for, something_else_today, and find_something_elses_for.
These scopes accept maximum of two parameters, which have to respond to method to_date (by default objects of class Date, Time and DateTime). Thanks to these now you can search for birthdays...
-
today:
# Let's say today is April 24th: > User.birthday_today => [#<User id: 56, birthday: "1976-04-24">] -
on a specific date:
> User.find_birthdays_for(Date.parse('04-04-2000')) => [#<User id: 23, birthday: "1961-04-04">, #<User id: 34, birthday: "1985-04-04">] -
between a specific range:
> User.find_birthdays_for(Date.parse('04-04-2000'), Date.parse('05-04-2000')) => [#<User id: 23, birthday: "1961-04-04">, #<User id: 34, birthday: "1985-04-04">, #<User id: 56, birthday: "1976-04-24">, #<User id: 57, birthday: "1958-04-30">, #<User id: 60, birthday: "1986-05-04">] -
and even at the turn of the years:
# This will search for birthdays between 12.12 and 3.01 > User.find_birthdays_for(Date.parse('12-12-2000'), Date.parse('03-01-2001')) => [#<User id: 1, birthday: "1961-12-14">, #<User id: 12, birthday: "1985-12-15">, #<User id: 25, birthday: "1961-12-24">, #<User id: 27, birthday: "1985-01-01">, #<User id: 40, birthday: "1961-01-02">]
Since all these are essentially scopes, there's nothing stopping you from chaining them with other scopes:
class User < ActiveRecord::Base
acts_as_birthday :birthday
scope :admins, {:is_admin => true}
scope :named_like, lambda { |name| { :conditions => [ "first_name LIKE :q OR email LIKE :q OR last_name LIKE :q", { :q => "%#{name}%" } ] } }
end
> User.admins.named_like("Mike").find_birthdays_for(Date.parse('12-12-2000'), Date.parse('03-01-2001'))
At this moment, this gem supports MySQL, PostgreSQL and SQLite databases. If you want to support another type of database, you can write your own adapter.
You can create your own birthday adapters for the ORM adapters we're not supporting yet by writing a class with a class method scope_hash, which will return a hash normally used in active_record scopes.
module Railslove
module Acts
module Birthday
module Adapter
class SqliteAdapter
def self.scope_hash(field, date_start, date_end)
# do some magic and return scope hash you can use
# field is the field used in the database
# date_start and date_end can be anything that responds to .to_date method
end
end
end
end
end
end
With this namespacing (Railslove::Acts::Birthday::Adapter) and naming the class after active_record's ORM adapter (like SqliteAdapter in the example above) you can automatically use your own adapters with this gem.
If you happen to write one of the adapters, don't hesitate to make a pull request! You will help the whole Ruby community with it!
- kick class_eval?
- Fork the project.
- Create a feature branch
- Make your feature addition or bug fix.
- Add tests.
- Commit, do not mess with Rakefile, version, or history.
- Send me a pull request.
-
- added
*field*_todayscopes to quickly look up anniversaries for today (acts likefind_*field*s_for(Date.today))
- added
-
- fixed autoloading of
Adapterclass in Rails 2 environment - updated README to include examples
- fixed autoloading of
-
- big batch of refactoring (still no changes in availalbe methods)
-
- moving custom adapter definition from
acts_as_birthdaymethod params to a separate scope - first batch of refactoring (no changes in available methods)
- moving custom adapter definition from
-
v0.0.1
- initial version
Copyright (c) 2011 Railslove
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