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add ability to start auto increment at a value other then 1. #1

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6 changes: 3 additions & 3 deletions README.rdoc
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Original file line number Diff line number Diff line change
Expand Up @@ -10,7 +10,7 @@
include MongoMapper::Document
include MongoAutoincrement

has_autoincrement :code, :zerofill=>10
has_autoincrement :code, :zerofill=>10, :start=>3000
end


Expand All @@ -19,12 +19,12 @@
> order.save
=> true
> order.code
=> "0000000008"
=> "0000003008"

> order2 = Order.new
=> #<Order _id: 4b744d79421aa95b91000002, code: nil>
> order2.save
=> true
> order2.code
=> "0000000009"
=> "0000003009"

4 changes: 3 additions & 1 deletion lib/mongo_autoincrement.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,7 @@ def self.included(model)
class << model
attr_accessor :autoincrement_key
attr_accessor :autoincrement_zerofill
attr_accessor :autoincrement_start
end
model.class_eval do
model.extend( ClassMethods )
Expand All @@ -21,6 +22,7 @@ def has_autoincrement(source_key, options={})

self.autoincrement_key = source_key
self.autoincrement_zerofill = options[:zerofill] || 0
self.autoincrement_start = options[:start] || 1

send :include, InstanceMethods
end
Expand All @@ -43,7 +45,7 @@ def create_autoincrement
end

def get_succ
self.class.count==0 ? 1 : self.class.first(:select=>self.class.autoincrement_key.to_s, :order=>"#{self.class.autoincrement_key.to_s} desc").code.succ.to_i
self.class.count==0 ? self.class.autoincrement_start : self.class.first(:select=>self.class.autoincrement_key.to_s, :order=>"#{self.class.autoincrement_key.to_s} desc").code.succ.to_i
end

def is_unique(current_code)
Expand Down