Displaying 3 results from an estimated 3 matches for "invoice_no".
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invoice_id
2006 May 19
7
AR transactions and isolation levels
...ow things really work.
Anyway.. Consider this example code:
Class Invoice < ActiveRecord::Base
def self.create_new
self.transaction do
self.connection.execute("set transaction isolation level
serializable, read write")
last = Invoice.find(:first, :order => "invoice_no desc")
invoice = Invoice.new
invoice.invoice_no = last.invoice_no + 1
sleep(10)
invoice.save!
end
end
end
______
I couldn''t find an ''AR way'' to set the isolation level, thus drop down
to execute(). Any better approaches?
If i understan...
2006 Sep 28
3
A few questions about numbers and dates
...=
require ''rubygems''
require ''ferret''
require ''date''
p Ferret::VERSION
@dir = Ferret::Store::RAMDirectory.new
@index = Ferret::Index::Index.new(:dir => @dir)
invoice = {:invoice_date => Date.new(2006,9,20), :invoice_value =>
44.50, :invoice_no => 45656, :invoice_to => ''Nev''}
@index << invoice
doc = @index[0].load
doc.fields.each do |f|
p f
p doc[f].class
p doc[f]
end
==========================
>ruby test_format.rb
"0.10.6"
:invoice_date
String
"2006-09-20"
:invoice_value
Str...
2005 Jan 19
5
easing out of Excel
I know enough about R to be dangerous and our marketing people have asked me to "automate" some reporting. Data comes from an SQL source and graphs and various summaries are currently created manually in Excel. The raw information is invoicing records and the reporting is basically summaries by customer, region, product line etc.
With function such as aggregate(), hist() and pareto()