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Falsehoods programmers believe about prices

1. You can store a price in a floating point variable.
2. All currencies are subdivided in 1/100th units (like US dollar/cents, euro/eurocents etc.).
3. All currencies are subdivided in decimal units (like dinar/fils)
4. All currencies currently in circulation are subdivided in decimal units. (to exclude shillings, pennies) (counter-example: MGA)
5. All currencies are subdivided. (counter-examples: KRW, COP, JPY... Or subdivisions can be deprecated.)
6. Prices can't have more precision than the smaller sub-unit of the currency. (e.g. gas prices)
7. For any currency you can have a price of 1. (ZWL)
8. Every country has its own currency. (EUR is the best example, but also Franc CFA, etc.)

sugarfree1

##################### mailers/welcome.rb
module MyNamespace::Mailers
  class Welcome
    include Hanami::Mailer

    templates

    from    'noreply@bookshelf.org'
    to      'user@example.com'
    subject 'Welcome to Bookshelf'

sugarfree1

##################### mailers/welcome.rb
class Mailers::Welcome
  include Hanami::Mailer

  templates

  from    'noreply@bookshelf.org'
  to      'user@example.com'
  subject 'Welcome to Bookshelf'

sugarfree1

-- estimation storage table
CREATE TABLE ISSUE_ESTIMATION(
  N_ESTIMATION_ID NUMBER,
  VC_PREDICTOR    VARCHAR2(64) NOT NULL,
  VC_ISSUE        VARCHAR2(64) NOT NULL,
  N_ESTIMATION    NUMBER NOT NULL,
  D_ESTIMATION    DATE NOT NULL);
  
ALTER TABLE ISSUE_ESTIMATION
add constraint PK_ISSUE_ESTIMATION primary key (N_ESTIMATION_ID);