Class: Peatio::Sql::Schema

Inherits:
Object
  • Object
show all
Defined in:
lib/peatio/sql/schema.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(sql_client) ⇒ Schema

Returns a new instance of Schema.


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# File 'lib/peatio/sql/schema.rb', line 5

def initialize(sql_client)
  @client = sql_client
end

Instance Attribute Details

#clientObject

Returns the value of attribute client


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# File 'lib/peatio/sql/schema.rb', line 3

def client
  @client
end

Instance Method Details

#create_database(name) ⇒ Object


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# File 'lib/peatio/sql/schema.rb', line 9

def create_database(name)
  client.query("CREATE DATABASE IF NOT EXISTS `#{ name }`;")
end

#create_tables(options = {}) ⇒ Object


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# File 'lib/peatio/sql/schema.rb', line 13

def create_tables(options = {})
  statements = []
  statements << "DROP TABLE IF EXISTS `operations`;" if options[:drop_if_exists]
  statements << <<-EOF
CREATE TABLE IF NOT EXISTS `operations` (
id              INT UNSIGNED NOT NULL AUTO_INCREMENT,
code            TINYINT UNSIGNED NOT NULL,
account_id      INT UNSIGNED NOT NULL,
reference       INT UNSIGNED NOT NULL,
debit           DECIMAL(32, 16) NOT NULL,
credit          DECIMAL(32, 16) NOT NULL,
created_at      DATETIME NOT NULL,
updated_at      DATETIME NOT NULL,
PRIMARY KEY     (id),
INDEX `balance_key` (account_id, debit, credit)
) ENGINE = InnoDB;
EOF

  statements << "DROP TABLE IF EXISTS `orders`;" if options[:drop_if_exists]
  statements << <<EOF
CREATE TABLE IF NOT EXISTS`orders` (
  `id`          INT(11) UNSIGNED NOT NULL AUTO_INCREMENT,
  `uid`         INT(11) UNSIGNED NOT NULL,
  `bid`         VARCHAR(5) NOT NULL,
  `ask`         VARCHAR(5) NOT NULL,
  `market`      VARCHAR(10) NOT NULL,
  `price`       DECIMAL(32,16) DEFAULT NULL,
  `volume`      DECIMAL(32,16) NOT NULL,
  `fee`         DECIMAL(32,16) NOT NULL DEFAULT '0.0000000000000000',
  `type`        TINYINT UNSIGNED NOT NULL,
  `state`       TINYINT UNSIGNED NOT NULL,
  `created_at`  DATETIME NOT NULL,
  `updated_at`  DATETIME NOT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
EOF

  statements << "DROP TABLE IF EXISTS `trades`;" if options[:drop_if_exists]
  statements << <<EOF
CREATE TABLE IF NOT EXISTS `trades` (
  `id`          int(11) NOT NULL AUTO_INCREMENT,
  `market`      varchar(10) NOT NULL,
  `volume`      decimal(32,16) NOT NULL,
  `price`       decimal(32,16) NOT NULL,
  `ask_id`      int(11) NOT NULL,
  `bid_id`      int(11) NOT NULL,
  `ask_uid`     int(11) NOT NULL,
  `bid_uid`     int(11) NOT NULL,
  `created_at` datetime NOT NULL,
  `updated_at` datetime NOT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
EOF
  statements.each do |statement|
    puts statement
    client.query(statement)
  end
end