Class: CreateI2cSettings

Inherits:
ActiveRecord::Migration
  • Object
show all
Defined in:
lib/db/migrate/012_create_i2c_settings.rb

Class Method Summary collapse

Class Method Details

.down ⇒ Object 



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# File 'lib/db/migrate/012_create_i2c_settings.rb', line 18

def self.down
  drop_table :i2c_settings
end

.up ⇒ Object 



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# File 'lib/db/migrate/012_create_i2c_settings.rb', line 2

def self.up
  create_table "i2c_settings", force: :cascade do |t|
    t.text    "address_w"
    t.text    "address_r"
    t.integer "frequency"
    t.integer "write_page_latency"
    t.integer "page_size"
    t.integer "total_size"
    t.integer "chip_id",               limit: 4, null: false
  end

  add_index "i2c_settings", ["chip_id"], name: "index_i2c_settings_on_chip_id", unique: true, using: :btree

  add_foreign_key "i2c_settings", "chips"
end