name: crypto
tables:
  - name: coins
    columns:
      - name: id
        type: int
        unsigned: true
        auto_increment: true
      - name: code
        type: varchar(5)
      - name: name
        type: varchar(200)
      - name: ref_url
        type: text
    primary_key: id
  - name: locations
    columns:
      - name: id
        type: int
        unsigned: true
        auto_increment: true
      - name: name
        type: varchar(100)
      - name: description
        type: varchar(200)
    primary_key: id
  - name: transactions
    columns:
      - name: id
        type: int
        unsigned: true
        auto_increment: true
      - name: date_time
        type: datetime
      - name: coin_id
        type: int
        unsigned: true
      - name: wallet_id
        type: int
        unsigned: true
      - name: amount
        type: double
      - name: value
        type: double
      - name: unit_id
        type: int
        unsigned: true
    primary_key: id
    foreign_keys:
      - table: coins
        local_column: coin_id
        foreign_column: id
      - table: wallets
        local_column: wallet_id
        foreign_column: id
      - table: coins
        local_column: unit_id
        foreign_column: id
  - name: values
    columns:
      - name: id
        type: int
        unsigned: true
        auto_increment: true
      - name: date_time
        type: datetime
      - name: coin_id
        type: int
        unsigned: true
      - name: value
        type: double
      - name: unit_id
        type: int
        unsigned: true
    primary_key: id
    foreign_keys:
      - table: coins
        local_column: coin_id
        foreign_column: id
      - table: coins
        local_column: unit_id
        foreign_column: id
  - name: wallets
    columns:
      - name: id
      - name: name
      - name: location_id
      - name: public_address
    primary_key: id