Rule expressions

Firefly III features a powerful rule engine that comes with an expression language to execute actions on your transactions.

The expression language features something called "variables" that you can use in your expression. For example:

=description~notes

This will join the description and the notes together. A few examples can be found on the pages linked earlier in the text. But then the question becomes, which variables can I use? Well, here they are.

Text fields

• notes
• transaction_group_title
• description
• budget_name
• category_name
• tags

Use these fields to refer to specific fields in the transaction

Account and amount fields

Amount fields:

• amount
• currency_code
• currency_name
• currency_symbol
• currency_decimal_places
• foreign_amount
• foreign_currency_code
• foreign_currency_name
• foreign_currency_symbol
• foreign_currency_decimal_places

Account fields:

• source_account_id
• source_account_name
• source_account_iban
• source_account_type
• destination_account_id
• destination_account_name
• destination_account_iban
• destination_account_type

Dates

• created_at
• updated_at
• group_created_at
• group_updated_at
• date
• interest_date
• payment_date
• invoice_date
• book_date
• due_date
• process_date

These fields contain specific transaction dates, or "" when empty.