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Maybe/app/models/loan.rb
Zach Gollwitzer 65db49273c
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Account Activity View + Account Forms (#1406)
* Remove balance mode, sketch out refactor

* Activity view checkpoint

* Entry partials, checkpoint

* Finish txn partial

* Give entries context when editing for different turbo responses

* Calculate change of balance for each entry

* Account tabs consolidation

* Translations, linting, brakeman updates

* Account actions concern

* Finalize forms, get account system tests passing

* Get tests passing

* Lint, rubocop, schema updates

* Improve routing and stream responses

* Fix broken routes

* Add import option for adding accounts

* Fix system test

* Fix test specificity

* Fix sparklines

* Improve account redirects
2024-11-04 20:27:31 -05:00

27 lines
729 B
Ruby

class Loan < ApplicationRecord
include Accountable
def monthly_payment
return nil if term_months.nil? || interest_rate.nil? || rate_type.nil? || rate_type != "fixed"
return Money.new(0, account.currency) if account.original_balance.amount.zero? || term_months.zero?
annual_rate = interest_rate / 100.0
monthly_rate = annual_rate / 12.0
if monthly_rate.zero?
payment = account.original_balance.amount / term_months
else
payment = (account.original_balance.amount * monthly_rate * (1 + monthly_rate)**term_months) / ((1 + monthly_rate)**term_months - 1)
end
Money.new(payment.round, account.currency)
end
def color
"#D444F1"
end
def icon
"hand-coins"
end
end