45 lines
1.5 KiB
Ruby
45 lines
1.5 KiB
Ruby
class FinancialLink < ApplicationRecord
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has_many :bank_transactions
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has_many :financial_transactions
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has_many :invoices
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scope :incomplete, -> { with_full_sum.where.not('full_sums.full_sum' => 0) }
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scope :unused, -> {
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includes(:bank_transactions, :financial_transactions, :invoices)
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.where(bank_transactions: { financial_link_id: nil })
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.where(financial_transactions: { financial_link_id: nil })
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.where(invoices: { financial_link_id: nil })
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}
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scope :with_full_sum, -> {
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select(:id, :note, :full_sum).joins(<<-SQL)
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LEFT JOIN (
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SELECT id, COALESCE(bt_sum, 0) - COALESCE(ft_sum, 0) + COALESCE(i_sum, 0) AS full_sum
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FROM financial_links fl
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LEFT JOIN (
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SELECT financial_link_id, SUM(amount) AS bt_sum
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FROM bank_transactions
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GROUP BY financial_link_id
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) bt ON bt.financial_link_id = fl.id
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LEFT JOIN (
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SELECT financial_link_id, SUM(amount) AS ft_sum
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FROM financial_transactions
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GROUP BY financial_link_id
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) ft ON ft.financial_link_id = fl.id
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LEFT JOIN (
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SELECT financial_link_id, SUM(amount) AS i_sum
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FROM invoices
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GROUP BY financial_link_id
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) i ON i.financial_link_id = fl.id
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) full_sums ON full_sums.id = financial_links.id
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SQL
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}
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def self.first_unused_or_create
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unused.first || create
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end
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def amount
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bank_transactions.sum(:amount) + invoices.sum(:amount) - financial_transactions.sum(:amount)
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end
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end
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