48 lines
1.2 KiB
Ruby
48 lines
1.2 KiB
Ruby
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class TransactionsQuery
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def initialize user
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@user = user
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@transactions = Arel::Table.new(:transactions)
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end
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def arel
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Arel::SelectManager.new(ActiveRecord::Base)
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.from(transactions)
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.project(
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@transactions[:amount],
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@transactions[:date],
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@transactions[:peer_id],
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@transactions[:issuer_id],
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@transactions[:message]
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)
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end
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def transactions
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Arel::Nodes::UnionAll.new(outgoing, incoming)
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end
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def outgoing
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@transactions
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.where(@transactions[:debtor_id].eq(@user.id))
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.project(
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(@transactions[:amount]*Arel::Nodes::SqlLiteral.new("-1")).as('amount'),
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@transactions[:creditor_id].as('peer_id'),
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@transactions[:created_at].as('date'),
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@transactions[:issuer_id],
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@transactions[:issuer_type]
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)
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end
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def incoming
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@user.incoming_transactions.arel
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@transactions
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.where(@transactions[:debtor_id].eq(@user.id))
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.project(
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@transactions[:amount],
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@transactions[:debtor_id].as('peer_id'),
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@transactions[:created_at].as('date'),
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@transactions[:issuer_id],
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@transactions[:issuer_type]
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)
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end
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end
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