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https://gitlab.com/mbugroup/lti-api.git
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feat[BE]: implement customer payment report retrieval with pagination and filtering
This commit is contained in:
aguhh18
@@ -0,0 +1,205 @@
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package repositories
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import (
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"context"
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"time"
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"gorm.io/gorm"
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)
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type CustomerPaymentTransaction struct {
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TransactionType string `gorm:"column:transaction_type"`
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TransactionID int64 `gorm:"column:transaction_id"`
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CustomerID int64 `gorm:"column:customer_id"`
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TransDate time.Time `gorm:"column:trans_date"`
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DeliveryDate *time.Time `gorm:"column:delivery_date"`
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Reference string `gorm:"column:reference"`
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VehicleNumbers string `gorm:"column:vehicle_numbers"`
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Qty float64 `gorm:"column:qty"`
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Weight float64 `gorm:"column:weight"`
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AverageWeight float64 `gorm:"column:average_weight"`
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Price float64 `gorm:"column:price"`
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CreditNote float64 `gorm:"column:credit_note"`
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FinalPrice float64 `gorm:"column:final_price"`
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PPN float64 `gorm:"column:ppn"`
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TotalPrice float64 `gorm:"column:total_price"`
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PaymentAmount float64 `gorm:"column:payment_amount"`
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PickupInfo string `gorm:"column:pickup_info"`
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SalesPerson string `gorm:"column:sales_person"`
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}
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type CustomerPaymentRepository interface {
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GetCustomerPaymentTransactions(ctx context.Context, customerID *uint) ([]CustomerPaymentTransaction, error)
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GetInitialBalanceByCustomer(ctx context.Context, customerID uint) (float64, error)
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GetCustomerIDsWithTransactions(ctx context.Context, limit, offset int) ([]uint, int64, error)
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}
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type customerPaymentRepositoryImpl struct {
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db *gorm.DB
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}
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func NewCustomerPaymentRepository(db *gorm.DB) CustomerPaymentRepository {
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return &customerPaymentRepositoryImpl{db: db}
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}
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func (r *customerPaymentRepositoryImpl) GetCustomerPaymentTransactions(ctx context.Context, customerID *uint) ([]CustomerPaymentTransaction, error) {
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// Build SALES subquery
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salesQuery := r.db.WithContext(ctx).
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Table("marketings m").
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Select(`
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'SALES' AS transaction_type,
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m.id::BIGINT AS transaction_id,
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c.id::BIGINT AS customer_id,
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m.so_date::DATE AS trans_date,
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MAX(mdp.delivery_date)::DATE AS delivery_date,
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m.so_number AS reference,
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COALESCE(STRING_AGG(DISTINCT mdp.vehicle_number, ', ') FILTER (WHERE mdp.vehicle_number IS NOT NULL AND mdp.vehicle_number != ''), '') AS vehicle_numbers,
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COALESCE(SUM(COALESCE(mp.qty, 0)), 0)::NUMERIC(15,3) AS qty,
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COALESCE(SUM(COALESCE(mdp.total_weight, mp.total_weight, 0)), 0)::NUMERIC(15,3) AS weight,
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CASE WHEN COALESCE(SUM(COALESCE(mp.qty, 0)), 0) > 0
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THEN (COALESCE(SUM(COALESCE(mdp.total_weight, mp.total_weight, 0)), 0) / COALESCE(SUM(COALESCE(mp.qty, 0)), 0))::NUMERIC(15,3)
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ELSE 0::NUMERIC(15,3)
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END AS average_weight,
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COALESCE(AVG(COALESCE(mdp.unit_price, mp.unit_price, 0)), 0)::NUMERIC(15,3) AS price,
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0::NUMERIC(15,3) AS credit_note,
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COALESCE(SUM(COALESCE(mdp.total_price, mp.total_price)), 0)::NUMERIC(15,3) AS final_price,
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0::NUMERIC(15,3) AS ppn,
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COALESCE(SUM(COALESCE(mdp.total_price, mp.total_price)), 0)::NUMERIC(15,3) AS total_price,
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0::NUMERIC(15,3) AS payment_amount,
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COALESCE(STRING_AGG(DISTINCT w.name, ', ') FILTER (WHERE w.name IS NOT NULL), '') AS pickup_info,
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MAX(u.name) AS sales_person
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`).
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Joins("INNER JOIN customers c ON c.id = m.customer_id").
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Joins("LEFT JOIN marketing_products mp ON mp.marketing_id = m.id").
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Joins("LEFT JOIN marketing_delivery_products mdp ON mdp.marketing_product_id = mp.id").
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Joins("LEFT JOIN product_warehouses pw ON pw.id = mp.product_warehouse_id").
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Joins("LEFT JOIN warehouses w ON w.id = pw.warehouse_id").
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Joins("LEFT JOIN users u ON u.id = m.sales_person_id").
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Where("m.deleted_at IS NULL").
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Where("c.deleted_at IS NULL")
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if customerID != nil {
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salesQuery = salesQuery.Where("c.id = ?", *customerID)
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}
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salesQuery = salesQuery.Group("m.id, c.id, m.so_date, m.so_number")
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// Build PAYMENT subquery
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paymentQuery := r.db.WithContext(ctx).
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Table("payments p").
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Select(`
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'PAYMENT' AS transaction_type,
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p.id::BIGINT AS transaction_id,
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c.id::BIGINT AS customer_id,
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p.payment_date::DATE AS trans_date,
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NULL AS delivery_date,
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COALESCE(p.reference_number, p.payment_code) AS reference,
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'-' AS vehicle_numbers,
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0::NUMERIC(15,3) AS qty,
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0::NUMERIC(15,3) AS weight,
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0::NUMERIC(15,3) AS average_weight,
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0::NUMERIC(15,3) AS price,
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0::NUMERIC(15,3) AS credit_note,
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0::NUMERIC(15,3) AS final_price,
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0::NUMERIC(15,3) AS ppn,
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0::NUMERIC(15,3) AS total_price,
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p.nominal::NUMERIC(15,3) AS payment_amount,
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'-' AS pickup_info,
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'-' AS sales_person
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`).
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Joins("INNER JOIN customers c ON c.id = p.party_id").
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Where("p.party_type = ?", "CUSTOMER").
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Where("p.direction = ?", "IN").
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Where("p.transaction_type = ?", "PENJUALAN").
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Where("p.deleted_at IS NULL").
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Where("c.deleted_at IS NULL")
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if customerID != nil {
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paymentQuery = paymentQuery.Where("c.id = ?", *customerID)
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}
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// Combine with UNION ALL and execute
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var results []CustomerPaymentTransaction
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err := r.db.WithContext(ctx).
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Raw("? UNION ALL ? ORDER BY customer_id, trans_date, transaction_type DESC, transaction_id",
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salesQuery,
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paymentQuery,
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).
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Scan(&results).
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Error
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if err != nil {
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return nil, err
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}
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return results, nil
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}
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func (r *customerPaymentRepositoryImpl) GetInitialBalanceByCustomer(ctx context.Context, customerID uint) (float64, error) {
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var result struct {
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Nominal float64
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}
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err := r.db.WithContext(ctx).
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Table("payments").
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Select("COALESCE(SUM(nominal), 0) as nominal").
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Where("party_type = ?", "CUSTOMER").
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Where("party_id = ?", customerID).
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Where("transaction_type = ?", "SALDO_AWAL").
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Where("deleted_at IS NULL").
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Scan(&result).
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Error
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if err != nil {
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return 0, err
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}
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return result.Nominal, nil
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}
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func (r *customerPaymentRepositoryImpl) GetCustomerIDsWithTransactions(ctx context.Context, limit, offset int) ([]uint, int64, error) {
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// Subquery to get all distinct customer IDs with transactions
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subQuery := r.db.WithContext(ctx).
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Table("(" +
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"SELECT DISTINCT c.id as customer_id FROM marketings m " +
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"INNER JOIN customers c ON c.id = m.customer_id " +
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"WHERE m.deleted_at IS NULL AND c.deleted_at IS NULL " +
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"UNION " +
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"SELECT DISTINCT c.id as customer_id FROM payments p " +
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"INNER JOIN customers c ON c.id = p.party_id " +
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"WHERE p.party_type = 'CUSTOMER' AND p.direction = 'IN' " +
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"AND p.transaction_type = 'PENJUALAN' AND p.deleted_at IS NULL AND c.deleted_at IS NULL" +
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") as customer_ids")
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// Count total customers
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var total int64
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if err := subQuery.Count(&total).Error; err != nil {
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return nil, 0, err
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}
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// Get paginated customer IDs
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var customerIDs []uint
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err := r.db.WithContext(ctx).
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Table("("+
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"SELECT DISTINCT c.id as customer_id FROM marketings m "+
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"INNER JOIN customers c ON c.id = m.customer_id "+
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"WHERE m.deleted_at IS NULL AND c.deleted_at IS NULL "+
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"UNION "+
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"SELECT DISTINCT c.id as customer_id FROM payments p "+
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"INNER JOIN customers c ON c.id = p.party_id "+
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"WHERE p.party_type = 'CUSTOMER' AND p.direction = 'IN' "+
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"AND p.transaction_type = 'PENJUALAN' AND p.deleted_at IS NULL AND c.deleted_at IS NULL"+
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") as customer_ids").
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Select("customer_id").
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Order("customer_id ASC").
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Limit(limit).
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Offset(offset).
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Pluck("customer_id", &customerIDs).
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Error
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if err != nil {
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return nil, 0, err
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}
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return customerIDs, total, nil
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}
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