364 lines
13 KiB
Go
364 lines
13 KiB
Go
package exporter
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import (
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"encoding/json"
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"errors"
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"strconv"
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"strings"
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)
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type BuildRequest struct {
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MainTable string
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Datasource string
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Fields []string // table.field
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Filters map[string]interface{}
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}
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func BuildSQL(req BuildRequest, whitelist map[string]bool) (string, []interface{}, error) {
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if req.MainTable != "order" && req.MainTable != "order_info" {
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return "", nil, errors.New("unsupported main table")
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}
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cols := []string{}
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need := map[string]bool{}
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for _, tf := range req.Fields {
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if !whitelist[tf] {
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return "", nil, errors.New("field not allowed")
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}
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parts := strings.Split(tf, ".")
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if len(parts) != 2 {
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return "", nil, errors.New("invalid field format")
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}
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t, f := parts[0], parts[1]
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need[t] = true
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if t == "order" {
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if req.MainTable == "order_info" {
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switch f {
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case "order_number": f = "order_no"
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case "key": f = "key_code"
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case "creator": f = "user_id"
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case "out_trade_no": f = "out_order_no"
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case "plan_id": f = "activity_id"
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case "reseller_id": f = "merchant_id"
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case "product_id": f = "goods_id"
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case "pay_amount": f = "pay_price"
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case "key_batch_id": f = "key_batch_name"
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}
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cols = append(cols, "`order_info`."+escape(f))
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continue
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}
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if f == "status" {
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cols = append(cols, "CASE `order`.type " +
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"WHEN 1 THEN (CASE `order`.status WHEN 0 THEN '待充值' WHEN 1 THEN '充值中' WHEN 2 THEN '已完成' WHEN 3 THEN '充值失败' WHEN 4 THEN '已取消' WHEN 5 THEN '已过期' WHEN 6 THEN '待支付' END) " +
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"WHEN 2 THEN (CASE `order`.status WHEN 0 THEN '待领取' WHEN 1 THEN '待领取' WHEN 2 THEN '已领取' WHEN 3 THEN '领取失败' WHEN 4 THEN '已取消' WHEN 5 THEN '已过期' WHEN 6 THEN '待支付' END) " +
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"WHEN 3 THEN (CASE `order`.status WHEN 0 THEN '待领取' WHEN 1 THEN '待领取' WHEN 2 THEN '已核销' WHEN 3 THEN '领取失败' WHEN 4 THEN '已取消' WHEN 5 THEN '已过期' WHEN 6 THEN '' END) " +
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"ELSE (CASE `order`.status WHEN 0 THEN '待充值' WHEN 1 THEN '充值中' WHEN 2 THEN '已完成' WHEN 3 THEN '充值失败' WHEN 4 THEN '已取消' WHEN 5 THEN '已过期' WHEN 6 THEN '待支付' END) END AS status")
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} else if f == "type" {
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cols = append(cols, "CASE `order`.type WHEN 1 THEN '直充卡密' WHEN 2 THEN '立减金' WHEN 3 THEN '红包' ELSE '' END AS type")
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} else if f == "type" {
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cols = append(cols, "CASE `order`.type WHEN 1 THEN '直充卡密' WHEN 2 THEN '立减金' WHEN 3 THEN '红包' ELSE '' END AS type")
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} else if f == "pay_type" {
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cols = append(cols, "CASE `order`.pay_type WHEN 1 THEN '支付宝' WHEN 5 THEN '微信' ELSE '' END AS pay_type")
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} else if f == "pay_status" {
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cols = append(cols, "CASE `order`.pay_status WHEN 1 THEN '待支付' WHEN 2 THEN '已支付' WHEN 3 THEN '已退款' ELSE '' END AS pay_status")
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} else {
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cols = append(cols, "`order`."+escape(f))
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}
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} else {
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if t == "order_cash" && f == "receive_status" {
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cols = append(cols, "CASE `order_cash`.receive_status WHEN 0 THEN '待领取' WHEN 1 THEN '领取中' WHEN 2 THEN '领取成功' WHEN 3 THEN '领取失败' ELSE '' END AS receive_status")
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} else if t == "order_cash" && f == "channel" {
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cols = append(cols, "CASE `order_cash`.channel WHEN 1 THEN '支付宝' WHEN 2 THEN '微信' WHEN 3 THEN '云闪付' ELSE '' END AS channel")
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} else if t == "order_voucher" && f == "channel" {
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cols = append(cols, "CASE `order_voucher`.channel WHEN 1 THEN '支付宝' WHEN 2 THEN '微信' ELSE '' END AS channel")
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} else if t == "order_voucher" && f == "status" {
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cols = append(cols, "CASE `order_voucher`.status WHEN 1 THEN '可用' WHEN 2 THEN '已实扣' WHEN 3 THEN '已过期' WHEN 4 THEN '已退款' WHEN 5 THEN '领取失败' WHEN 6 THEN '发放中' WHEN 7 THEN '部分退款' WHEN 8 THEN '已退回' WHEN 9 THEN '发放失败' ELSE '' END AS status")
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} else if t == "order_voucher" && f == "receive_mode" {
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cols = append(cols, "CASE `order_voucher`.receive_mode WHEN 1 THEN '渠道授权用户id' WHEN 2 THEN '手机号或邮箱' ELSE '' END AS receive_mode")
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} else if t == "order_voucher" && f == "out_biz_no" {
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cols = append(cols, "'' AS out_biz_no")
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} else {
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cols = append(cols, "`"+t+"`."+escape(f))
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}
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}
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}
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if len(cols) == 0 {
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return "", nil, errors.New("no fields")
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}
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sb := strings.Builder{}
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sb.WriteString("SELECT ")
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sb.WriteString(strings.Join(cols, ","))
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sb.WriteString(" FROM `" + req.MainTable + "`")
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// JOINs based on need
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// order_detail
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if need["order_detail"] && req.MainTable == "order" {
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sb.WriteString(" LEFT JOIN `order_detail` ON `order_detail`.order_number = `order`.order_number")
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}
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// order_cash
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if need["order_cash"] {
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if req.MainTable == "order_info" {
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sb.WriteString(" LEFT JOIN `order_cash` ON `order_cash`.order_no = `order_info`.order_no")
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} else {
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sb.WriteString(" LEFT JOIN `order_cash` ON `order_cash`.order_number = `order`.order_number")
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}
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}
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// order_voucher
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if need["order_voucher"] {
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if req.MainTable == "order_info" {
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sb.WriteString(" LEFT JOIN `order_voucher` ON `order_voucher`.order_no = `order_info`.order_no")
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} else {
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sb.WriteString(" LEFT JOIN `order_voucher` ON `order_voucher`.order_number = `order`.order_number")
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}
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}
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// plan
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if req.MainTable == "order" {
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if need["plan"] || need["key_batch"] {
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sb.WriteString(" LEFT JOIN `plan` ON `plan`.id = `order`.plan_id")
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}
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if need["key_batch"] {
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sb.WriteString(" LEFT JOIN `key_batch` ON `key_batch`.plan_id = `plan`.id")
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}
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if need["code_batch"] {
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sb.WriteString(" LEFT JOIN `code_batch` ON `code_batch`.key_batch_id = `key_batch`.id")
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}
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if need["voucher"] {
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sb.WriteString(" LEFT JOIN `voucher` ON `voucher`.channel_activity_id = `order_voucher`.channel_activity_id")
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}
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if need["voucher_batch"] {
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sb.WriteString(" LEFT JOIN `voucher_batch` ON `voucher_batch`.voucher_id = `voucher`.id")
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}
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if need["merchant_key_send"] {
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sb.WriteString(" LEFT JOIN `merchant_key_send` ON `order`." + escape("key") + " = `merchant_key_send`.key")
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}
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}
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args := []interface{}{}
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where := []string{}
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// collect need from filters referencing related tables
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if _, ok := req.Filters["order_cash_cash_activity_id_eq"]; ok {
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need["order_cash"] = true
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}
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if _, ok := req.Filters["order_voucher_channel_activity_id_eq"]; ok {
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need["order_voucher"] = true
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}
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if _, ok := req.Filters["voucher_batch_channel_activity_id_eq"]; ok {
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need["voucher_batch"] = true
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need["voucher"] = true
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need["order_voucher"] = true
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}
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if _, ok := req.Filters["merchant_out_biz_no_eq"]; ok {
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need["merchant_key_send"] = true
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}
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if v, ok := req.Filters["creator_in"]; ok {
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ids := []interface{}{}
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switch t := v.(type) {
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case []interface{}:
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ids = t
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case []int:
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for _, x := range t {
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ids = append(ids, x)
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}
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case []string:
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for _, x := range t {
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ids = append(ids, x)
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}
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}
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if len(ids) == 0 {
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return "", nil, errors.New("creator_in required")
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}
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ph := strings.Repeat("?,", len(ids))
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ph = strings.TrimSuffix(ph, ",")
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if req.MainTable == "order_info" {
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where = append(where, "`order_info`.user_id IN ("+ph+")")
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} else {
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where = append(where, "`order`.creator IN ("+ph+")")
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}
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args = append(args, ids...)
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}
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if v, ok := req.Filters["create_time_between"]; ok {
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var arr []interface{}
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b, _ := json.Marshal(v)
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json.Unmarshal(b, &arr)
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if len(arr) != 2 {
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return "", nil, errors.New("create_time_between requires 2 values")
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}
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if req.MainTable == "order_info" {
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where = append(where, "`order_info`.create_time BETWEEN ? AND ?")
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} else {
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where = append(where, "`order`.create_time BETWEEN ? AND ?")
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}
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args = append(args, arr[0], arr[1])
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}
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if v, ok := req.Filters["type_eq"]; ok {
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var tv int
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switch t := v.(type) {
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case float64:
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tv = int(t)
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case int:
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tv = t
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case string:
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// simple digits parsing
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for i := 0; i < len(t); i++ {
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c := t[i]
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if c < '0' || c > '9' {
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continue
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}
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tv = tv*10 + int(c-'0')
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}
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}
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if tv == 1 || tv == 2 || tv == 3 {
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if req.MainTable == "order_info" {
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where = append(where, "`order_info`.type = ?")
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} else {
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where = append(where, "`order`.type = ?")
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}
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args = append(args, tv)
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}
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}
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if v, ok := req.Filters["out_trade_no_eq"]; ok {
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s := toString(v)
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if s != "" {
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if req.MainTable == "order_info" {
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where = append(where, "`order_info`.out_order_no = ?")
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} else {
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where = append(where, "`order`.out_trade_no = ?")
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}
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args = append(args, s)
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}
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}
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if v, ok := req.Filters["account_eq"]; ok {
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s := toString(v)
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if s != "" {
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if req.MainTable == "order_info" {
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where = append(where, "`order_info`.account = ?")
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} else {
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where = append(where, "`order`.account = ?")
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}
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args = append(args, s)
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}
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}
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if v, ok := req.Filters["plan_id_eq"]; ok {
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s := toString(v)
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if s != "" {
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if req.MainTable == "order_info" {
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where = append(where, "`order_info`.activity_id = ?")
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} else {
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where = append(where, "`order`.plan_id = ?")
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}
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args = append(args, s)
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}
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}
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if v, ok := req.Filters["key_batch_id_eq"]; ok {
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s := toString(v)
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if s != "" {
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if req.MainTable == "order_info" {
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where = append(where, "`order_info`.key_batch_name = ?")
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} else {
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where = append(where, "`order`.key_batch_id = ?")
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}
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args = append(args, s)
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}
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}
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if v, ok := req.Filters["product_id_eq"]; ok {
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s := toString(v)
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if s != "" {
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if req.MainTable == "order_info" {
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where = append(where, "`order_info`.goods_id = ?")
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} else {
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where = append(where, "`order`.product_id = ?")
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}
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args = append(args, s)
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}
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}
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if v, ok := req.Filters["reseller_id_eq"]; ok {
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s := toString(v)
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if s != "" {
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if req.MainTable == "order_info" {
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where = append(where, "`order_info`.merchant_id = ?")
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} else {
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where = append(where, "`order`.reseller_id = ?")
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}
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args = append(args, s)
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}
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}
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if v, ok := req.Filters["code_batch_id_eq"]; ok {
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s := toString(v)
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if s != "" {
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if req.MainTable == "order_info" {
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where = append(where, "`order_info`.supplier_product_id = ?")
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} else {
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where = append(where, "`order`.code_batch_id = ?")
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}
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args = append(args, s)
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}
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}
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if v, ok := req.Filters["order_cash_cash_activity_id_eq"]; ok {
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s := toString(v)
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if s != "" {
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if req.MainTable == "order_info" {
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where = append(where, "`order_cash`.activity_id = ?")
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} else {
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where = append(where, "`order_cash`.cash_activity_id = ?")
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}
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args = append(args, s)
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}
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}
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if v, ok := req.Filters["order_voucher_channel_activity_id_eq"]; ok {
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s := toString(v)
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if s != "" {
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if req.MainTable == "order_info" {
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where = append(where, "`order_voucher`.channel_batch_no = ?")
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} else {
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where = append(where, "`order_voucher`.channel_activity_id = ?")
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}
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args = append(args, s)
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}
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}
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if v, ok := req.Filters["voucher_batch_channel_activity_id_eq"]; ok {
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s := toString(v)
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if s != "" {
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if req.MainTable == "order" { // only marketing schema has voucher_batch
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where = append(where, "`voucher_batch`.channel_activity_id = ?")
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args = append(args, s)
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}
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}
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}
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if v, ok := req.Filters["merchant_out_biz_no_eq"]; ok {
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s := toString(v)
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if s != "" {
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if req.MainTable == "order" { // marketing only
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where = append(where, "`merchant_key_send`.out_biz_no = ?")
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}
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args = append(args, s)
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}
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}
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if len(where) > 0 {
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sb.WriteString(" WHERE ")
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sb.WriteString(strings.Join(where, " AND "))
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}
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return sb.String(), args, nil
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}
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func escape(s string) string {
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if s == "key" {
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return "`key`"
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}
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return s
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}
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func toString(v interface{}) string {
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switch t := v.(type) {
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case []byte:
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return string(t)
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case string:
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return t
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case int64:
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return strconv.FormatInt(t, 10)
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case int:
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return strconv.Itoa(t)
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case float64:
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return strconv.FormatFloat(t, 'f', -1, 64)
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default:
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return ""
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}
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}
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