ask payment info now contains rpn type.

purchase.go

 import (
 	"fmt"
 	"net/http"
-	"os"
-	"text/template"
 )
 
 func StartPay(w http.ResponseWriter, r *http.Request) {
 	tmpl.ExecuteTemplate(w, "StartPay", row)
 }
 
-func askForPaymentInfo(w http.ResponseWriter, r *http.Request) {
-	t := template.Must(template.New("askForPaymentInfo").ParseGlob("form/*.tmpl"))
-	t.ExecuteTemplate(os.Stdout, "rpnAskNameAndCard", r.Form)
-	t.ExecuteTemplate(w, "rpnAskNameAndCard", r.Form)
+func askForPaymentInfo(w http.ResponseWriter, row LeanworkRequest, rpn_type string) {
+	var data struct {
+		Id      int64
+		Sign    string
+		RpnType string
+	}
+	data.Id = row.Id
+	data.Sign = row.Sign
+	data.RpnType = rpn_type
+	tmpl.ExecuteTemplate(w, "rpnAskNameAndCard", data)
+}
+
+func choosePayment(w http.ResponseWriter, r *http.Request) {
+	//get inform from form .
+	r.ParseForm()
+	id := r.FormValue("id")
+	sign := r.FormValue("sign")
+	rpn_type := r.FormValue("rpnType")
+
+	if id == "" || sign == "" {
+		w.WriteHeader(http.StatusMethodNotAllowed)
+		fmt.Fprintf(w, "invalid parameters")
+		return
+	}
+
+	row, err := getRequestRowByIdAndSign(id, sign)
+
+	if err != nil {
+		w.WriteHeader(http.StatusBadRequest)
+		fmt.Fprintf(w, "invalid signature")
+		return
+	}
+	//show redirect, and start payment
+	askForPaymentInfo(w, row, rpn_type)
 }