admin: Show what properties will be overwritted

admin/api/exercice.go

@@ -4,6 +4,7 @@ import (
 	"fmt"
 	"log"
 	"net/http"
+	"reflect"
 	"strconv"
 	"strings"
 	"time"
@@ -528,62 +529,36 @@ func updateExercice(c *gin.Context) {
 	c.JSON(http.StatusOK, ue)
 }
 
+type patchExercice struct {
+	Language    *string  `json:"lang,omitempty"`
+	Title       *string  `json:"title"`
+	Disabled    *bool    `json:"disabled"`
+	WIP         *bool    `json:"wip"`
+	URLId       *string  `json:"urlid"`
+	Statement   *string  `json:"statement"`
+	Overview    *string  `json:"overview"`
+	Headline    *string  `json:"headline"`
+	Finished    *string  `json:"finished"`
+	Issue       *string  `json:"issue"`
+	IssueKind   *string  `json:"issuekind"`
+	Gain        *int64   `json:"gain"`
+	Coefficient *float64 `json:"coefficient"`
+}
+
 func partUpdateExercice(c *gin.Context) {
 	exercice := c.MustGet("exercice").(*fic.Exercice)
 
-	var ue fic.Exercice
+	var ue patchExercice
 	err := c.ShouldBindJSON(&ue)
 	if err != nil {
 		c.AbortWithStatusJSON(http.StatusBadRequest, gin.H{"errmsg": err.Error()})
 		return
 	}
 
-	if len(ue.Title) > 0 {
-		exercice.Title = ue.Title
-	}
-
-	if len(ue.URLId) > 0 {
-		exercice.URLId = ue.URLId
-	}
-
-	if len(ue.Statement) > 0 {
-		exercice.Statement = ue.Statement
-	}
-
-	if len(ue.Headline) > 0 {
-		exercice.Headline = ue.Headline
-	}
-
-	if len(ue.Finished) > 0 {
-		exercice.Finished = ue.Finished
-	}
-
-	if len(ue.Overview) > 0 {
-		exercice.Overview = ue.Overview
-	}
-
-	if len(ue.Issue) > 0 {
-		exercice.Issue = ue.Issue
-	}
-
-	if len(ue.IssueKind) > 0 {
-		exercice.IssueKind = ue.IssueKind
-	}
-
-	if ue.Depend != nil {
-		exercice.Depend = ue.Depend
-	}
-
-	if ue.Gain != 0 {
-		exercice.Gain = ue.Gain
-	}
-
-	if ue.Coefficient != 0 {
-		exercice.Coefficient = ue.Coefficient
-	}
-
-	if len(ue.VideoURI) > 0 {
-		exercice.VideoURI = ue.VideoURI
+	for _, field := range reflect.VisibleFields(reflect.TypeOf(ue)) {
+		if !reflect.ValueOf(ue).FieldByName(field.Name).IsNil() {
+			reflect.ValueOf(exercice).Elem().FieldByName(field.Name).Set(reflect.ValueOf(reflect.ValueOf(ue).FieldByName(field.Name).Elem().Interface()))
+		}
 	}
 
 	if _, err := exercice.Update(); err != nil {