支持单图查询

api/graphql.go

@@ -629,6 +629,22 @@ func NewSchema(config Config) (graphql.Schema, error) {
 				}, nil
 			},
 		},
+		"image": &graphql.Field{
+			Name:        "image",
+			Description: "单张图片",
+			Type:        image,
+			Args: graphql.FieldConfigArgument{
+				"id": &graphql.ArgumentConfig{Type: graphql.Int, Description: "根据ID获取图片"},
+			},
+			Resolve: func(p graphql.ResolveParams) (interface{}, error) {
+				img := Image{ID: p.Args["id"].(int)}
+				if err := db.First(&img).Error; err != nil {
+					log.Println("获取图片失败", err)
+					return nil, err
+				}
+				return img, nil
+			},
+		},
 	}})})
 	if err != nil {
 		return schema, err