Convert all API handers to use *context.APIContext

modules/context/api.go

@@ -6,12 +6,35 @@ package context
 
 import (
 	"gopkg.in/macaron.v1"
+
+	"github.com/gogits/gogs/modules/base"
+	"github.com/gogits/gogs/modules/log"
 )
 
 type APIContext struct {
 	*Context
 }
 
+// Error responses error message to client with given message.
+// If status is 500, also it prints error to log.
+func (ctx *APIContext) Error(status int, title string, obj interface{}) {
+	var message string
+	if err, ok := obj.(error); ok {
+		message = err.Error()
+	} else {
+		message = obj.(string)
+	}
+
+	if status == 500 {
+		log.Error(4, "%s: %s", title, message)
+	}
+
+	ctx.JSON(status, map[string]string{
+		"message": message,
+		"url":     base.DOC_URL,
+	})
+}
+
 func APIContexter() macaron.Handler {
 	return func(c *Context) {
 		ctx := &APIContext{