Merge pull request #77 from TimothyYe/master

Fix issue #46

Author: dinever

app/handler/auth.go

@@ -1,18 +1,22 @@
 package handler
 
 import (
-	"github.com/dinever/golf"
-	"github.com/dingoblog/dingo/app/model"
 	"regexp"
 	"strconv"
+
+	"github.com/dinever/golf"
+	"github.com/dingoblog/dingo/app/model"
 )
 
 const Email string = "^(((([a-zA-Z]|\\d|[!#\\$%&'\\*\\+\\-\\/=\\?\\^_`{\\|}~]|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])+(\\.([a-zA-Z]|\\d|[!#\\$%&'\\*\\+\\-\\/=\\?\\^_`{\\|}~]|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])+)*)|((\\x22)((((\\x20|\\x09)*(\\x0d\\x0a))?(\\x20|\\x09)+)?(([\\x01-\\x08\\x0b\\x0c\\x0e-\\x1f\\x7f]|\\x21|[\\x23-\\x5b]|[\\x5d-\\x7e]|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])|(\\([\\x01-\\x09\\x0b\\x0c\\x0d-\\x7f]|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}]))))*(((\\x20|\\x09)*(\\x0d\\x0a))?(\\x20|\\x09)+)?(\\x22)))@((([a-zA-Z]|\\d|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])|(([a-zA-Z]|\\d|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])([a-zA-Z]|\\d|-|\\.|_|~|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])*([a-zA-Z]|\\d|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])))\\.)+(([a-zA-Z]|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])|(([a-zA-Z]|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])([a-zA-Z]|\\d|-|\\.|_|~|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])*([a-zA-Z]|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])))\\.?$"
 
 var rxEmail = regexp.MustCompile(Email)
 
 func AuthLoginPageHandler(ctx *golf.Context) {
-	ctx.Loader("admin").Render("login.html")
+	userNum, _ := model.GetNumberOfUsers()
+	ctx.Loader("admin").Render("login.html", map[string]interface{}{
+		"UserExists": userNum > 0,
+	})
 }
 
 func AuthSignUpPageHandler(ctx *golf.Context) {

view/admin/login.html

@@ -42,9 +42,11 @@ <h2 class="mdl-card__title-text">
                 <button type="submit" class="mdl-button mdl-js-button mdl-button--raised mdl-button--colored mdl-js-ripple-effect mdl-color--light-blue">
                   Login
                 </button>
+								{{ if not .UserExists }}
                 <a href="/signup" class="mdl-button mdl-js-button mdl-js-ripple-effect">
                   Sign up
                 </a>
+								{{ end }}
               </div>
 
             </form>