Combine error templates.

Makefile

@@ -21,4 +21,5 @@ up:
 
 .PHONY: run
 run:
+	clear
 	go run main.go

controllers/error.go

@@ -1,7 +1,6 @@
 package controllers
 
 import (
-	"fmt"
 	"net/http"
 
 	"github.com/labstack/echo/v4"
@@ -26,8 +25,7 @@ func (e *Error) Get(err error, c echo.Context) {
 	p := NewPage(c)
 	p.Layout = "main"
 	p.Title = http.StatusText(code)
-	// TODO: fallback if there is no error template
-	p.Name = fmt.Sprintf("errors/%d", code)
+	p.Name = "error"
 	p.StatusCode = code
 
 	if err = e.RenderPage(c, p); err != nil {

controllers/page.go

@@ -41,6 +41,7 @@ type Page struct {
 		MaxAge  time.Duration
 		Tags    []string
 	}
+	RequestID string
 }
 
 func NewPage(c echo.Context) Page {
@@ -51,6 +52,7 @@ func NewPage(c echo.Context) Page {
 		StatusCode: http.StatusOK,
 		Pager:      pager.NewPager(c, DefaultItemsPerPage),
 		Headers:    make(map[string]string),
+		RequestID:  c.Response().Header().Get(echo.HeaderXRequestID),
 	}
 
 	p.IsHome = p.Path == "/"

views/pages/error.gohtml

@@ -0,0 +1,11 @@
+{{define "content"}}
+    {{if gt .StatusCode 500}}
+        <p>Please try again. Request ID: {{.RequestID}}</p>
+    {{else if  or (eq .StatusCode 403) (eq .StatusCode 401)}}
+        <p>You are not authorized to view the requested page.</p>
+    {{else if eq .StatusCode 404}}
+        <p>Click {{link (call .Reverse "home") "here" .Path}} to return home</p>
+    {{else}}
+        <p>Something went wrong</p>
+    {{end}}
+{{end}}

views/pages/errors/404.gohtml

@@ -1,3 +0,0 @@
-{{define "content"}}
-    <p>Click {{link (call .Reverse "home") "here" .Path}} to return home</p>
-{{end}}

views/pages/errors/500.gohtml

@@ -1,3 +0,0 @@
-{{define "content"}}
-    <p>Please try again</p>
-{{end}}

views/pages/register.gohtml

@@ -1,15 +1,15 @@
 {{define "content"}}
     <form method="post">
         <div class="field">
-            <label for="" class="label">Username</label>
+            <label for="username" class="label">Username</label>
             <div class="control">
-                <input type="textfield" name="username" class="input" value="{{.Data.Username}}" required>
+                <input type="text" id="username" name="username" class="input" value="{{.Data.Username}}" required>
             </div>
         </div>
         <div class="field">
-            <label for="" class="label">Password</label>
+            <label for="password" class="label">Password</label>
             <div class="control">
-                <input type="password" name="password" placeholder="*******" class="input" required>
+                <input type="password" id="password" name="password" placeholder="*******" class="input" required>
             </div>
         </div>
         <div class="field is-grouped">