11.12.2018

helpers/random.go

@@ -0,0 +1,12 @@
+package helpers
+
+import (
+	"crypto/rand"
+	"fmt"
+)
+
+func GenerateId() string {
+	b := make([]byte, 8)
+	rand.Read(b)
+	return fmt.Sprintf("%x", b)
+}

main.go

@@ -5,7 +5,8 @@ import (
 	"html/template"
 	"net/http"
 
-	"github.com/blog/models"
+	"git.wmi.amu.edu.pl/s439508/Pracownia.Programowania/helpers"
+	"git.wmi.amu.edu.pl/s439508/Pracownia.Programowania/models"
 )
 
 var posts map[string]*models.Post
@@ -16,11 +17,12 @@ func index(w http.ResponseWriter, r *http.Request) {
 		"views/write.html",
 		"views/header.html",
 		"views/footer.html",
+		"views/index.html",
 	)
 	if err != nil {
 		fmt.Fprintf(w, err.Error())
 	}
-	t.ExecuteTemplate(w, "write", nil)
+	t.ExecuteTemplate(w, "index", posts)
 }
 
 func write(w http.ResponseWriter, r *http.Request) {
@@ -28,11 +30,30 @@ func write(w http.ResponseWriter, r *http.Request) {
 		"views/index.html",
 		"views/header.html",
 		"views/footer.html",
+		"views/write.html",
 	)
 	if err != nil {
 		fmt.Fprintf(w, err.Error())
 	}
-	t.ExecuteTemplate(w, "index", nil)
+	t.ExecuteTemplate(w, "write", nil)
+}
+
+func edit(w http.ResponseWriter, r *http.Request) {
+	t, err := template.ParseFiles(
+		"views/index.html",
+		"views/header.html",
+		"views/footer.html",
+		"views/write.html",
+	)
+	if err != nil {
+		fmt.Fprintf(w, err.Error())
+	}
+	id := r.FormValue("id")
+	post, found := posts[id]
+	if !found {
+		http.NotFound(w, r)
+	}
+	t.ExecuteTemplate(w, "write", post)
 }
 
 func savePost(w http.ResponseWriter, r *http.Request) {
@@ -40,8 +61,27 @@ func savePost(w http.ResponseWriter, r *http.Request) {
 	title := r.FormValue("title")
 	content := r.FormValue("content")
 
-	post := models.NewPost(id, title, content)
-	post[post.Id] = post
+	var post *models.Post
+	if id != "" {
+		post = posts[id]
+		post.Title = title
+		post.Content = content
+	} else {
+		post := models.NewPost(helpers.GenerateId(), title, content)
+		posts[post.Id] = post
+	}
+
+	http.Redirect(w, r, "/", 302)
+}
+
+func deletePost(w http.ResponseWriter, r *http.Request) {
+	id := r.FormValue("id")
+	if id == "" {
+		http.NotFound(w, r)
+	}
+
+	delete(posts, id)
+
 	http.Redirect(w, r, "/", 302)
 }
 
@@ -52,7 +92,9 @@ func main() {
 	http.Handle("/bower_components/", http.StripPrefix("/bower_components/", http.FileServer(http.Dir("./bower_components/"))))
 	http.HandleFunc("/", index)
 	http.HandleFunc("/write", write)
+	http.HandleFunc("/edit", edit)
 	http.HandleFunc("/savePost", savePost)
+	http.HandleFunc("/deletePost", deletePost)
 
 	http.ListenAndServe(":8080", nil)
 }

models/post.go

@@ -1,6 +1,6 @@
 package models
 
-type Psot struct {
+type Post struct {
 	Id      string
 	Title   string
 	Content string

views/index.html

@@ -2,17 +2,25 @@
 
 {{ template "header" }}
 
+{{ range $key, $value := . }}
+
 <div class="row">
     <div class="col-xs-2"></div>
-    <div class="col-xs-2"></div>
+    <div class="col-xs-8">
+        <h1><a href ="/edit?id={{$value.Id}}">{{ $value.Title }}</a></h1>
+    </div>
     <div class="col-xs-2"></div>
 </div>
 
 <div class="row">
         <div class="col-xs-2"></div>
+        <div class="col-xs-8">
+            {{ $value.Content }}
+        </div>
+
         <div class="col-xs-2"></div>
-        <div class="col-xs-2"></div>
-    </div>
+</div>
+{{end}}
 
 
 {{ template "footer" }}

views/write.html

@@ -5,20 +5,22 @@
     <div class="col-xs-4"></div>
     <div class="col-xs-4">
         <form action="/savePost" method="POST" role="form">
-            <input type="hidden" name="id"/>
+            <input type="hidden" name="id" value="{{.Id}}"/>
             <div class="form-group">
                 <label for="title">Tytul</label>
-                <input type="text" class="form-control" id="title" name="title"/>
+                <input type="text" class="form-control" id="title" name="title" value ="{{.Title}}"/>
             </div>
             <div class="form-group">
                 <label for="content">Content</label>
-                <textarea name="content" id="content"></textarea>
+                <textarea name="content" id="content">{{.Content}}</textarea>
             </div>
         <button type="submit" class="btn btn-default">Submit</button>
         </form>
     </div>
     <div class="col-xs-4">
-        <a href="deletePost">Usun</a>
+        {{ if.Id }}
+        <a href="deletePost?id={{.Id}}">Delete</a>
+        {{ end }}
     </div>
 </div>