Aufladen

http.go

@@ -3,6 +3,7 @@ package main
 import (
 	"bytes"
 	"net/http"
+	"strconv"
 
 	"github.com/gorilla/mux"
 )
@@ -203,6 +204,60 @@ func (k *Kasse) GetLogout(res http.ResponseWriter, req *http.Request) {
 	}
 }
 
+func (k *Kasse) GetAddBalancePage(res http.ResponseWriter, req *http.Request) {
+	session, err := k.sessions.Get(req, "nnev-kasse")
+	if err != nil {
+		http.Redirect(res, req, "/login.html", 302)
+		return
+	}
+	ui, ok := session.Values["user"]
+	if !ok {
+		http.Redirect(res, req, "/login.html", 302)
+		return
+	}
+	user := ui.(User)
+
+	data := struct {
+		User User
+	}{
+		User: user,
+	}
+
+	res.Header().Set("Content-Type", "text/html")
+
+	if err := ExecuteTemplate(res, TemplateInput{Title: "Add Balance", Body: "addBalance.html", Data: data}); err != nil {
+		k.log.Println("Could not render template:", err)
+		http.Error(res, "Internal error", http.StatusInternalServerError)
+		return
+	}
+}
+
+func (k *Kasse) PostAddBalance(res http.ResponseWriter, req *http.Request) {
+	deposit, err := strconv.ParseInt(req.FormValue("deposit"), 10, 64)
+
+	session, err := k.sessions.Get(req, "nnev-kasse")
+	if err != nil {
+		http.Redirect(res, req, "/login.html", 302)
+		return
+	}
+	ui, ok := session.Values["user"]
+	if !ok {
+		http.Redirect(res, req, "/login.html", 302)
+		return
+	}
+	user := ui.(User)
+
+	err = k.AddBalance(user, deposit)
+	if err != nil {
+		k.log.Println("Could not deposit money:", err)
+		http.Error(res, "Internal error", http.StatusInternalServerError)
+		return
+	}
+
+	http.Redirect(res, req, "/", 302)
+
+}
+
 // Handler returns a http.Handler for the webinterface.
 func (k *Kasse) Handler() http.Handler {
 	r := mux.NewRouter()
@@ -213,5 +268,7 @@ func (k *Kasse) Handler() http.Handler {
 	r.Methods("GET").Path("/logout.html").HandlerFunc(k.GetLogout)
 	r.Methods("GET").Path("/create_user.html").HandlerFunc(k.GetNewUserPage)
 	r.Methods("POST").Path("/create_user.html").HandlerFunc(k.PostNewUserPage)
+	r.Methods("GET").Path("/addBalance.html").HandlerFunc(k.GetAddBalancePage)
+	r.Methods("POST").Path("/addBalance.html").HandlerFunc(k.PostAddBalance)
 	return r
 }

main.go

@@ -366,6 +366,25 @@ func (k *Kasse) GetBalance(user User) (int64, error) {
 	return b.Int64, nil
 }
 
+func (k *Kasse) AddBalance(user User, deposit int64) error {
+	k.log.Printf("Adding balance %d for owner %s", deposit, user.Name)
+
+	tx, err := k.db.Beginx()
+	if err != nil {
+		return err
+	}
+	defer tx.Rollback()
+
+	if _, err := tx.Exec(`INSERT INTO transactions (user_id, card_id, time, amount, kind) VALUES ($1, NULL, $3, $4, $5)`, user.ID, time.Now(), deposit*100, "Aufladung"); err != nil {
+		return err
+	}
+
+	if err := tx.Commit(); err != nil {
+		return err
+	}
+	return nil
+}
+
 // GetTransactions gets the last n transactions for a given user. If n ≤ 0, all
 // transactions are returnsed.
 func (k *Kasse) GetTransactions(user User, n int) ([]Transaction, error) {

templates/addBalance.html

@@ -0,0 +1,36 @@
+<style>
+.mdl-card__actions {
+  display: flex;
+  align-items: center;
+}
+</style>
+
+<div class="mdl-grid">
+  <div class="mdl-cell mdl-cell--4-col mdl-cell--4-offset">
+    <div class="mdl-card mdl-shadow--2dp" id="add-card-box">
+      <div class="mdl-card__title">
+        <h2 class="mdl-card__title-text">Adding Balance for {{ .User.Name }}</h2>
+      </div>
+      <div class="mdl-card__supporting-text">
+        Wie viel Geld (in Euro) möchtest du einzahlen?
+      </div>
+      <div class="mdl-card__supporting-text">
+        <form method="POST">
+          <div class="mdl-textfield mdl-js-textfield">
+            <input class="mdl-textfield__input" type="text"
+            pattern="-?[0-9]*(\.[0-9]+)?" name="deposit" />
+            <label class="mdl-textfield__label" for="deposit">Guthaben</label>
+          </div>
+          <div class="mdl-card__actions">
+            <div class="mdl-layout-spacer"></div>
+            <button class="mdl-button mdl-button--colored mdl-js-button
+            mdl-js-ripple-effect" type="submit">
+              Aufladen
+            </button>
+            </div>
+          </div>
+        </form>
+      </div>
+    </div>
+  </div>
+</div>

templates/dashboard.html

@@ -9,9 +9,11 @@ <h2 class="mdl-card__title-text">{{ .User.Name }}</h2>
         <div>{{ .Balance }}€</div>
 	  </div>
 	  <div class="mdl-card__actions mdl-card--border">
+      <a href="/addBalance.html">
         <button class="mdl-button mdl-button--accent mdl-jso-button mdl-js-ripple-effect">
           Aufladen
         </button>
+      </a>
 	  </div>
 	</div>
   </div>
@@ -73,7 +75,7 @@ <h2 class="mdl-card__title-text">Letzte Transaktionen</h2>
 		  <tbody>
             {{ range .Transactions }}
 			<tr>
-				<td class="mdl-data-table__cell--non-numeric">{{ printf "%x" .Card }}</td>
+        <td class="mdl-data-table__cell--non-numeric">{{if .Card}} {{ printf "%x" .Card }} {{else}} {{`Aufladung`}} {{end}}</td>
 				<td class="mdl-data-table__cell--non-numeric"><time>{{ .Time.Format "2006-01-02 15:04" }}</time></td>
 				<td class="mdl-data-table__cell--non-numeric">{{ toEuros .Amount }}€</td>
 			</tr>