Add option for admins to create new courses

components/AddCourse.vue

@@ -0,0 +1,123 @@
+<template>
+  <v-dialog v-model="show" max-width="500" persistent>
+    <template #activator="{ on, attrs }">
+      <v-card flat width="100%" class="rounded-lg" v-bind="attrs" v-on="on">
+        <v-card-text class="text-h6">
+          <v-icon left x-large>mdi-plus</v-icon>
+          Kurs hinzufügen
+        </v-card-text>
+      </v-card>
+    </template>
+    <ValidationObserver ref="addCourseObserver" v-slot="{ invalid }">
+      <form @submit.prevent="addCourse">
+        <v-card>
+          <v-card-title>Neuer Kurs</v-card-title>
+          <v-card-text>
+            <ValidationProvider v-slot="{ errors }" name="courseID" rules="required">
+              <v-text-field
+                v-model="id"
+                required
+                label="ID"
+                persistent-placeholder
+                placeholder="ISEF01"
+                :error-messages="errors"
+              ></v-text-field>
+            </ValidationProvider>
+            <ValidationProvider v-slot="{ errors }" name="course" rules="required">
+              <v-text-field
+                v-model="title"
+                required
+                label="Bezeichnung"
+                persistent-placeholder
+                placeholder="Projekt Software Engineering"
+                :error-messages="errors"
+              ></v-text-field>
+            </ValidationProvider>
+            <ValidationProvider v-slot="{ errors }" name="tutor" rules="required|email">
+              <v-text-field
+                v-model="tutor"
+                required
+                label="Tutor E-Mail"
+                persistent-placeholder
+                placeholder="john.johnson@iu.org"
+                :error-messages="errors"
+              ></v-text-field>
+            </ValidationProvider>
+          </v-card-text>
+          <v-divider></v-divider>
+          <v-card-actions>
+            <v-spacer></v-spacer>
+            <v-btn text color="primary" @click="close">Abbrechen</v-btn>
+            <v-btn type="submit" depressed color="primary" :loading="loading" :disabled="invalid">Hinzufügen</v-btn>
+          </v-card-actions>
+        </v-card>
+      </form>
+    </ValidationObserver>
+  </v-dialog>
+</template>
+
+<script>
+import { doc, setDoc } from 'firebase/firestore'
+// We use vee-validate@3 for form validation.
+// https://vee-validate.logaretm.com/v3/guide/basics.html
+import { ValidationProvider, ValidationObserver, extend } from 'vee-validate'
+import { required, email } from 'vee-validate/dist/rules'
+
+// Override the default error message of required fields
+extend('required', {
+  ...required,
+  message: 'Pflichtfeld'
+})
+
+extend('email', {
+  ...email,
+  message: 'Keine gültige E-Mail-Adresse'
+})
+
+export default {
+  name: 'AddCourseDialog',
+  components: {
+    ValidationProvider,
+    ValidationObserver
+  },
+  data () {
+    return {
+      show: false,
+      loading: false,
+      id: '',
+      title: '',
+      tutor: ''
+    }
+  },
+  methods: {
+    addCourse () {
+      this.loading = true
+      const courseID = this.id.toLowerCase().trim()
+      const courseName = this.title.trim()
+      const tutorEmail = this.tutor.toLowerCase().trim()
+      const c = { name: courseName, tutor: tutorEmail }
+
+      // Add a new document
+      setDoc(doc(this.$db, `kurse/${courseID}`), c)
+      .then((docRef) => {
+        // Successfully added a new course to the database.
+        this.$store.commit('setCourse', { courseID, courseData: c })
+        this.$toast({content: `Der Kurs "${courseID.toUpperCase()} - ${courseName}" wurde hinzugefügt!`, color: 'success'})
+        this.close()
+      })
+      .catch((error) => {
+        // Failed to add a new course to the database; display error message
+        this.$toast({content: error, color: 'error'})
+      })
+      .then(() => { this.loading = false })
+    },
+    close () {
+      this.id = ''
+      this.title = ''
+      this.tutor = ''
+      this.show = false
+      this.$refs.addCourseObserver.reset()
+    }
+  }
+}
+</script>