Unspecified error encountered in the VUE selection view

I am facing an issue with the undefined value in the select view while attempting to add a new project. Could you suggest a solution? I tried using v-if but it didn't work for me.

This is how my code looks:

<v-select
            v-model="project.kierownik_id"
            :items="formattedUsers"
            :item-props="itemProps"
            item-text="_id"
            item-value="_id"
            label="kierownik:"
            track-by="project.kierownik_id"
></v-select>

addProject() {
    console.log(' (before let paylod) Adding project:', this.project);
    let payload = { ...this.project, kierownik_id: this.project.kierownik_id, };
    axios
      .post('/project', payload)
      .then((res) => {
        console.log('Adding project:', this.project);
        this.$emit('hideEditProject', res.data);
      })
      .catch((err) => {
        this.error.message = err.response.data.message + ': ' + err.response.data.error;
        this.error.show = true;
      });
  },

data() {
  return {
    project: {
      kierownik_id: null,
    },
    dataCorrect: true,
    users: {},
    error: { show: false, message: '' },
    confirmDelete: false
  }
},

I would like to eliminate the undefined value in the select view when adding a new project. Image

Answer №1

TEST THIS OUT

<template>
  <div>
    <v-select
      v-if="project.manager_id !== null"
      v-model="project.manager_id"
      :items="formattedUsers"
      :item-props="itemProps"
      item-text="_id"
      item-value="_id"
      label="manager:"
      track-by="project.manager_id"
    ></v-select>
  </div>
</template>

<script>
import { ref, watch } from 'vue';

export default {
  setup() {
    const project = ref({
      // ...other project properties
      manager_id: null, // Provide a default value, like null
    });

    // Set up other data properties such as formattedUsers, itemProps, etc.

    // Monitor changes to project.manager_id and handle them accordingly
    watch(project.manager_id, (newValue, oldValue) => {
      // Respond to the change - save it in project or perform additional actions
    });

    return {
      project,
      // Expose any additional data properties to the template
    };
  },
};
</script>

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