bramw_baserow/web-frontend/modules/database/components/field/FieldSelectThroughFieldSubForm.vue

<template>
  <div>
    <Alert v-if="linkRowFieldsInThisTable.length === 0" minimal type="error">
      {{ $t('fieldSelectThroughFieldSubForm.noTable') }}
    </Alert>
    <div v-if="linkRowFieldsInThisTable.length > 0" class="control">
      <label class="control__label control__label--small">
        {{ $t('fieldSelectThroughFieldSubForm.selectThroughFieldLabel') }}
      </label>
      <div class="control__elements">
        <FixedItemsDropdown
          v-model="values.through_field_id"
          :class="{ 'dropdown--error': $v.values.through_field_id.$error }"
          @hide="$v.values.through_field_id.$touch()"
          @input="throughFieldChanged($event)"
        >
          <DropdownItem
            v-for="field in linkRowFieldsInThisTable"
            :key="field.id"
            :disabled="field.disabled"
            :name="field.name"
            :value="field.id"
            :icon="field.icon"
          ></DropdownItem>
        </FixedItemsDropdown>
        <div v-if="$v.values.through_field_id.$error" class="error">
          {{ $t('error.requiredField') }}
        </div>
      </div>
    </div>
  </div>
</template>

<script>
import { required } from 'vuelidate/lib/validators'

import form from '@baserow/modules/core/mixins/form'
import { LinkRowFieldType } from '@baserow/modules/database/fieldTypes'
import { DatabaseApplicationType } from '@baserow/modules/database/applicationTypes'
import FixedItemsDropdown from '@baserow/modules/core/components/FixedItemsDropdown'

export default {
  name: 'FieldSelectThroughFieldSubForm',
  components: { FixedItemsDropdown },
  mixins: [form],
  props: {
    database: {
      type: Object,
      required: true,
    },
    fields: {
      type: Array,
      required: true,
    },
  },
  data() {
    return {
      allowedValues: ['through_field_id'],
      values: {
        through_field_id: null,
      },
    }
  },
  computed: {
    linkRowFieldsInThisTable() {
      return this.fields
        .filter((f) => f.type === LinkRowFieldType.getType())
        .map((f) => {
          const fieldType = this.$registry.get('field', f.type)
          f.icon = fieldType.getIconClass()
          f.disabled = !this.tableIdsAccessible.includes(f.link_row_table_id)
          return f
        })
    },
    allTables() {
      const databaseType = DatabaseApplicationType.getType()
      return this.$store.getters['application/getAll'].reduce(
        (tables, application) => {
          if (application.type === databaseType) {
            const tablesWithCreateFieldAccess = (
              application.tables || []
            ).filter((table) =>
              this.$hasPermission(
                'database.table.create_field',
                table,
                this.database.workspace.id
              )
            )
            return tables.concat(tablesWithCreateFieldAccess)
          }
          return tables
        },
        []
      )
    },
    tableIdsAccessible() {
      return this.allTables.map((table) => table.id)
    },
  },
  watch: {
    'defaultValues.through_field_id'(value) {
      this.throughFieldChanged(value)
    },
  },
  created() {
    this.throughFieldChanged(this.defaultValues.through_field_id)
  },
  validations: {
    values: {
      through_field_id: { required },
    },
  },
  methods: {
    isFormValid() {
      return (
        form.methods.isFormValid.call(this) &&
        this.linkRowFieldsInThisTable.length > 0
      )
    },
    throughFieldChanged(fieldId) {
      const field = this.linkRowFieldsInThisTable.find((f) => f.id === fieldId)
      this.$emit('input', field)
    },
  },
}
</script>