bootstrap-vue/esm/components/form-select/helpers/mixin-options.js

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import get from '../../../utils/get';
import { isNull, isPlainObject, isUndefined } from '../../../utils/inspect';
import formOptionsMixin from '../../../mixins/form-options'; // @vue/component

export default {
  mixins: [formOptionsMixin],
  props: {
    labelField: {
      type: String,
      default: 'label'
    },
    optionsField: {
      type: String,
      default: 'options'
    }
  },
  methods: {
    normalizeOption: function normalizeOption(option) {
      var key = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : null;

      // When the option is an object, normalize it
      if (isPlainObject(option)) {
        var value = get(option, this.valueField);
        var text = get(option, this.textField);
        var options = get(option, this.optionsField, null); // When it has options, create an `<optgroup>` object

        if (!isNull(options)) {
          return {
            label: String(get(option, this.labelField) || text),
            options: this.normalizeOptions(options)
          };
        } // Otherwise create an `<option>` object


        return {
          value: isUndefined(value) ? key || text : value,
          text: String(isUndefined(text) ? key : text),
          html: get(option, this.htmlField),
          disabled: Boolean(get(option, this.disabledField))
        };
      } // Otherwise create an `<option>` object from the given value


      return {
        value: key || option,
        text: String(option),
        disabled: false
      };
    }
  }
};