bootstrap-vue/esm/components/table/helpers/normalize-fields.js

BootstrapVue, with over 40 plugins and more than 75 custom components, provides one of the most comprehensive implementations of Bootstrap v4 components and grid system for Vue.js. With extensive and automated WAI-ARIA accessibility markup.

function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; var ownKeys = Object.keys(source); if (typeof Object.getOwnPropertySymbols === 'function') { ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function (sym) { return Object.getOwnPropertyDescriptor(source, sym).enumerable; })); } ownKeys.forEach(function (key) { _defineProperty(target, key, source[key]); }); } return target; }

function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }

import startCase from '../../../utils/startcase';
import { isArray, isFunction, isObject, isString } from '../../../utils/inspect';
import { keys } from '../../../utils/object';
import { IGNORED_FIELD_KEYS } from './constants'; // Private function to massage field entry into common object format

var processField = function processField(key, value) {
  var field = null;

  if (isString(value)) {
    // Label shortcut
    field = {
      key: key,
      label: value
    };
  } else if (isFunction(value)) {
    // Formatter shortcut
    field = {
      key: key,
      formatter: value
    };
  } else if (isObject(value)) {
    field = _objectSpread({}, value);
    field.key = field.key || key;
  } else if (value !== false) {
    // Fallback to just key

    /* istanbul ignore next */
    field = {
      key: key
    };
  }

  return field;
}; // We normalize fields into an array of objects
// [ { key:..., label:..., ...}, {...}, ..., {..}]


var normalizeFields = function normalizeFields(origFields, items) {
  var fields = [];

  if (isArray(origFields)) {
    // Normalize array Form
    origFields.filter(function (f) {
      return f;
    }).forEach(function (f) {
      if (isString(f)) {
        fields.push({
          key: f,
          label: startCase(f)
        });
      } else if (isObject(f) && f.key && isString(f.key)) {
        // Full object definition. We use assign so that we don't mutate the original
        fields.push(_objectSpread({}, f));
      } else if (isObject(f) && keys(f).length === 1) {
        // Shortcut object (i.e. { 'foo_bar': 'This is Foo Bar' }
        var key = keys(f)[0];
        var field = processField(key, f[key]);

        if (field) {
          fields.push(field);
        }
      }
    });
  } else if (origFields && isObject(origFields) && keys(origFields).length > 0) {
    // Normalize object Form (deprecated)
    keys(origFields).forEach(function (key) {
      var field = processField(key, origFields[key]);

      if (field) {
        fields.push(field);
      }
    });
  } // If no field provided, take a sample from first record (if exits)


  if (fields.length === 0 && isArray(items) && items.length > 0) {
    var sample = items[0];
    keys(sample).forEach(function (k) {
      if (!IGNORED_FIELD_KEYS[k]) {
        fields.push({
          key: k,
          label: startCase(k)
        });
      }
    });
  } // Ensure we have a unique array of fields and that they have String labels


  var memo = {};
  return fields.filter(function (f) {
    if (!memo[f.key]) {
      memo[f.key] = true;
      f.label = isString(f.label) ? f.label : startCase(f.key);
      return true;
    }

    return false;
  });
};

export default normalizeFields;