refine multiselect

packages/react-bootstrap-table2-filter/src/components/multiselect.js

@@ -1,5 +1,6 @@
 /* eslint react/require-default-props: 0 */
 /* eslint no-return-assign: 0 */
+/* eslint no-param-reassign: 0 */
 /* eslint react/no-unused-prop-types: 0 */
 import React, { Component } from 'react';
 import PropTypes from 'prop-types';
@@ -24,25 +25,24 @@ class MultiSelectFilter extends Component {
   constructor(props) {
     super(props);
     this.filter = this.filter.bind(this);
+    this.applyFilter = this.applyFilter.bind(this);
     const isSelected = props.defaultValue.map(item => props.options[item]).length > 0;
     this.state = { isSelected };
   }
 
   componentDidMount() {
-    const { column, onFilter, getFilter } = this.props;
+    const { getFilter } = this.props;
 
     const value = getSelections(this.selectInput);
     if (value && value.length > 0) {
-      onFilter(column, FILTER_TYPE.MULTISELECT)(value);
+      this.applyFilter(value);
     }
 
     // export onFilter function to allow users to access
     if (getFilter) {
       getFilter((filterVal) => {
-        this.setState(() => ({ isSelected: filterVal.length > 0 }));
         this.selectInput.value = filterVal;
-
-        onFilter(column, FILTER_TYPE.MULTISELECT)(filterVal);
+        this.applyFilter(filterVal);
       });
     }
   }
@@ -55,10 +55,7 @@ class MultiSelectFilter extends Component {
       needFilter = true;
     }
     if (needFilter) {
-      const value = this.selectInput.value;
-      if (value) {
-        this.props.onFilter(this.props.column, FILTER_TYPE.MULTISELECT)(value);
-      }
+      this.applyFilter(this.selectInput.value);
     }
   }
 
@@ -78,21 +75,21 @@ class MultiSelectFilter extends Component {
 
   cleanFiltered() {
     const value = (this.props.defaultValue !== undefined) ? this.props.defaultValue : [];
-    this.setState(() => ({ isSelected: value.length > 0 }));
     this.selectInput.value = value;
-    this.props.onFilter(this.props.column, FILTER_TYPE.MULTISELECT)(value);
+    this.applyFilter(value);
   }
 
   applyFilter(value) {
-    this.selectInput.value = value;
+    if (value.length === 1 && value[0] === '') {
+      value = [];
+    }
     this.setState(() => ({ isSelected: value.length > 0 }));
     this.props.onFilter(this.props.column, FILTER_TYPE.MULTISELECT)(value);
   }
 
   filter(e) {
     const value = getSelections(e.target);
-    this.setState(() => ({ isSelected: value.length > 0 }));
-    this.props.onFilter(this.props.column, FILTER_TYPE.MULTISELECT)(value);
+    this.applyFilter(value);
   }
 
   render() {

packages/react-bootstrap-table2-filter/src/filter.js

@@ -191,17 +191,21 @@ export const filterByArray = _ => (
   data,
   dataField,
   { filterVal, comparator }
-) => (
-  data.filter((row) => {
+) => {
+  if (filterVal.length === 0) return data;
+  const refinedFilterVal = filterVal
+    .filter(x => _.isDefined(x))
+    .map(x => x.toString());
+  return data.filter((row) => {
     const cell = _.get(row, dataField);
     let cellStr = _.isDefined(cell) ? cell.toString() : '';
     if (comparator === EQ) {
-      return filterVal.indexOf(cellStr) !== -1;
+      return refinedFilterVal.indexOf(cellStr) !== -1;
     }
     cellStr = cellStr.toLocaleUpperCase();
-    return filterVal.some(item => cellStr.indexOf(item.toLocaleUpperCase()) !== -1);
-  })
-);
+    return refinedFilterVal.some(item => cellStr.indexOf(item.toLocaleUpperCase()) !== -1);
+  });
+};
 
 export const filterFactory = _ => (filterType) => {
   let filterFn;

packages/react-bootstrap-table2-filter/src/wrapper.js

@@ -53,8 +53,10 @@ export default (Base, {
         const currFilters = Object.assign({}, store.filters);
         const { dataField, filter } = column;
 
-        const needClearFilters = !_.isDefined(filterVal) || filterVal === '' ||
-          filterVal.length === 0 || (filterVal.length === 1 && filterVal[0] === '');
+        const needClearFilters =
+          !_.isDefined(filterVal) ||
+          filterVal === '' ||
+          filterVal.length === 0;
 
         if (needClearFilters) {
           delete currFilters[dataField];

packages/react-bootstrap-table2-filter/test/filter.test.js

@@ -123,6 +123,55 @@ describe('filter', () => {
     });
   });
 
+  describe('filterByArray', () => {
+    beforeEach(() => {
+      filterFn = filters(store, columns, _);
+    });
+
+    describe('when filter value is empty array', () => {
+      it('should return original data', () => {
+        currFilters.name = {
+          filterVal: [],
+          filterType: FILTER_TYPE.MULTISELECT
+        };
+
+        const result = filterFn(currFilters);
+        expect(result).toBeDefined();
+        expect(result).toHaveLength(store.data.length);
+      });
+    });
+
+    describe('when filter value is not an empty array', () => {
+      describe(`and comparator is ${EQ}`, () => {
+        it('should return data correctly', () => {
+          currFilters.price = {
+            filterVal: [201, 203],
+            filterType: FILTER_TYPE.MULTISELECT,
+            comparator: EQ
+          };
+
+          const result = filterFn(currFilters);
+          expect(result).toBeDefined();
+          expect(result).toHaveLength(2);
+        });
+      });
+
+      describe(`and comparator is ${LIKE}`, () => {
+        it('should return data correctly', () => {
+          currFilters.name = {
+            filterVal: ['name 3', '5'],
+            filterType: FILTER_TYPE.MULTISELECT,
+            comparator: LIKE
+          };
+
+          const result = filterFn(currFilters);
+          expect(result).toBeDefined();
+          expect(result).toHaveLength(3);
+        });
+      });
+    });
+  });
+
   describe('filterByNumber', () => {
     beforeEach(() => {
       filterFn = filters(store, columns, _);

packages/react-bootstrap-table2-filter/test/wrapper.test.js

@@ -163,7 +163,7 @@ describe('Wrapper', () => {
     });
 
     describe('when filterVal is empty or undefined', () => {
-      const filterVals = ['', undefined];
+      const filterVals = ['', undefined, []];
 
       it('should setting store object correctly', () => {
         filterVals.forEach((filterVal) => {