fix #1054

Author: AllenFang

packages/react-bootstrap-table2-filter/README.md

@@ -115,7 +115,9 @@ const qualityFilter = selectFilter({
 // omit...
 ```
 
-> Note, the selectOptions can be an array also: 
+> Note, the selectOptions can be an array or a function which return an array: 
+
+### Array as options
 
 ```js
 const selectOptions = [
@@ -133,6 +135,24 @@ const columns = [
   })
 }];
 ```
+### Function as options
+
+```js
+const selectOptions = [
+  { value: 0, label: 'good' },
+  { value: 1, label: 'Bad' },
+  { value: 2, label: 'unknown' }
+];
+const columns = [
+  ..., {
+  dataField: 'quality',
+  text: 'Product Quailty',
+  formatter: cell => selectOptions.find(opt => opt.value === cell).label,
+  filter: selectFilter({
+    options: () => selectOptions
+  })
+}];
+```
 
 The benifit is `react-bootstrap-table2` will render the select options by the order of array.
 

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

@@ -1,6 +1,7 @@
 /* eslint react/require-default-props: 0 */
 /* eslint no-return-assign: 0 */
 /* eslint react/no-unused-prop-types: 0 */
+/* eslint class-methods-use-this: 0 */
 import React, { Component } from 'react';
 import PropTypes from 'prop-types';
 import { LIKE, EQ } from '../comparison';
@@ -44,7 +45,8 @@ class SelectFilter extends Component {
   constructor(props) {
     super(props);
     this.filter = this.filter.bind(this);
-    const isSelected = getOptionValue(props.options, this.getDefaultValue()) !== undefined;
+    this.options = this.getOptions(props);
+    const isSelected = getOptionValue(this.options, this.getDefaultValue()) !== undefined;
     this.state = { isSelected };
   }
 
@@ -69,19 +71,30 @@ class SelectFilter extends Component {
 
   componentDidUpdate(prevProps) {
     let needFilter = false;
-    if (this.props.defaultValue !== prevProps.defaultValue) {
+    const {
+      column,
+      onFilter,
+      defaultValue
+    } = this.props;
+    const nextOptions = this.getOptions(this.props);
+    if (defaultValue !== prevProps.defaultValue) {
       needFilter = true;
-    } else if (!optionsEquals(this.props.options, prevProps.options)) {
+    } else if (!optionsEquals(nextOptions, this.options)) {
+      this.options = nextOptions;
       needFilter = true;
     }
     if (needFilter) {
       const value = this.selectInput.value;
       if (value) {
-        this.props.onFilter(this.props.column, FILTER_TYPE.SELECT)(value);
+        onFilter(column, FILTER_TYPE.SELECT)(value);
       }
     }
   }
 
+  getOptions(props) {
+    return typeof props.options === 'function' ? props.options(props.column) : props.options;
+  }
+
   getDefaultValue() {
     const { filterState, defaultValue } = this.props;
     if (filterState && typeof filterState.filterVal !== 'undefined') {
@@ -90,25 +103,6 @@ class SelectFilter extends Component {
     return defaultValue;
   }
 
-  getOptions() {
-    const optionTags = [];
-    const { options, placeholder, column, withoutEmptyOption } = this.props;
-    if (!withoutEmptyOption) {
-      optionTags.push((
-        <option key="-1" value="">{ placeholder || `Select ${column.text}...` }</option>
-      ));
-    }
-    if (Array.isArray(options)) {
-      options.forEach(({ value, label }) =>
-        optionTags.push(<option key={ value } value={ value }>{ label }</option>));
-    } else {
-      Object.keys(options).forEach(key =>
-        optionTags.push(<option key={ key } value={ key }>{ options[key] }</option>)
-      );
-    }
-    return optionTags;
-  }
-
   cleanFiltered() {
     const value = (this.props.defaultValue !== undefined) ? this.props.defaultValue : '';
     this.setState(() => ({ isSelected: value !== '' }));
@@ -128,6 +122,26 @@ class SelectFilter extends Component {
     this.props.onFilter(this.props.column, FILTER_TYPE.SELECT)(value);
   }
 
+  renderOptions() {
+    const optionTags = [];
+    const { options } = this;
+    const { placeholder, column, withoutEmptyOption } = this.props;
+    if (!withoutEmptyOption) {
+      optionTags.push((
+        <option key="-1" value="">{ placeholder || `Select ${column.text}...` }</option>
+      ));
+    }
+    if (Array.isArray(options)) {
+      options.forEach(({ value, label }) =>
+        optionTags.push(<option key={ value } value={ value }>{ label }</option>));
+    } else {
+      Object.keys(options).forEach(key =>
+        optionTags.push(<option key={ key } value={ key }>{ options[key] }</option>)
+      );
+    }
+    return optionTags;
+  }
+
   render() {
     const {
       style,
@@ -163,7 +177,7 @@ class SelectFilter extends Component {
           onClick={ e => e.stopPropagation() }
           defaultValue={ this.getDefaultValue() || '' }
         >
-          { this.getOptions() }
+          { this.renderOptions() }
         </select>
       </label>
     );