[exploreV2] mapStateToProps for fields (#1882)

* Controls support for mapStateToProps

* Binding methods in the constructor

* Adressing comments

* Fixing tests

superset/assets/javascripts/explorev2/components/FieldSetRow.jsx

@@ -1,52 +1,23 @@
 import React, { PropTypes } from 'react';
-import FieldSet from './FieldSet';
 
 const NUM_COLUMNS = 12;
 
 const propTypes = {
-  fields: PropTypes.object.isRequired,
-  fieldSets: PropTypes.array.isRequired,
-  fieldOverrides: PropTypes.object,
-  onChange: PropTypes.func,
-  form_data: PropTypes.object.isRequired,
+  fields: PropTypes.arrayOf(PropTypes.object).isRequired,
 };
 
-const defaultProps = {
-  fieldOverrides: {},
-  onChange: () => {},
-};
-
-export default class FieldSetRow extends React.Component {
-  getFieldData(fs) {
-    const { fields, fieldOverrides } = this.props;
-    let fieldData = fields[fs];
-    if (fieldOverrides.hasOwnProperty(fs)) {
-      const overrideData = fieldOverrides[fs];
-      fieldData = Object.assign({}, fieldData, overrideData);
-    }
-    return fieldData;
-  }
-  render() {
-    const colSize = NUM_COLUMNS / this.props.fieldSets.length;
-    return (
-      <div className="row space-2">
-        {this.props.fieldSets.map((fs) => {
-          const fieldData = this.getFieldData(fs);
-          return (
-            <div className={`col-lg-${colSize} col-xs-12`} key={fs}>
-              <FieldSet
-                name={fs}
-                onChange={this.props.onChange}
-                value={this.props.form_data[fs]}
-                {...fieldData}
-              />
-            </div>
-          );
-        })}
-      </div>
-    );
-  }
+function FieldSetRow(props) {
+  const colSize = NUM_COLUMNS / props.fields.length;
+  return (
+    <div className="row space-2">
+      {props.fields.map((field, i) => (
+        <div className={`col-lg-${colSize} col-xs-12`} key={i} >
+          {field}
+        </div>
+      ))}
+    </div>
+  );
 }
 
 FieldSetRow.propTypes = propTypes;
-FieldSetRow.defaultProps = defaultProps;
+export default FieldSetRow;