Support for dropdown of predefined options in data sources setup

client/app/components/dynamic-form/DynamicForm.jsx

@@ -146,9 +146,21 @@ class DynamicForm extends React.Component {
     };
 
     return getFieldDecorator(name, decoratorOptions)(
-      <Select {...props} optionFilterProp="children" loading={loading || false} mode={mode}>
-        {options && options.map(({ value, title }) => (
-          <Option key={`${value}`} value={value} disabled={readOnly}>{ title || value }</Option>
+      <Select
+        {...props}
+        optionFilterProp="children"
+        loading={loading || false}
+        mode={mode}
+        getPopupContainer={trigger => trigger.parentNode}
+      >
+        {options && options.map(option => (
+          <Option
+            key={`${option.value}`}
+            value={option.value}
+            disabled={readOnly}
+          >
+            {option.name || option.value}
+          </Option>
         ))}
       </Select>,
     );

client/app/components/dynamic-form/dynamicFormHelper.js

@@ -1,5 +1,5 @@
 import React from 'react';
-import { each, includes, isUndefined } from 'lodash';
+import { each, includes, isUndefined, isEmpty, map } from 'lodash';
 
 function orderedInputs(properties, order, targetOptions) {
   const inputs = new Array(order.length);
@@ -14,6 +14,11 @@ function orderedInputs(properties, order, targetOptions) {
       initialValue: targetOptions[key],
     };
 
+    if (input.type === 'select') {
+      input.placeholder = 'Select an option';
+      input.options = properties[key].options;
+    }
+
     if (position > -1) {
       inputs[position] = input;
     } else {
@@ -41,27 +46,45 @@ function normalizeSchema(configurationSchema) {
       prop.type = 'text';
     }
 
+    if (!isEmpty(prop.enum)) {
+      prop.type = 'select';
+      prop.options = map(prop.enum, value => ({ value, name: value }));
+    }
+
+    if (!isEmpty(prop.extendedEnum)) {
+      prop.type = 'select';
+      prop.options = prop.extendedEnum;
+    }
+
     prop.required = includes(configurationSchema.required, name);
   });
 
   configurationSchema.order = configurationSchema.order || [];
 }
 
-function setDefaultValueForCheckboxes(configurationSchema, options = {}) {
-  if (Object.keys(options).length === 0) {
-    const properties = configurationSchema.properties;
-    Object.keys(properties).forEach((property) => {
-      if (!isUndefined(properties[property].default) && properties[property].type === 'checkbox') {
-        options[property] = properties[property].default;
-      }
-    });
-  }
+function setDefaultValueToFields(configurationSchema, options = {}) {
+  const properties = configurationSchema.properties;
+  Object.keys(properties).forEach((key) => {
+    const property = properties[key];
+    // set default value for checkboxes
+    if (!isUndefined(property.default) && property.type === 'checkbox') {
+      options[key] = property.default;
+    }
+    // set default or first value when value has predefined options
+    if (property.type === 'select') {
+      const optionValues = map(property.options, option => option.value);
+      options[key] = includes(optionValues, property.default) ? property.default : optionValues[0];
+    }
+  });
 }
 
 function getFields(type = {}, target = { options: {} }) {
   const configurationSchema = type.configuration_schema;
   normalizeSchema(configurationSchema);
-  setDefaultValueForCheckboxes(configurationSchema, target.options);
+  const hasTargetObject = Object.keys(target.options).length > 0;
+  if (!hasTargetObject) {
+    setDefaultValueToFields(configurationSchema, target.options);
+  }
 
   const isNewTarget = !target.id;
   const inputs = [

client/app/components/users/UserEdit.jsx

@@ -35,7 +35,7 @@ export default class UserEdit extends React.Component {
   componentDidMount() {
     Group.query((groups) => {
       this.setState({
-        groups: groups.map(({ id, name }) => ({ value: id, title: name })),
+        groups: groups.map(({ id, name }) => ({ value: id, name })),
         loadingGroups: false,
       });
     });
@@ -165,7 +165,7 @@ export default class UserEdit extends React.Component {
       <div data-test="Groups">
         {groups.filter(group => includes(user.groupIds, group.value)).map((group => (
           <Tag className="m-b-5 m-r-5" key={group.value}>
-            <a href={`groups/${group.value}`}>{group.title}</a>
+            <a href={`groups/${group.value}`}>{group.name}</a>
           </Tag>
         )))}
       </div>

redash/query_runner/impala_ds.py

@@ -48,7 +48,11 @@ def configuration_schema(cls):
                 },
                 "protocol": {
                     "type": "string",
-                    "title": "Please specify beeswax or hiveserver2"
+                    "extendedEnum": [
+                        {"value": "beeswax", "name": "Beeswax"},
+                        {"value": "hiveserver2", "name": "Hive Server 2"}
+                    ],
+                    "title": "Protocol"
                 },
                 "database": {
                     "type": "string"

redash/utils/configuration.py

@@ -24,6 +24,11 @@ def __init__(self, config, schema=None):
         self.set_schema(schema)
 
     def set_schema(self, schema):
+        if isinstance(schema, dict):
+            for prop in schema.get('properties', {}).values():
+                if 'extendedEnum' in prop:
+                    prop['enum'] = map(lambda v : v['value'], prop['extendedEnum'])
+                    del prop['extendedEnum']
         self._schema = schema
 
     @property