DateRange

DateRange creates a calendar view based UI component that is connected to date fields. It is used for filtering results by a date like property.

Example uses:

  • picking a date range for booking a hotel room.
  • finding search results from a database based on date range.

Usage

Basic Usage

<DateRange
  componentId="DateSensor"
  dataField="mtime"
/>

Usage With All Props

<DateRange
  componentId="DateSensor"
  dataField="mtime"
  defaultSelected={{
      start: "2017-01-17",
      end: "2017-01-23"
  }}
  initialMonth="2017-01-01"
  queryFormat="date"
  placeholder="Pick date"
  showFilter={true}
  filterLabel="Date"
/>

Props

  • componentId String
    unique identifier of the component, can be referenced in other components’ react prop.
  • dataField String
    data field to be connected to the component’s UI view.
  • defaultSelected Object [optional]
    pre-selects a date range. Accepts the start and end key with String values.
  • initialMonth String [optional]
    starts the calendar view from the specified month.
  • placeholder String [optional]
    placeholder to be displayed in the dropdown searchbox. Defaults to “Select a date”.
  • showFilter Boolean [optional]
    show as filter when a value is selected in a global selected filters view. Defaults to true.
  • filterLabel String [optional]
    An optional label to display for the component in the global selected filters view. This is only applicable if showFilter is enabled. Default value used here is componentId.
  • queryFormat String [optional]
    sets the date format to be used in the query, can accept one of the following:

queryFormat Representation as elasticsearch date
epoch_millis (default) epoch_millis
epoch_second epoch_second
basic_time HHmmss.SSSZ
basic_time_no_millis HHmmssZ
date yyyy-MM-dd
basic_date yyyyMMdd
basic_date_time yyyyMMdd'T'HHmmss.SSSZ
basic_date_time_no_millis yyyyMMdd'T'HHmmssZ
date_time_no_millis yyyy-MM-dd'T'HH:mm:ssZZ
  • innerProps Object [optional]
    specifies additional props for the internal components. Accepts an object with the specified keys. Read more about the usage here

Key Explanation
item The wrapping Item component from native-base
icon Icon component from native-base
button Button component from native-base
header Header component from native-base
title Title component from native-base
calendar Calendar component from react-native-calendars
text Text component from react-native
modal Modal component from react-native

Demo


View on Snack

Styles

DateRange component supports style prop. Read more about it here.

It also supports an innerStyle prop with the following keys:

  • label
  • left
  • button
  • icon
  • right
  • body
  • title
  • calendar

Read more about it here

Extending

DateRange component can be extended to

  1. customize the look and feel with style,
  2. update the underlying DB query with customQuery,
  3. connect with external interfaces using beforeValueChange, onValueChange and onQueryChange
<DateRange
  ...
  style={{ paddingBottom: 10 }}
  customQuery={
    function(value, props) {
      return {
        match: {
          data_field: "this is a test"
        }
      }
    }
  }
  beforeValueChange={
    function(value) {
      // called before the value is set
      // returns a promise
      return new Promise((resolve, reject) => {
        // update state or component props
        resolve()
        // or reject()
      })
    }
  }
  onValueChange={
    function(value) {
      console.log("current value: ", value)
      // set the state
      // use the value with other js code
    }
  }
  onQueryChange={
    function(prevQuery, nextQuery) {
      // use the query with other js code
      console.log('prevQuery', prevQuery);
      console.log('nextQuery', nextQuery);
    }
  }
/>
  • style Object CSS styles to be applied to the DateRange component.
  • customQuery Function takes value and props as parameters and returns the data query to be applied to the component, as defined in Elasticsearch Query DSL. Note: customQuery is called on value changes in the DateRange component as long as the component is a part of react dependency of at least one other component.
  • beforeValueChange Function
    is a callback function which accepts component’s future value as a parameter and returns a promise. It is called everytime before a component’s value changes. The promise, if and when resolved, triggers the execution of the component’s query and if rejected, kills the query execution. This method can act as a gatekeeper for query execution, since it only executes the query after the provided promise has been resolved.
  • onValueChange Function
    is a callback function which accepts component’s current value as a parameter. It is called everytime the component’s value changes. This prop is handy in cases where you want to generate a side-effect on value selection. For example: You want to show a pop-up modal with the valid discount coupon code when a user searches for something in the DateRange.
  • onQueryChange Function
    is a callback function which accepts component’s prevQuery and nextQuery as parameters. It is called everytime the component’s query changes. This prop is handy in cases where you want to generate a side-effect whenever the component’s query would change.