DataSearch creates a search box UI component that is connected to one or more database fields.

Example uses:

  • Searching for a rental listing by its name or description field.
  • Creating an e-commerce search box for finding products by their listing properties.

Usage

Basic Usage

<DataSearch componentId="SearchSensor" dataField={['name', 'brand']} />

Usage With All Props

<DataSearch
	componentId="SearchSensor"
	dataField={['name', 'brand']}
	placeholder="Type a car name"
	defaultSelected="volvo"
	defaultSuggestions={[{ label: 'Nissan', value: 'Nissan' }, { label: 'BMW', value: 'BMW' }]}
	fieldWeights={[1, 3]}
	queryFormat="or"
	fuzziness={0}
	autosuggest
	debounce={300}
	highlight
	highlightField="brand"
	showFilter={true}
	filterLabel="Cars"
	react={{
		and: ['CategoryFilter', 'SearchFilter'],
	}}
/>

Props

  • componentId String unique identifier of the component, can be referenced in other components' react prop.
  • dataField String or Array database field(s) to be connected to the component's UI view. DataSearch accepts an Array in addition to String, useful for applying search across multiple fields.
  • defaultSelected string [optional] preset the search query text in the search box.
  • placeholder String [optional] set the placeholder text to be shown in the searchbox input field. Defaults to "Search".
  • autoSuggest Boolean [optional] set whether the autosuggest functionality should be enabled or disabled. Defaults to true.
  • defaultSuggestions Array [optional] preset search suggestions to be shown on focus when the search box does not have any search query text set. Accepts an array of objects each having a label and value property. The label can contain either String or an HTML element.
  • highlight Boolean [optional] whether highlighting should be enabled in the returned results.
  • highlightField String or Array [optional] when highlighting is enabled, this prop allows specifying the fields which should be returned with the matching highlights. When not specified, it defaults to applying highlights on the field(s) specified in the dataField prop.
  • fieldWeights Array [optional] set the search weight for the database fields, useful when dataField is an Array of more than one field. This prop accepts an array of numbers. A higher number implies a higher relevance weight for the corresponding field in the search results.
  • queryFormat String [optional] Sets the query format, can be or or and. Defaults to or.

    • or returns all the results matching any of the search query text's parameters. For example, searching for "bat man" with or will return all the results matching either "bat" or "man".
    • On the other hand with and, only results matching both "bat" and "man" will be returned. It returns the results matching all of the search query text's parameters.
  • fuzziness String or Number [optional] Sets a maximum edit distance on the search parameters, can be 0, 1, 2 or "AUTO". Useful for showing the correct results for an incorrect search parameter by taking the fuzziness into account. For example, with a substitution of one character, fox can become box. Read more about it in the elastic search docs.
  • debounce Number [optional] delays executing the query by the specified time in ms while the user is typing. Defaults to 0, i.e. no debounce. Useful if you want to save on the number of requests sent.
  • 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.
  • 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
listItem ListItem component from native-base
list List component from native-base
icon Icon component from native-base
input Input component from native-base
button Button component from native-base
header Header component from native-base
title Title component from native-base
text Text component from react-native
modal Modal component from react-native

Demo


View on Snack

Styles

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

It also supports an innerStyle prop with the following keys:

  • label
  • left
  • button
  • icon
  • right
  • input

Read more about it here

Extending

DataSearch 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,
  4. specify how search suggestions should be filtered using react prop
<DataSearch
  ...
  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);
    }
  }
  // specify how and which suggestions are filtered using `react` prop.
  react={
    "and": ["pricingFilter", "dateFilter"],
    "or": ["searchFilter"]
  }
/>
  • style Object CSS styles to be applied to the DataSearch 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 DataSearch 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 DataSearch.
  • 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.
  • react Object specify dependent components to reactively update DataSearch's suggestions.

    • key String one of and, or, not defines the combining clause.

      • and clause implies that the results will be filtered by matches from all of the associated component states.
      • or clause implies that the results will be filtered by matches from at least one of the associated component states.
      • not clause implies that the results will be filtered by an inverse match of the associated component states.
    • value String or Array or Object

      • String is used for specifying a single component by its componentId.
      • Array is used for specifying multiple components by their componentId.
      • Object is used for nesting other key clauses.