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Version: v4

<QueryBuilder />

info

Please refer to the TypeScript page for information about the types and interfaces referenced below.

The default export of react-querybuilder is the <QueryBuilder /> React component.

All props are optional, but as stated in the getting started guide, the query builder is really only useful when, at a minimum, the fields prop is defined.

note

When you see RuleGroupTypeAny below (e.g. for query, defaultQuery, and onQueryChange), that means the type must either be RuleGroupType or RuleGroupTypeIC. However, if the type is RuleGroupTypeIC, then the independentCombinators prop must be set to true. Likewise, if the type is RuleGroupType then independentCombinators must be false or undefined.

Props​

fields​

Field[] | OptionGroup<Field>[] | Record<string, Field>

The array of fields that should be used or an array of option groups containing arrays of fields. (Alternatively, fields can be an object where the keys correspond to each field name and the values are the field definitions. If fields is an object, then the options array passed to the fieldSelector component will be sorted alphabetically by the label property.)

tip

Field objects can also contain custom properties. Each field object will be passed in its entirety to the appropriate OperatorSelector and ValueEditor components as the fieldData prop (see the section on controlElements).

onQueryChange​

(query: RuleGroupTypeAny) => void

This is a callback function that is invoked anytime the query configuration changes. The query is provided as an object of type RuleGroupType by default:

{
  "combinator": "and",
  "not": false,
  "rules": [
    {
      "field": "firstName",
      "operator": "=",
      "value": "Steve"
    },
    {
      "field": "lastName",
      "operator": "=",
      "value": "Vai"
    },
    {
      "combinator": "and",
      "rules": [
        {
          "field": "age",
          "operator": ">",
          "value": "30"
        }
      ]
    }
  ]
}

If the independentCombinators prop is provided, then the query argument will be of type RuleGroupTypeIC, which looks like this:

{
  "not": false,
  "rules": [
    {
      "field": "firstName",
      "operator": "=",
      "value": "Steve"
    },
    "and",
    {
      "field": "lastName",
      "operator": "=",
      "value": "Vai"
    },
    "and",
    {
      "rules": [
        {
          "field": "age",
          "operator": ">",
          "value": "30"
        }
      ]
    }
  ]
}

query​

RuleGroupTypeAny

The query is an object of type RuleGroupType (or RuleGroupTypeIC, if independentCombinators is true). If this prop is provided, <QueryBuilder /> will be a controlled component.

The query prop follows the same format as the parameter passed to the onQueryChange callback since they are meant to be used together to control the component. See examples.

defaultQuery​

RuleGroupTypeAny

The initial query when <QueryBuilder /> is uncontrolled.

caution

Do not provide both query and defaultQuery props. To use <QueryBuilder /> as a controlled component, provide and manage the query prop in combination with the onQueryChange callback. Use defaultQuery (or neither query prop) to render an uncontrolled component.

If both props are provided, TypeScript will throw an error during compilation and an error will be logged to the console during runtime (in "development" mode only). Errors will also be logged to the console if the query prop is defined during one render and undefined in the next, or vice versa.

context​

any

A "bucket" for passing arbitrary props down to custom components (default components will ignore this prop). The context prop is passed to each and every component, so it's accessible anywhere in the QueryBuilder component tree.

operators​

NameLabelPair[] | OptionGroup<NameLabelPair>[]

The array of operators that should be used. The default operators include:

[
  { name: '=', label: '=' },
  { name: '!=', label: '!=' },
  { name: '<', label: '<' },
  { name: '>', label: '>' },
  { name: '<=', label: '<=' },
  { name: '>=', label: '>=' },
  { name: 'contains', label: 'contains' },
  { name: 'beginsWith', label: 'begins with' },
  { name: 'endsWith', label: 'ends with' },
  { name: 'doesNotContain', label: 'does not contain' },
  { name: 'doesNotBeginWith', label: 'does not begin with' },
  { name: 'doesNotEndWith', label: 'does not end with' },
  { name: 'null', label: 'is null' },
  { name: 'notNull', label: 'is not null' },
  { name: 'in', label: 'in' },
  { name: 'notIn', label: 'not in' },
  { name: 'between', label: 'between' },
  { name: 'notBetween', label: 'not between' },
];

combinators​

NameLabelPair[] | OptionGroup<NameLabelPair>[]

The array of combinators that should be used for RuleGroups. The default set includes:

[
  { name: 'and', label: 'AND' },
  { name: 'or', label: 'OR' },
];

controlElements​

interface Controls {
  addGroupAction?: React.ComponentType<ActionWithRulesProps>;
  addRuleAction?: React.ComponentType<ActionWithRulesProps>;
  cloneGroupAction?: React.ComponentType<ActionWithRulesProps>;
  cloneRuleAction?: React.ComponentType<ActionProps>;
  combinatorSelector?: React.ComponentType<CombinatorSelectorProps>;
  dragHandle?: React.ForwardRefExoticComponent<
    DragHandleProps & React.RefAttributes<HTMLSpanElement>
  >;
  fieldSelector?: React.ComponentType<FieldSelectorProps>;
  notToggle?: React.ComponentType<NotToggleProps>;
  operatorSelector?: React.ComponentType<OperatorSelectorProps>;
  removeGroupAction?: React.ComponentType<ActionWithRulesProps>;
  removeRuleAction?: React.ComponentType<ActionProps>;
  rule?: React.ComponentType<RuleProps>;
  ruleGroup?: React.ComponentType<RuleGroupProps>;
  valueEditor?: React.ComponentType<ValueEditorProps>;
  valueSourceSelector?: React.ComponentType<ValueSourceSelectorProps>;
}

This is a custom controls object that allows you to override the default control elements. The following control overrides are supported:

addGroupAction​

By default a <button /> is used. The following props are passed:

interface ActionWithRulesProps {
  label: string; // translations.addGroup.label, e.g. "+Group"
  title: string; // translations.addGroup.title, e.g. "Add group"
  className: string; // CSS classNames to be applied
  handleOnClick: (e: React.MouseEvent) => void; // Callback function to invoke adding a <RuleGroup />
  rules: (RuleGroupType | RuleType)[]; // Provides the number of rules already present for this group
  level: number; // The level of the current group
  context: any; // Container for custom props that are passed to all components
  validation: boolean | ValidationResult; // validation result of this group
}

cloneGroupAction​

By default a <button /> is used. The following props are passed:

interface ActionWithRulesProps {
  label: string; // translations.addGroup.label, e.g. "+Group"
  title: string; // translations.addGroup.title, e.g. "Add group"
  className: string; // CSS classNames to be applied
  handleOnClick: (e: React.MouseEvent) => void; // Callback function to invoke adding a <RuleGroup />
  rules: (RuleGroupType | RuleType)[]; // Provides the number of rules already present for this group
  level: number; // The level of the current group
  context: any; // Container for custom props that are passed to all components
  validation: boolean | ValidationResult; // validation result of this group
}

removeGroupAction​

By default a <button /> is used. The following props are passed:

interface ActionWithRulesProps {
  label: string; // translations.removeGroup.label, e.g. "x"
  title: string; // translations.removeGroup.title, e.g. "Remove group"
  className: string; // CSS classNames to be applied
  handleOnClick: (e: React.MouseEvent) => void; // Callback function to invoke adding a <RuleGroup />
  rules: (RuleGroupType | RuleType)[]; // Provides the number of rules already present for this group
  level: number; // The level of the current group
  context: any; // Container for custom props that are passed to all components
  validation: boolean | ValidationResult; // validation result of this group
}

lockGroupAction​

By default a <button /> is used. The following props are passed:

interface ActionWithRulesProps {
  label: string; // translations.lockGroup.label, e.g. "🔓" when unlocked and "🔒" when locked
  title: string; // translations.lockGroup.title, e.g. "Lock group" or "Unlock group"
  className: string; // CSS classNames to be applied
  handleOnClick: (e: React.MouseEvent) => void; // Callback function to invoke locking the rule group
  rules: (RuleGroupType | RuleType)[]; // The rules present for this group
  level: number; // The level of the current group
  context: any; // Container for custom props that are passed to all components
  validation: boolean | ValidationResult; // validation result of this group
}

addRuleAction​

By default a <button /> is used. The following props are passed:

interface ActionWithRulesProps {
  label: string; // translations.addGroup.label, e.g. "+Rule"
  title: string; // translations.addGroup.title, e.g. "Add rule"
  className: string; // CSS classNames to be applied
  handleOnClick: (e: React.MouseEvent) => void; // Callback function to invoke adding a <RuleGroup />
  rules: (RuleGroupType | RuleType)[]; // Provides the number of rules already present for this group
  level: number; // The level of the current group
  context: any; // Container for custom props that are passed to all components
  validation: boolean | ValidationResult; // validation result of this group
}

cloneRuleAction​

By default a <button /> is used. The following props are passed:

interface ActionProps {
  label: string; // translations.addGroup.label, e.g. "+Rule"
  title: string; // translations.addGroup.title, e.g. "Add rule"
  className: string; // CSS classNames to be applied
  handleOnClick: (e: React.MouseEvent) => void; // Callback function to invoke adding a <RuleGroup />
  level: number; // The level of the current group
  context: any; // Container for custom props that are passed to all components
  validation: boolean | ValidationResult; // validation result of this rule
}

removeRuleAction​

By default a <button /> is used. The following props are passed:

interface ActionProps {
  label: string; // translations.removeRule.label, e.g. "x"
  title: string; // translations.removeRule.title, e.g. "Remove rule"
  className: string; // CSS classNames to be applied
  handleOnClick: (e: React.MouseEvent) => void; // Callback function to invoke adding a <RuleGroup />
  level: number; // The level of the current group
  context: any; // Container for custom props that are passed to all components
  validation: boolean | ValidationResult; // validation result of this rule
}

lockRuleAction​

By default a <button /> is used. The following props are passed:

interface ActionProps {
  label: string; // translations.lockRule.label, e.g. "🔓" when unlocked and "🔒" when locked
  title: string; // translations.lockRule.title, e.g. "Lock rule" or "Unlock rule"
  className: string; // CSS classNames to be applied
  handleOnClick: (e: React.MouseEvent) => void; // Callback function to invoke locking the rule
  level: number; // The level of the current rule
  context: any; // Container for custom props that are passed to all components
  validation: boolean | ValidationResult; // validation result of this rule
}

combinatorSelector​

By default a <select /> is used. The following props are passed:

interface CombinatorSelectorProps {
  options: NameLabelPair[] | OptionGroup<NameLabelPair>[]; // Same as 'combinators' passed into QueryBuilder
  value: string; // Selected combinator from the existing query representation, if any
  className: string; // CSS classNames to be applied
  handleOnChange: (value: any) => void; // Callback function to update query representation
  rules: (RuleGroupType | RuleType)[]; // Provides the number of rules already present for this group
  level: number; // The level of the current group
  context: any; // Container for custom props that are passed to all components
  validation: boolean | ValidationResult; // validation result of this group
}

dragHandle​

By default a <span /> is used. Note that this component must be based on React.forwardRef, and must always render an element (i.e. never return null). The following props are passed:

interface DragHandleProps {
  title: string; // translations.dragHandle.title, e.g. "Drag handle"
  className: string; // CSS classNames to be applied
  level: number; // The level of the current group
  context: any; // Container for custom props that are passed to all components
  validation: boolean | ValidationResult; // validation result of this group
  label: string; // translations.dragHandle.label, e.g. "⁞⁞"
}

fieldSelector​

By default a <select /> is used. The following props are passed:

interface FieldSelectorProps {
  options: Field[]; // Same as 'fields' passed into QueryBuilder
  value: string; // Selected field from the existing query representation, if any
  title: string; // translations.fields.title, e.g. "Fields"
  operator: string; // Selected operator from the existing query representation, if any
  className: string; // CSS classNames to be applied
  handleOnChange: (value: any) => void; // Callback function to update query representation
  level: number; // The level the group this rule belongs to
  context: any; // Container for custom props that are passed to all components
  validation: boolean | ValidationResult; // validation result of this rule
}

operatorSelector​

By default a <select /> is used. The following props are passed:

interface OperatorSelectorProps {
  field: string; // Field name corresponding to this rule
  fieldData: Field; // The entire object from the fields array for this field
  options: NameLabelPair[] | OptionGroup<NameLabelPair>[]; // Return value of getOperators(field)
  value: string; // Selected operator from the existing query representation, if any
  title: string; // translations.operators.title, e.g. "Operators"
  className: string; // CSS classNames to be applied
  handleOnChange: (value: any) => void; // Callback function to update query representation
  level: number; // The level the group this rule belongs to
  context: any; // Container for custom props that are passed to all components
  validation: boolean | ValidationResult; // validation result of this rule
}

valueEditor​

By default an <input type="text" /> is used. The following props are passed:

interface ValueEditorProps {
  field: string; // Field name corresponding to this rule
  fieldData: Field; // The entire object from the fields array for this field
  operator: string; // Operator name corresponding to this rule
  value: string; // Value from the existing query representation, if any
  title: string; // translations.value.title, e.g. "Value"
  handleOnChange: (value: any) => void; // Callback function to update the query representation
  type: ValueEditorType; // Type of editor to be displayed
  inputType: string; // @type of <input> if `type` is "text"
  values: any[]; // List of available values for this rule
  level: number; // The level the group this rule belongs to
  className: string; // CSS classNames to be applied
  context: any; // Container for custom props that are passed to all components
  validation: boolean | ValidationResult; // validation result of this rule
}

valueSourceSelector​

By default a <select /> is used. The following props are passed:

interface ValueSourceSelectorProps {
  field: string; // Field name corresponding to this rule
  fieldData: Field; // The entire object from the fields array for this field
  options: ValueSourceOption[] | OptionGroup<ValueSourceOption>[]; // Return value of getValueSources(field, operator)
  value: ValueSource; // Selected value source from the existing query representation, if any
  title: string; // translations.valueSourceSelector.title, e.g. "Value source"
  className: string; // CSS classNames to be applied
  handleOnChange: (value: any) => void; // Callback function to update query representation
  level: number; // The level the group this rule belongs to
  context: any; // Container for custom props that are passed to all components
  validation: boolean | ValidationResult; // validation result of this rule
}

notToggle​

By default, <label><input type="checkbox" />Not</label> is used. The following props are passed:

interface NotToggleProps {
  checked: boolean; // Whether the input should be checked or not
  handleOnChange: (checked: boolean) => void; // Callback function to update the query representation
  title: string; // translations.notToggle.title, e.g. "Invert this group"
  level: number; // The level of the group
  className: string; // CSS classNames to be applied
  context: any; // Container for custom props that are passed to all components
  validation: boolean | ValidationResult; // validation result of this group
}

ruleGroup​

By default, <RuleGroup /> is used. The following props are passed:

interface RuleGroupProps {
  id?: string; // Unique identifier for this rule group
  path: number[]; // path of indexes through a rule group hierarchy
  ruleGroup: RuleGroupTypeAny; // The rule group object
  translations: Translations; // The full translations object
  schema: Schema; // See `Schema` on the TypeScript page
  context: any; // Container for custom props that are passed to all components
  disabled?: boolean; // Whether the rule itself is disabled
  parentDisabled?: boolean; // Whether an ancestor of this rule is disabled
}

rule​

By default, <Rule /> is used. The following props are passed:

interface RuleProps {
  id?: string; // Unique identifier for this rule
  path: number[]; // path of indexes through a rule group hierarchy
  rule: RuleType; // The rule object
  translations: Translations; // The full translations object
  schema: Schema; // See `Schema` on the TypeScript page
  context: any; // Container for custom props that are passed to all components
  disabled?: boolean; // Whether the rule itself is disabled
  parentDisabled?: boolean; // Whether an ancestor of this rule is disabled
}

getOperators​

(field: string) => NameLabelPair[] | OptionGroup<NameLabelPair>[] | null

This is a callback function invoked to get the list of allowed operators for the given field. If null is returned, the default operators are used.

getValueEditorType​

(field: string, operator: string) => ValueEditorType

This is a callback function invoked to get the type of ValueEditor for the given field and operator. Allowed values are "text" (the default if the function is not provided or if null is returned), "select", "checkbox", and "radio".

getValueSources​

(field: string, operator: string) => ValueSources;

This is a callback function invoked to get the list of allowed value sources for a given field and operator. The return value must be an array including at least "value" or "field", but may also contain both (in any order). If the prop is undefined, () => ["value"] is used. The first element in the array will be the default.

getInputType​

(field: string, operator: string) => string

This is a callback function invoked to get the type of <input /> for the given field and operator (only applicable when getValueEditorType returns "text" or a falsy value). If no function is provided, "text" is used as the default.

getValues​

(field: string, operator: string) => NameLabelPair[] | OptionGroup<NameLabelPair>[]

This is a callback function invoked to get the list of allowed values for the given field and operator (only applicable when getValueEditorType returns "select" or "radio"). If no function is provided, an empty array is used as the default.

getDefaultField​

string | ((fieldsData: Field[]) => string)

The default field for new rules. This can be a string identifying the default field, or a function that returns a field name.

getDefaultOperator​

string | ((field: string) => string)

The default operator for new rules. This can be a string identifying the default operator, or a function that returns an operator name.

getDefaultValue​

(rule: RuleType) => any

This function returns the default value for new rules.

onAddRule​

(rule: RuleType, parentPath: number[], query: RuleGroupTypeAny) => RuleType | false

This callback is invoked before a new rule is added. The function should either manipulate the rule and return it as an object of type RuleType, or return false to cancel the addition of the rule. You can use findPath to locate the parent group to which the new rule will be added within the query hierarchy.

tip

To completely prevent the addition of new rules, pass controlElements={{ addRuleAction: () => null }} which will hide the "+Rule" button.

onAddGroup​

<RG extends RuleGroupTypeAny>(ruleGroup: RG, parentPath: number[], query: RG) => RG | false

This callback is invoked before a new group is added. The function should either manipulate the group and return it as an object of the same type (either RuleGroupType or RuleGroupTypeIC), or return false to cancel the addition of the group. You can use findPath to locate the parent group to which the new group will be added within the query hierarchy.

tip

To completely prevent the addition of new groups, pass controlElements={{ addGroupAction: () => null }} which will hide the "+Group" button.

controlClassnames​

This prop can be used to assign specific CSS classes to various controls that are rendered by the <QueryBuilder /> component. This is an object with the following signature:

interface Classnames {
  queryBuilder?: string; // Root <div> element
  ruleGroup?: string; // <div> containing a RuleGroup
  header?: string; // <div> containing the RuleGroup header controls
  body?: string; // <div> containing the RuleGroup child rules/groups
  combinators?: string; // <select> control for combinators
  addRule?: string; // <button> to add a Rule
  addGroup?: string; // <button> to add a RuleGroup
  cloneRule?: string; // <button> to clone a Rule
  cloneGroup?: string; // <button> to clone a RuleGroup
  removeGroup?: string; // <button> to remove a RuleGroup
  lockRule?: string; // <button> to lock/disable a Rule
  lockGroup?: string; // <button> to lock/disable a RuleGroup
  notToggle?: string; // <label> on the "not" toggle
  rule?: string; // <div> containing the Rule
  fields?: string; // <select> control for fields
  operators?: string; // <select> control for operators
  value?: string; // <input> for the field value
  removeRule?: string; // <button> to remove a Rule
  dragHandle?: string; // <span> as drag-and-drop handle
  valueSource?: string; // <select> control for value source
}

translations​

This prop can be used to override translatable texts applied to various controls that are created by the <QueryBuilder /> component. All keys in the object and all properties within each key are optional. Missing translations will default to the values below.

{
  "fields": {
    "title": "Fields",
    "placeholderName": "~",
    "placeholderLabel": "------",
    "placeholderGroupLabel": "------"
  },
  "operators": {
    "title": "Operators",
    "placeholderName": "~",
    "placeholderLabel": "------",
    "placeholderGroupLabel": "------"
  },
  "value": {
    "title": "Value"
  },
  "removeRule": {
    "label": "x",
    "title": "Remove rule"
  },
  "removeGroup": {
    "label": "x",
    "title": "Remove group"
  },
  "addRule": {
    "label": "+Rule",
    "title": "Add rule"
  },
  "addGroup": {
    "label": "+Group",
    "title": "Add group"
  },
  "combinators": {
    "title": "Combinators"
  },
  "notToggle": {
    "label": "Not",
    "title": "Invert this group"
  },
  "cloneRule": {
    "label": "⧉",
    "title": "Clone rule"
  },
  "cloneRuleGroup": {
    "label": "⧉",
    "title": "Clone group"
  },
  "dragHandle": {
    "label": "⁞⁞",
    "title": "Drag handle"
  },
  "lockRule": {
    "label": "🔓",
    "title": "Lock rule"
  },
  "lockGroup": {
    "label": "🔓",
    "title": "Lock group"
  },
  "lockRuleDisabled": {
    "label": "🔒",
    "title": "Unlock rule"
  },
  "lockGroupDisabled": {
    "label": "🔒",
    "title": "Unlock group"
  }
}

showCombinatorsBetweenRules​

boolean (default false) Click here for demo

Pass true to show the combinators (and/or) between rules and rule groups instead of at the top of rule groups. This can make some queries easier to understand as it encourages a more natural style of reading.

showNotToggle​

boolean (default false) Click here for demo

Pass true to show the "Not" (aka inversion) toggle switch for each rule group.

showCloneButtons​

boolean (default false) Click here for demo

showLockButtons​

boolean (default false) Click here for demo

Pass true to show the "Lock rule" and "Lock group" buttons. When a rule is locked, all elements within the rule will be disabled (except for the lock button, so the user can unlock it). When a group is locked, all elements within the group header (except the lock button), as well as all child rule/group elements, will be disabled.

resetOnFieldChange​

boolean (default true) Click here for demo with this feature disabled

Pass false to avoid resetting the operator and value when the field changes.

resetOnOperatorChange​

boolean (default false) Click here for demo

Pass true to reset the value when the operator changes.

enableMountQueryChange​

boolean (default true)

Pass false to disable the onQueryChange call on mount of the component which will set the default value.

autoSelectField​

boolean (default true) Click here for demo with this feature disabled

Pass false to automatically add an "empty" option with value "~" and label "------" (see translations.fields.placeholder* to customize) to the fields array as the first element. The empty option will be the initial selection for all new rules. When the empty field option is selected, the operator and value editor components will not display for that rule.

autoSelectOperator​

boolean (default true) Click here for demo with this feature disabled

Pass false to automatically add an "empty" option with value "~" and label "------" (see translations.operators.placeholder* to customize) to the operators array as the first element. The empty option will be the initial selection for all new rules. When the empty operator option is selected, the value editor component will not display for that rule.

addRuleToNewGroups​

boolean (default false) Click here for demo

Pass true to automatically add a rule to new groups. If a query prop is not passed in, a rule will be added to the root group when the component is mounted. If a query prop is passed in with an empty rules array, no rule will be added automatically.

listsAsArrays​

boolean (default false) Click here for demo

Pass true to update rule values that represent lists with proper arrays instead of comma-separated strings. Applies when valueEditorType is "multiselect" and when a rule's operator is "between", "notBetween", "in", or "notIn".

For example, the default behavior for the "between" operator might produce this rule:

{
  "field": "f1",
  "operator": "between",
  "value": "f2,f3",
  "valueSource": "field"
}

When listsAsArrays is true, the rule's value will be an array:

{
  "field": "f1",
  "operator": "between",
  "value": ["f2", "f3"],
  "valueSource": "field"
}

independentCombinators​

boolean (default false) Click here for demo

Pass true to insert an independent combinator selector between each rule/group in a rule group. The combinator selector at the group level will not be rendered.

Visually, this option has a similar effect as the showCombinatorsBetweenRules option, except that each combinator selector is independently controlled. You may find that users take to this configuration more easily, as it can allow them to express queries more like they would in natural language.

caution

When the independentCombinators option is enabled, the query (or defaultQuery) prop must be of type RuleGroupTypeIC instead of the default RuleGroupType. See onQueryChange above, or the Rules and groups section of the TypeScript documentation for more information.

enableDragAndDrop​

boolean (default false) Click here for demo

Pass true to display a drag handle to the left of each group header and rule. Clicking and dragging the handle element allows visual reordering of rules and groups.

caution

react-querybuilder uses react-dnd to enable drag-and-drop features. If your application already uses react-dnd, you should import and render <QueryBuilderWithoutDndProvider /> instead of <QueryBuilder />. They are functionally the same, but the former will rely on your pre-existing DndProvider wrapper while the latter implements its own and will clash with a separate DndProvider higher up in the component tree (the error will typically look like this: "Cannot have two HTML5 backends at the same time.").

disabled​

boolean | number[][] (default false) Click here for demo

Pass true to disable all subcomponents and prevent changes to the query. Pass an array of paths to disable specific rules and/or groups, e.g. disabled={[[0]]} will disable the first rule and its subcomponents but nothing else.

debugMode​

boolean (default false) Click here for demo

Pass true to log debugging information to the console (or the onLog function if provided).

onLog​

(message: any) => void (default console.log)

Captures log messages when debugMode is true.

validator​

QueryValidator Click here for demo

This is a callback function that is executed each time QueryBuilder renders. The return value should be a boolean (true for valid queries, false for invalid) or an object whose keys are the ids of each rule and group in the query tree. If such an object is returned, the values associated to each key should be a boolean (true for valid rules/groups, false for invalid) or an object with a valid boolean property and an optional reasons array. The full object will be passed to each rule and group component, and all sub-components of each rule/group will receive the value associated with the rule's or group's id. See the Validation documentation for more information.