Table of Contents

Config format
- Basic config
- Sections

Config format

Has 7 sections:

{conjunctions, operators, widgets, types, funcs, settings, fields}

Each section is described below.

Usually it’s enough to just reuse basic config, provide your own fields and maybe change some settings.
Optionally you can override some options in basic config or add your own types/widgets/operators (or even conjunctions like XOR or NOR).

There are functions for building query string: formatConj, formatValue, formatOp, formatField, formatFunc which are used for QbUtils.queryString().
They have common param isForDisplay - false by default, true will be used for (QbUtils.queryString(immutableTree, config, true) (see 3rd param true).
Also there are similar mongoConj, mongoFormatOp, mongoFormatValue, mongoFunc for building MongoDb query with QbUtils.mongodbFormat().
And sqlFormatConj, sqlFormatOp, sqlFormatValue, sqlFormatReverse, sqlFunc for building SQL where query with QbUtils.sqlFormat().
And jsonLogic for building JsonLogic with QbUtils.jsonLogicFormat().

💡	Example: `demo config`

Basic config

Use BasicConfig for simple vanilla UI
Use AntdConfig for more advanced UI with AntDesign widgets
Use MaterialConfig for Material-UI widgets

import {BasicConfig} from 'react-awesome-query-builder';
import AntdConfig from 'react-awesome-query-builder/lib/config/antd';
import MaterialConfig from 'react-awesome-query-builder/lib/config/material';
const InitialConfig = BasicConfig; // or AntdConfig or MaterialConfig

const myConfig = {
  ...InitialConfig, // reuse basic config

  fields: {
    stock: {
        label: 'In stock',
        type: 'boolean',
    },
    // ... my other fields
  }
};

What is in basic config?

const {
    conjunctions: {
        AND,
        OR
    },
    operators: {
        equal,
        not_equal,
        less,
        less_or_equal,
        greater,
        greater_or_equal,
        like,
        not_like,
        starts_with,
        ends_with,
        between,
        not_between,
        is_empty,
        is_not_empty,
        select_equals, // like `equal`, but for select
        select_not_equals,
        select_any_in,
        select_not_any_in,
        multiselect_equals, // like `equal`, but for multiselect
        multiselect_not_equals,
        proximity, // complex operator with options
    },
    widgets: {
      text,
      textarea,
      number,
      slider,
      rangeslider, // missing in `BasicConfig`
      select,
      multiselect,
      treeselect, // missing in `BasicConfig` and in `MaterialConfig`
      treemultiselect, // missing in `BasicConfig` and in `MaterialConfig`
      date,
      time,
      datetime,
      boolean,
      field, // to compare field with another field of same type
      func, // to compare field with result of function
    },
    types: {
      text,
      number,
      date,
      time,
      datetime,
      select,
      multiselect,
      treeselect,
      treemultiselect,
      boolean,
    },
    settings
} = AntdConfig;

Sections

config.fields

Example:

{
  // simple
  qty: {
    type: 'number',
    label: 'Quantity',
    fieldSettings: {
      min: 0,
      max: 100,
    }
  },
  // complex
  user: {
    type: '!struct', // special keyword for comlex fields
    label: 'User',
    subfields: {
      // subfields of complex field
      name: {
        type: 'text',
        label: 'Name',
        label2: 'User name', //optional, see below
        fieldSettings: {
          validateValue: (val, _fieldSettings) => (val.length <= 20),
        }
      },
    },
  },
  ...
}

key	required	default	meaning
`type`	+		One of types described in config.types or `!struct`/`!group` for complex field (use `!struct` for objects, `!group` for arrays)
`mode`			For `!group` type, values are: `some`/`array` `some` is light mode (default), at least one subrule should match (for export elemMatch will be used in MongoDb, some in JsonLogic) `array` is extended mode, user can choose one of group operators (`some`/`all`/`none`/`count >/</==/…`)
`subfields`	+ for `!struct`/`!group` type		Config for subfields of complex field (multiple nesting is supported)
`label`	+		Label to be displayed in field list (If not specified, fields’s key will be used instead)
`label2`			Can be optionally specified for nested fields. By default, if nested field is selected (eg. `name` of `user` in example above), `<FieldDropdown>` component will show `name`. Just `name` can be confusing, so can be overriden by setting `label2` to something like `User name`. As alternative, you can use `<FieldCascader>` component which handles nested fields right. See `renderField` in settings.
`tooltip`			Optional tooltip to be displayed in field list by hovering on item
`fieldSettings`			Settings for widgets, will be passed as props. Example: `{min: 1, max: 10}` Available settings for Number and Slider widgets: `min`, `max`, `step`. Slider also supports `marks` (example: `{ 0: "0%", 100: "100%" }`). Available settings for date/time widgets: `timeFormat`, `dateFormat`, `valueFormat`, `use12Hours`, `useKeyboard`. Available settings for text widget: `maxLength`, `maxRows`.
`fieldSettings.listValues`	+ for (multi)select, tree (multi)select		List of values for (multi)select widget. Example for select/multiselect: `[{value: 'yellow', title: 'Yellow'}, {value: 'green', title: 'Green'}]` (or alternatively `{ yellow: 'Yellow', green: 'Green' }`) Example for treeselect/treemultiselect: `[{value: 'warm', title: 'Warm colors'}, {value: 'red', title: 'Red', parent: 'warm'}, {value: 'orange', title: 'Orange', parent: 'warm'}]` (or alternatively `[{value: 'warm', title: 'Warm colors', children: [ {value: 'red', title: 'Red'}, {value: 'orange', title: 'Orange'} ]}]`)
`fieldSettings.validateValue`			Function to validate entered value. Return true/false or error string / null. `(mixed val, Object fieldSettings) ⇒ boolean \| string \| null`
`fieldSettings.allowCustomValues`	- for `multiselect` widget	false	If true, user can provide own options in multiselect, otherwise they will be limited to `listValues`
`fieldSettings.treeExpandAll`	- for `treeselect/treemultiselect` widgets	false	Whether to expand all nodes by default
`fieldSettings.treeSelectOnlyLeafs`	- for `treeselect` widget	true	Can select only leafs or any node?
`defaultValue`			Default value
`preferWidgets`			See usecase at `examples/demo` for `slider` field. Its type is `number`. There are 3 widgets defined for number type: `number`, `slider`, `rangeslider`. So setting `preferWidgets: ['slider', 'rangeslider']` will force rendering slider, and setting `preferWidgets: ['number']` will render number input.
`operators, defaultOperator, widgets, valueSources`			You can override config of corresponding type (see below at section config.types)
`mainWidgetProps`			Shorthand for `widgets.<main>.widgetProps`
`excludeOperators`			Can exclude some operators. Example: `['proximity']` for `text` type
`funcs`			If comparing with funcs is enabled for this field (`valueSources` contains `'func'`), you can also limit list of funcs to be compared (by default will be available all funcs from config.funcs with `returnType` matching field’s `type`)
`hideForSelect`		false	If true, field will appear only at right side (when you compare field with another field)
`hideForCompare`		false	If true, field will appear only at left side
`conjunctions, showNot`			For type=`!group` with mode=`array`. Example: `conjunctions: ['AND'], showNot: false`

config.settings

Example:

import ru_RU from 'antd/lib/locale-provider/ru_RU';
import { ruRU } from '@material-ui/core/locale';
import AntdWidgets from 'react-awesome-query-builder/lib/components/widgets/antd';
import {Widgets} from 'react-awesome-query-builder';
const { FieldCascader, FieldDropdown, FieldTreeSelect } = AntdWidgets;

{
  valueSourcesInfo: {
    value: {
      label: "Value"
    },
    field: {
      label: "Field",
      widget: "field",
    },
    func: {
        label: "Function",
        widget: "func",
    }
  },
  locale: {
      moment: 'ru',
      antd: ru_RU,
      material: ruRU,
  },
  renderField: (props) => <FieldCascader {...props} />,
  renderOperator: (props) => <FieldDropdown {...props} />,
  renderFunc: (props) => <FieldDropdown {...props} />,
  canReorder: true,
  canRegroup: true,
  maxNesting: 10,
  showLabels: false,
  showNot: true,
  setOpOnChangeField: ['keep', 'default'],
  customFieldSelectProps: {
      showSearch: true
  },
  ...
}

Behaviour settings:

key	default	meaning
`valueSourcesInfo`	`{value: {}}`	By default fields can be compared with values. If you want to enable comparing with another fields, add `field` like in example above. If you want to enable comparing with result of function, add `func` like in example above.
`showErrorMessage`	false	Show error message in QueryBuilder if validateValue() in field config returns false
`canReorder`	true	Activate reordering support for rules and groups of rules?
`canRegroup`	true	Allow move rules (or groups) in/out groups during reorder? False - allow "safe" reorder, means only reorder at same level
`showNot`	true	Show `NOT` together with `AND`/`OR`?
`maxNumberOfRules`		Maximum number of rules which can be added to the query builder
`maxNesting`		Max nesting for rule groups. Set `1` if you don’t want to use groups at all. This will remove also `Add group` button.
`canLeaveEmptyGroup`	true	Leave empty group after deletion or add 1 clean rule immediately?
`immutableGroupsMode`	false	Not allow to add/delete rules or groups, but allow change
`immutableFieldsMode`	false	Not allow to change fields
`immutableOpsMode`	false	Not allow to change operators
`immutableValuesMode`	false	Not allow to change values
`clearValueOnChangeField`	false	Clear value on field change? false - if prev & next fields have same type (widget), keep
`clearValueOnChangeOp`	false	Clear value on operator change?
`setOpOnChangeField`	`['keep', 'default']`	Strategies for selecting operator for new field (used by order until success): `default` (default if present), `keep` (keep prev from last field), `first`, `none`
`canCompareFieldWithField`		For `<ValueFieldWidget>` - Function for building right list of fields to compare field with field `(string leftField, Object leftFieldConfig, string rightField, Object rightFieldConfig) ⇒ boolean` For type == `select`/`multiselect` you can optionally check `listValues`

💡	For fully read-only mode use these settings:

immutableGroupsMode: true,
immutableFieldsMode: true,
immutableOpsMode: true,
immutableValuesMode: true,
canReorder: false,
canRegroup: false,

Render settings:

key	default	meaning
`renderSize`	`small`	Size of AntDesign components - `small` or `large`
`renderField`	`(props) ⇒ <FieldSelect {…props} />`	Render fields list Available widgets for AntDesign: `FieldSelect`, `FieldDropdown`, `FieldCascader`, `FieldTreeSelect`
`renderOperator`	`(props) ⇒ <FieldSelect {…props} />`	Render operators list Available widgets for AntDesign: `FieldSelect`, `FieldDropdown`
`renderFunc`	`(props) ⇒ <FieldSelect {…props} />`	Render functions list Available widgets for AntDesign: `FieldSelect`, `FieldDropdown`
`renderConjs, renderButton, renderButtonGroup, renderProvider, renderValueSources, renderConfirm, useConfirm, renderRuleError`		Other internal render functions you can override if using another UI framework (example)
`showLabels`	false	Show labels above all fields?
`maxLabelsLength`	100	To shorten long labels of fields/values (by length, i.e. number of chars)
`dropdownPlacement`	`bottomLeft`	Placement of antdesign’s dropdown pop-up menu
`customFieldSelectProps`	`{}`	You can pass props to `Select` field widget. Example: `{showSearch: true}`
`groupActionsPosition`	`topRight`	You can change the position of the group actions to the following: `topLeft, topCenter, topRight, bottomLeft, bottomCenter, bottomRight`
`renderBeforeWidget`
`renderAfterWidget`
`renderBeforeActions`
`renderAfterActions`
`defaultSliderWidth`	"200px"	Width for slider

Other settings:

key	default	meaning
`locale.moment`	"en"	Locale (string or array of strings) used for moment
`locale.antd`	`en_US`	Locale object used for AntDesign widgets
`locale.material`	`enUS`	Locale object used for MaterialUI widgets
`theme.material`	{}	Options for createMuiTheme
`formatReverse`		Function for formatting query string, used to format rule with reverse operator which haven’t `formatOp`. `(string q, string operator, string reversedOp, Object operatorDefinition, Object revOperatorDefinition, bool isForDisplay) ⇒ string` `q` - already formatted rule for opposite operator (which have `formatOp`) return smth like `"NOT(" + q + ")"`
`formatField`		Function for formatting query string, used to format field `(string field, Array parts, string label2, Object fieldDefinition, Object config, bool isForDisplay) ⇒ string` `parts` - list of fields’s keys for struct field `label2` - field’s `label2` OR parts joined by `fieldSeparatorDisplay` Default impl will just return `field` (or `label2` for `isForDisplay==true`)
`formatAggr`		Function for formatting query string, used to format aggregation rule (like `SOME OF Cars HAVE Year > 2010`) `(string whereStr, string aggrField, string operator, mixed value, string valueSrc, string valueType, Object operatorDefinition, Object operatorOptions, bool isForDisplay, Object aggrFieldDef) ⇒ string` `whereStr` - formatted string representing condition for items (eg. `Year > 2010` in example) `aggrField` - aggregation field (eg. `Cars` in example) `operator` - can be `some`/`all`/`none` (with cardinality 0) or `equal`/`less`/`between`/.. (applied to count of items) `value` - for operators with cardinality 1/2 it is value for comparing with count of items
`fieldSeparator`	`.`	Separator for struct fields.
`fieldSeparatorDisplay`	`.`	Separator for struct fields in UI.

Localization:

key	default
`valueLabel`	Value
`valuePlaceholder`	Value
`fieldLabel`	Field
`operatorLabel`	Operator
`funcLabel`	Function
`fieldPlaceholder`	Select field
`funcPlaceholder`	Select function
`operatorPlaceholder`	Select operator
`deleteLabel`	`null`
`delGroupLabel`	`null`
`addGroupLabel`	Add group
`addRuleLabel`	Add rule
`addSubRuleLabel`	Add sub rule
`notLabel`	Not
`valueSourcesPopupTitle`	Select value source
`removeRuleConfirmOptions`	If you want to ask confirmation of removing non-empty rule/group, add these options. List of all valid properties is here
`removeRuleConfirmOptions.title`	Are you sure delete this rule?
`removeRuleConfirmOptions.okText`	Yes
`removeRuleConfirmOptions.okType`	`danger`
`removeGroupConfirmOptions.title`	Are you sure delete this group?
`removeGroupConfirmOptions.okText`	Yes
`removeGroupConfirmOptions.okType`	`danger`

config.conjunctions

{
  AND: {
    label: 'And',
    formatConj: (children, _conj, not) => ( (not ? 'NOT ' : '') + '(' + children.join(' || ') + ')' ),
    reversedConj: 'OR',
    mongoConj: '$and',
  },
  OR: {...},
}

where AND and OR - available conjuctions (logical operators). You can add NOR if you want.

key	required	meaning
`label`	+	Label to be displayed in conjunctions swicther
`formatConj`	+	Function for formatting query, used to join rules into group with conjunction. `(Immultable.List children, string conj, bool not, bool isForDisplay) ⇒ string` `children` - list of already formatted queries (strings) to be joined with conjuction
`mongoConj`	+ for MongoDB format	Name of logical operator for MongoDb
`sqlFormatConj`	+ for SQL format	See `formatConj`
`reversedConj`		Opposite logical operator. Can be used to optimize `!(A OR B)` to `!A && !B` (done for MongoDB format)

config.operators

{
  equal: {
    label: 'equals',
    reversedOp: 'not_equal',
    labelForFormat: '==',
    cardinality: 1,
    formatOp: (field, _op, value, _valueSrc, _valueType, opDef) => `${field} ${opDef.labelForFormat} ${value}`,
    mongoFormatOp: (field, op, value) => ({ [field]: { '$eq': value } }),
  },
  ..
}

key	required	default	meaning
`label`	+		Label to be displayed in operators select component
`reversedOp`	+		Opposite operator.
`cardinality`		1	Number of right operands (1 for binary, 2 for `between`)
`formatOp`	+		Function for formatting query string, used to join operands into rule. `(string field, string op, mixed value, string valueSrc, string valueType, Object opDef, Object operatorOptions, bool isForDisplay) ⇒ string` `value` - string (already formatted value) for `cardinality==1` -or- `Immutable.List` of strings for `cardinality>1`
`labelForFormat`			If `formatOp` is missing, `labelForFormat` will be used to join operands when building query string
`mongoFormatOp`	+ for MongoDB format		Function for formatting MongoDb expression, used to join operands into rule. `(string field, string op, mixed value, bool useExpr, string valueSrc, string valueType, Object opDef, Object operatorOptions) ⇒ object` `value` - mixed for `cardinality==1` -or- `Array` for `cardinality>2` `useExpr` - true if resulted expression will be wrapped in `{'$expr': {…}}` (used only if you compare field with another field or function) (you need to use aggregation operators in this case, like $eq (aggregation) instead of $eq)
`sqlOp`	+ for SQL format		Operator name in SQL
`sqlFormatOp`	- for SQL format		Function for advanced formatting SQL WHERE query if just `sqlOp` is not enough. `(string field, string op, mixed value, string valueSrc, string valueType, Object opDef, Object operatorOptions) ⇒ object` `value` - mixed for `cardinality==1` -or- `Array` for `cardinality>2`
`jsonLogic`	+ for JsonLogic		String (eg. `'<'`) -or- function for advanced formatting `(object field, string op, mixed value, Object opDef, Object operatorOptions) ⇒ object` `value` - mixed for `cardinality==1` -or- `Array` for `cardinality>2` `field` - already formatted `{"var": <some field>}`
`valueLabels`	+ for `cardinality==2`		Labels to be displayed on top of 2 values widgets if `config.settings.showLabels` is true Example: `['Value from', {label: 'Value to', placeholder: 'Enter value to'}]`
`textSeparators`	+ for `cardinality==2`		Labels to be displayed before each 2 values widgets Example: `[null, 'and']`
`options`			Special for `proximity` operator (see demo for details)

ℹ️	There is also special `proximity` operator, its options are rendered with `<ProximityOperator>`. import {Operators: {ProximityOperator}} from 'react-awesome-query-builder'; See `examples/demo`

config.widgets

import {Widgets} from 'react-awesome-query-builder';
import AntdWidgets from 'react-awesome-query-builder/lib/components/widgets/antd';
import MaterialWidgets from 'react-awesome-query-builder/lib/components/widgets/material';
const {
    TextWidget,
    NumberWidget,
    ...
} = AntdWidgets;
const {
    VanillaTextWidget,
    VanillaNumberWidget,
    ...
} = Widgets;
const {
    MaterialTextWidget,
    MaterialNumberWidget,
    ...
} = MaterialWidgets;

{
  text: {
    type: 'text',
    valueSrc: 'value',
    factory: (props) => <TextWidget {...props} />,
    formatValue: (val, _fieldDef, _wgtDef, isForDisplay) => (isForDisplay ? '"' + val + '"' : JSON.stringify(val)),
    mongoFormatValue: (val, _fieldDef, _wgtDef) => (val),
    // Options:
    valueLabel: "Text",
    valuePlaceholder: "Enter text",
    // Custom props (https://ant.design/components/input/):
    customProps: {
        maxLength: 3
    },
  },
  ..
},

key	required	default	meaning
`type`	+		One of types described in config.types
`factory`	+		React function component
`formatValue`	+		Function for formatting widget’s value in query string. `(mixed val, Object fieldDef, Object wgtDef, bool isForDisplay, string op, Object opDef) ⇒ string`
`mongoFormatValue`	- for MongoDB format	v ⇒ v	Function for formatting widget’s value in MongoDb query. `(mixed val, Object fieldDef, Object wgtDef, string op, Object opDef) ⇒ any`
`sqlFormatValue`	- for SQL format	`v ⇒ SqlString.escape(v)`	Function for formatting widget’s value in SQL WHERE query. `(mixed val, Object fieldDef, Object wgtDef, string op, Object opDef) ⇒ string`
`jsonLogic`	- for JsonLogic	v ⇒ v	Function for formatting widget’s value for JsonLogic. `(mixed val, Object fieldDef, Object wgtDef, string op, Object opDef) ⇒ any`
`valueLabel`		`config.settings.valueLabel`	Common option, text to be placed on top of widget if `config.settings.showLabels` is true
`valuePlaceholder`		`config.settings.valuePlaceholder`	Common option, placeholder text to be shown in widget for empty value
`maxLength`			Option for `<TextWidget>`, `<TextAreaWidget>`
`maxRows`			Option for `<TextAreaWidget>`
`timeFormat`		`HH:mm:ss`	Option for `<TimeWidget>`, `<DateTimeWidget>` to display time in widget. Example: `'HH:mm'`
`use12Hours`		`false`	Option for `<TimeWidget>`
`useKeyboard`		`true`	Option for Material-UI date/time pickers, `false` disables input with keyboard, only picker use is allowed
`dateFormat`		`YYYY-MM-DD`	Option for `<DateWidget>`, `<DateTimeWidget>` to display date in widget. Example: `YYYY-MM-DD`
`valueFormat`			Option for `<TimeWidget>`, `<DateWidget>`, `<DateTimeWidget>` to prepare string representation of value to be stored. Example: `YYYY-MM-DD HH:mm`
`labelYes, labelNo`			Option for `<BooleanWidget>`
`customProps`			You can pass any props directly to widget with `customProps`. For example enable search for `<Select>` widget: `customProps: {showSearch: true}`

ℹ️	There is special `field` widget, rendered by `<ValueFieldWidget>`. It can be used to compare field with another field of same type. To enable this feature set `valueSources` of type to `['value', 'field']` (see below in config.types).

ℹ️	There is special `func` widget, rendered by `<FuncWidget>`. It can be used to compare field with result of function (see config.funcs). To enable this feature set `valueSources` of type to `['value', 'func']` (see below in config.types).

config.types

{
  time: {
      valueSources: ['value', 'field', 'func'],
      defaultOperator: 'equal',
      widgets: {
          time: {
              operators: ['equal', 'between'],
              widgetProps: {
                  valuePlaceholder: "Time",
                  timeFormat: 'h:mm:ss A',
                  use12Hours: true,
              },
              opProps: {
                  between: {
                      valueLabels: ['Time from', 'Time to'],
                  },
              },
          },
      },
  },
  ..
}

key	required	default	meaning
`valueSources`		keys of `valueSourcesInfo` at config.settings	Array with values `'value'`, `'field'`, `'func'`. If `'value'` is included, you can compare field with values. If `'field'` is included, you can compare field with another field of same type. If `'func'` is included, you can compare field with result of function (see config.funcs).
`defaultOperator`			If specified, it will be auto selected when user selects field
`widgets.*`	+		Available widgets for current type and their config. Normally there is only 1 widget per type. But see type `number` at `examples/demo` - it has 3 widgets `number`, `slider`, `rangeslider`. Or see type `select` - it has widget `select` for operator `=` and widget `multiselect` for operator `IN`.
`widgets.<widget>.operators`			List of operators for widget, described in config.operators
`widgets.<widget>.widgetProps`			Can be used to override config of corresponding widget specified in config.widgets. Example: `{timeFormat: 'h:mm:ss A'}` for time field with AM/PM.
`widgets.<widget>.opProps.<operator>`			Can be used to override config of operator for widget. Example: `opProps: { between: {valueLabels: ['Time from', 'Time to']} }` for building range of times.

config.funcs

{
  lower: {
    label: 'Lowercase',
    sqlFunc: 'LOWER',
    mongoFunc: '$toLower',
    returnType: 'text',
    args: {
      str: {
        type: 'text',
        valueSources: ['value', 'field'],
      }
    }
  },
  ..
}

key	required	default	meaning
`returnType`	+		One of types described in config.types
`label`		same as func key	Label to be displayed in functions list
`formatFunc`		Example result: for `isForDisplay==false` - `FUNC(val1, val2)`, for `isForDisplay==true` - `FUNC(arg1: val1, arg2: val2)`	Function for formatting func expression in query rule. `(Object args, bool isForDisplay) ⇒ string` where `args` is object `{<arg name> : <arg value>}`
`sqlFunc`	- for SQL format	same as func key	Func name in SQL
`sqlFormatFunc`	- for SQL format		Can be used instead of `sqlFunc`. Function with 1 param - args object `{<arg name> : <arg value>}`, should return formatted function expression string. Example: SUM function can be formatted with `({a, b}) ⇒ a + " + " + b`
`mongoFunc`	- for MongoDB format	same as func key	Func name in Mongo
`mongoArgsAsObject`		false	Some functions like $rtrim supports named args, other ones like $slice takes args as array
`mongoFormatFunc`	- for MongoDB format		Can be used instead of `mongoFunc`. Function with 1 param - args object `{<arg name> : <arg value>}`, should return formatted function expression object.
`jsonLogic`	+ for JsonLogic		String (function name) or function with 1 param - args object `{<arg name> : <arg value>}`, should return formatted function expression for JsonLogic.
`jsonLogicImport`			Function to convert given JsonLogic expression to array of arguments of current function. If given expression can’t be parsed into current function, throw an error.
`args.*`			Arguments of function. Config is almost same as for simple fields
`args.<arg>.label`		arg’s key	Label to be displayed in arg’s label or placeholder (if `config.settings.showLabels` is false)
`args.<arg>.type`	+		One of types described in config.types
`args.<arg>.valueSources`		keys of `valueSourcesInfo` at config.settings	Array with values `'value'`, `'field'`, `'func'`, `'const'`. `const` requires `defaultValue`
`args.<arg>.defaultValue`			Default value
`args.<arg>.listValues`	+ for (multi)select, tree (multi)select widgets		List of values for Select widget. Example for select/multiselect: `[{value: 'yellow', title: 'Yellow'}, {value: 'green', title: 'Green'}]` Example for treeselect/treemultiselect: `[{value: 'warm', title: 'Warm colors'}, {value: 'red', title: 'Red', parent: 'warm'}, {value: 'orange', title: 'Orange', parent: 'warm'}]`
`args.<arg>.fieldSettings`			Settings for widgets, will be passed as props. Example: `{min: 1, max: 10}`
`args.<arg>.isOptional`		false	Last args can be optional
`renderBrackets`		`['(', ')']`	Can render custom function brackets in UI (or not render).
`renderSeps`		`[', ']`	Can render custom arguments separators in UI (other than `,`).

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CONFIG.adoc

CONFIG.adoc

Config format

Basic config

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config.fields

config.settings

config.conjunctions

config.operators

config.widgets

config.types

config.funcs

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Config format

Basic config

Sections

config.fields

config.settings

config.conjunctions

config.operators

config.widgets

config.types

config.funcs