QFilter

Query library designed for advanced filtering, crafted with ❤ using TypeScript and React. ⚛

Table of Contents

• Installation
• Usage
  • Basic Usage
  • Advanced Usage
  • UI Usage
• API
  • QFilterBuilder
  • QFilter
• Utilities
• Type Definitions
• Contributing
• License

Installation

Install the library using the followind commands:

npm

npm i @jehlicot07/qfilter

Usage

Basic Usage

To start using QFilter, import the necessary components and create filters using the QFilterBuilder class:

import { QFilterBuilder } from "@jehlicot07/qfilter";

const users = [
  { name: "Jhael", age: 20, city: "DN" },
  { name: "Jhael", age: 21, city: "Santiago" },
  { name: "Galva", age: 26, city: "SD" },
  { name: "Galva", age: 26, city: "SDE" },
  { name: "Thomas", age: 20, city: "SDN" },
  { name: "Sthifer", age: 25, city: "SDN" },
  { name: "Enmanuel", age: 19, city: "SDO" },
];

const builder = new QFilterBuilder()
  .condition("name", "Contains", "e")
  .and()
  .condition("age", "GreaterThan", 20);

const QFilter = builder.build();
const filteredUsers = QFilter.filter(users);

console.log(filteredUsers);
// Output: [
//   { name: 'Jhael', age: 21, city: 'Santiago' },
//   { name: 'Sthifer', age: 25, city: 'SDN' }
// ]

Advanced Usage

You can use logical operators and groups to create more complex filters:

import { QFilterBuilder, condition, and, or, not, group } from "@jehlicot07/qfilter";

const builder = new QFilterBuilder()
  .condition("name", "Contains", "e")
  .and()
  .group([condition("age", "GreaterThan", 20), or(), not(condition("city", "Equal", "SD"))]);

const QFilter = builder.build();
const filteredUsers = QFilter.filter(users);

console.log(filteredUsers);
/*  
  OUTPUT:
  { name: "Jhael", age: 20, city: "DN" },
  { name: "Jhael", age: 21, city: "Santiago" },
  { name: "Galva", age: 26, city: "SD" },
  { name: "Galva", age: 26, city: "SDE" },
  { name: "Thomas", age: 20, city: "SDN" },
  { name: "Sthifer", age: 25, city: "SDN" },
   */

UI Usage

Integrate QFilter in your React components for a more interactive experience:

/* eslint-disable @typescript-eslint/no-explicit-any */
import QFilterComponent from "@jehlicot07/qfilter";

type User = {
  name: string;
  age: number;
  company?: { name: string; subgroup?: { subname: string } };
  a?: FilterGroup[];
};

const App = () => {
  const users: User[] = [
    {
      name: "jhael",
      age: 20,
      company: {
        name: "FMP",
      },
      a: [],
    },
    {
      name: "Miguel",
      age: 26,
      company: {
        name: "FMP",
        subgroup: {
          subname: "Company 2",
        },
      },
    },
  ];

  return (
    <QFilterComponent
      dataSource={users}
      onFilter={(data) => {
        const result = data.filter(users);
        console.log(result);
      }}
      columns={[
        { label: "Name", value: "name", type: "text" },
        { label: "Company Name", value: "company?.name", type: "text" },
        {
          label: "Age",
          value: "age",
          type: "number",
        },
      ]}
    />
  );
};

export default App;

UI VIEW

API

QFilterBuilder

Method Signature	Params	Description
condition	field: Join<T> operator: OP value: number | string | boolean id: string | number parentId: string | number | null	Adds a comparison filter.
group	filters:Array<GroupCondition<T> | Array<GroupCondition<T>>>	Creates a group of filters.
add	id: string | number filtersToAdd: Array<FiltersType<T>> position: "after" | "before" filtersArr?: Array<FiltersType<T>> | undefined	Adds filters at a specified position.
remove	id: string | number filters?: Array<FiltersType<T>>	Removes filters by ID.
update	id:string | number filter: FiltersType<T> filters?: Array<FiltersType<T>>	Updates a filter by ID.
and		Adds a logical AND operator.
or		Adds a logical OR operator.
not		Adds a logical NOT operator.
build		Builds and returns a QFilter instance.

QFilter

filter(dataSource: T[]): readonly T[]

Applies the filters to the given data source and returns the filtered data.

Utilities for group filter

Method Signature	Description
generateUID()	Generates a random UID.
condition(field, operator, value, id, parentId)	Creates a condition filter.
group(filters)	Creates a group of filters.
and()	Creates a logical AND filter.
or()	Creates a logical OR filter.
not()	Creates a logical NOT filter.

Example

.group([
  condition("age", "GreaterThan", 20),
  or(),
  not(condition("city", "Equal", "SD"), and(), group([condition("age", "GreaterThan", 20)])),
]);

Types Definitions

OP

type OP =
  | "Equals"
  | "NotEquals"
  | "LessThan"
  | "GreaterThan"
  | "GreaterThanOrEqual"
  | "LessThanOrEqual"
  | "Contains"
  | "NotContains"
  | "StartsWith"
  | "NotStartsWith"
  | "EndsWith"
  | "NotEndsWith"
  | ComparisonOperator;

FilterType

type FilterType = "group" | "logicalOperator" | "comparisonOperator";

FilterGroup

type FilterGroup = "(" | ")";

LogicalOperator

type LogicalOperator = "&&" | "||" | "!";

ComparisonOperator

type ComparisonOperator = "===" | "!==" | ">" | "<" | ">=" | "<=";

commonFilterProps<T>

type commonFilterProps<T> = {
  id: string | number;
  parentId?: string | number | null;
  type: FilterType;
  children?: Array<GroupCondition<T>>;
};

FilterLogicalOperator<T>

type FilterLogicalOperator<T> = {
  operator: LogicalOperator;
} & commonFilterProps<T>;

FilterGroupOperator<T>

type FilterGroupOperator<T> = {
  operator: FilterGroup;
} & commonFilterProps<T>;

FilterOperator<T>

type FilterOperator<T> = {
  operator: OP;
  value: string | number | boolean;
  field: Join<T>;
} & commonFilterProps<T>;

FilterBuild<T>

type FilterBuild<T> = FilterGroupOperator<T> | FilterLogicalOperator<T> | FilterOperator<T>;

AddFilterFn<T>

type AddFilterFn<T> = (
  id: string | number,
  field: Join<T>,

  operator: OP,
  value: string | number | boolean,
  filters: Array<FiltersType<T>>,
  parentId: string | number | null
) => Array<FiltersType<T>>;

GroupCondition<T>

type GroupCondition<T> = FilterBuild<T> | AddFilterFn<T>;

FiltersType<T>

type FiltersType<T> =
  | FilterBuild<T>
  | FilterLogicalOperator<T>
  | FilterGroupOperator<T>
  | FilterOperator<T>
  | GroupCondition<T>
  | AddFilterFn<T>;

SelectOption

type SelectOption = {
  label: string;
  value: string | number | boolean;
};

Contributing

Contributions are welcome! Please open an issue or submit a pull request on GitHub.

License

This project is licensed under the MIT License.