1.1.0 • Published 8 years ago

queryl v1.1.0

Weekly downloads
135
License
MIT
Repository
github
Last release
8 years ago

queryl

Query language to perform complex object searches.

npm version dependencies Build Status Build status

Description

Queryl allows to to build complex queries to match JavaScript objects. This can be useful to:

  • Search collections of objects (even heterogeneus).
  • Validate objects.
  • Assert properties of an object for testing purposes.

Installation

Install queryl by running:

$ npm install --save queryl

Documentation

queryl.match(query, object) ⇒ Boolean

Kind: static method of queryl
Summary: Query an object
Returns: Boolean - whether it matches or not
Access: public

ParamTypeDescription
queryObjectquery
objectObjectobject

Example

queryl.match({
  $or: {
    $equal: {
      foo: 'bar'
    },
    $and: {
      $not: {
        $match: {
          foo: /^baz/
        }
      },
      $gt: {
        bar: 3
      }
    }
  }
}, {
  foo: 'hello world',
  bar: 5
});
> true

Operations

operations.$and()

Kind: static method of operations
Properties

NameTypeDescription
$andfunctionlogical conjunction

Example

queryl.match({
  $and: {
    $equal: {
      foo: 'bar'
    },
    $match: {
      bar: /^hello/
    }
  }
}, {
  foo: 'bar',
  bar: 'hello world'
});
> true

operations.$or()

Kind: static method of operations
Properties

NameTypeDescription
$orfunctionlogical disjunction

Example

queryl.match({
  $or: {
    $equal: {
      foo: 'bar'
    },
    $match: {
      bar: /^hello/
    }
  }
}, {
  foo: 'bar',
  bar: 'hey there'
});
> true

operations.$not()

Kind: static method of operations
Properties

NameTypeDescription
$notfunctionlogical negation

Example

queryl.match({
  $not: {
    $equal: {
      foo: 'bar'
    }
  }
}, {
  foo: 'baz'
});
> true

operations.$equal()

This operation supports deep equality.

Kind: static method of operations
Properties

NameTypeDescription
$equalfunctionequality

Example

queryl.match({
  $equal: {
    foo: 'bar'
  }
}, {
  foo: 'bar'
});
> true

operations.$contain()

This operation supports deep equality.

Kind: static method of operations
Properties

NameTypeDescription
$containfunctioncollection include

Example

queryl.match({
  $contain: {
    foo: 1
  }
}, {
  foo: [ 1, 2, 3 ]
});
> true

operations.$match()

Kind: static method of operations
Properties

NameTypeDescription
$matchfunctionRegExp match

Example

queryl.match({
  $match: {
    foo: /^hello/
  }
}, {
  foo: 'hello world'
});
> true

operations.$gt()

Kind: static method of operations
Properties

NameTypeDescription
$gtfunctiongreater than

Example

queryl.match({
  $gt: {
    foo: 5
  }
}, {
  foo: 6
});
> true

operations.$lt()

Kind: static method of operations
Properties

NameTypeDescription
$ltfunctionless than

Example

queryl.match({
  $lt: {
    foo: 5
  }
}, {
  foo: 4
});
> true

Support

If you're having any problem, please raise an issue on GitHub and I'll be happy to help.

Tests

Run the test suite by doing:

$ gulp test

Contribute

Before submitting a PR, please make sure that you include tests, and that jshint runs without any warning:

$ gulp lint

License

The project is licensed under the MIT license.