Ember Validator

1. Performs validation on ember object.
2. Provides facility to perform validation on submit or focus out.
3. Provides facility to perform validation when user starts typing, based on computed property rather using observer.
4. Returns validation result as promise.
5. Provides facility to return result as regular object rather than promise.
6. Supports nested property validation.

Installation

Please add ember-validator to your package.json:

"devDependencies": {
  ...
  "ember-validator": "1.4.0"
}

By default date validator is enabled in the validator, so you may need moment library. If you want to skip importing moment library then set useDateValidator to false in ember-cli-build.js.

var app = new EmberApp(defaults, {
  emberValidator: {
    useDateValidator: false
  }
});

Installation

• git clone this repository
• yarn install
• bower install

Running

• ember server
• Visit your app at http://localhost:4200.

Running Tests

• yarn run test (Runs ember try:testall to test your addon against multiple Ember versions)
• ember test
• ember test --server

Building

• ember build

For more information on using ember-cli, visit http://www.ember-cli.com/.

Issues or Help?

If you find a bug or need help please open an issue on our Github.

How to use?

Import EmberValidator mixin and use this in any Ember Object (route, controller, service).

import EmberValidator from 'ember-validator';
 
export default Ember.Controller.extend(EmberValidations, {});

If you want to add this mixin in a regular Ember.Object which dont have container support, then use initilizer to reopen EmberValidator and assing container instance to it.

/**
  app/instance-initializers/ember-validator.js
*/
import Ember from 'ember';
import EmberValidator from 'ember-validator';
 
export default {
  name: 'ember-validator-reopen',
  initialize: function(container) {
    EmberValidator.reopen({
      container: container
    });
  }
}
 
Ember.Object.extend(EmberValidator, {});

For older version of Ember. But we suggest not to use this approach.

/**
  app/initializers/ember-validator.js
*/
import Ember from 'ember';
import EmberValidator from 'ember-validator';
 
export default {
  name: 'ember-validator-reopen',
  initialize: function(container) {
    EmberValidator.reopen({
      container: container
    });
  }
}
 
Ember.Object.extend(EmberValidator, {});

EmberValidator exposes two functions to perform validation.

1. validateMap
2. createObjectWithValidator
3. computedValidateMap
4. validate

validateMap

This functions is used to validate any object.

import Ember from 'ember';
import EmberValidator from 'ember-validator';
 
export default Ember.Controller.extend(EmberValidations, {
 
  actions: {
    var obj = Ember.Object.create({
      userName: null,
      password: null
    });
 
    var rules = {
      userName: {
        required: {
          message: "Please enter user name"
        }
      },
 
      password: {
        required: {
          message: "Please enter password"
        }
      }
    };
 
    var promise = this.validateMap({
      model: obj, // Pass the object you want to validate
      validations: rules // Define validation rules in the form of JSON,
    });
 
    promise.then(function() {
      // When no errors or object is valid.
    }).catch(function(result) {
      // When there are errors or object is in valid.
      // result.get('errors') -> Returns all error messages
      // result.get('errors') -> Returns first message
      // result.get('isValid') -> Returns true if the object is valid
      // result.get('isInvalid') -> Returns true if the object is invalid
      // result.get('hasError') -> Returns true if the object has errors
 
      // result.get('userName.errors') -> Returns all error messages related with userName property
      // result.get('userName.errors') -> Returns first message related with userName property
      // result.get('userName.isValid') -> Returns true if userName property is valid
      // result.get('userName.isInvalid') -> Returns true if userName property is invalid
      // result.get('userName.hasError') -> Returns true if userName property has errors
    }).finally(function() {
      // Regardless object is valid or invalid.
    });
  }
 
});

createObjectWithValidator

Create or reopen object with validations. So validation will fired whenever the property value changes. In short triggers validator by computing property change.

Takes 3 arguments.

• model - Object to be validated.
• validations - Validations rules for an object.
• validateOnDirty - Default false. By default validation will happen irrespective of field is dirty or not. Set to true if you want to perform validation only if the field becomes dirty.

For example, if you are defining validation rules for a property called userName for the object called model, then validation result of that property is available in property userNameValidatorResult

model.get('userNameValidatorResult.errors') -> Returns all error messages related with userName property model.get('userNameValidatorResult.errors') -> Returns first message related with userName property model.get('userNameValidatorResult.isValid') -> Returns true if userName property is valid model.get('userNameValidatorResult.isInvalid') -> Returns true if userName property is invalid model.get('userNameValidatorResult.hasError') -> Returns true if userName property has errors

model.get('validatorResultHasError') -> Computed property which returns true if the validation result has any error model.get('validatorResultIsInValid') -> Computed property which returns true if model is not valid model.get('validatorResultIsValid') -> Computed property which returns true if model is valid model.get('validatorResultErrors') -> Computed property which array of all validation errors model.get('validatorResultObjectDirty') -> Computed property which returns true if the object is dirty model.get('validatorResultObjectClean') -> Computed property which returns true if the object is clean

  // app/models/login.js
  import Ember from 'ember';
 
  export default Ember.Object.extend({
    userName: null,
    password: null
  });  
 
  // app/routes/login.js
  import Ember from 'ember';
  import EmberValidator from 'ember-validator';
  import LoginModel from 'app/models/login';
 
  export default Ember.Route.extend(EmberValidations, {
    model: function() {
      var model = LoginModel.create();
      var validations = {
        userName: {
          required: { message: 'Enter username' },
          length: {
            minimum: 4,
            messages: {
              minimum: 'Username is minimum of 4 characters'
            }
          }
        },
        password: {
          required: { message: 'Enter Password' }
        }
      };
 
      return this.createObjectWithValidator(model, validations, true);
    }
  });
 
  // app/templates/login.hbs
  <form {{action "login" on="submit"}}>
    <p style="color:red">{{model.userNameValidatorResult.error}}</p>
    {{input type="text" value=model.userName}}
    <p style="color:red">{{model.passwordValidatorResult.error}}</p>
    {{input type="password" value=model.password}}
    <button type="submit">Login</button>
  </form>
 

computedValidateMap

Same as createObjectWithValidator, but we suggest to use createObjectWithValidator.

  // app/models/login.js
  import Ember from 'ember';
 
  export default Ember.Object.extend({
    userName: null,
    password: null
  });  
 
  // app/routes/login.js
  import Ember from 'ember';
  import EmberValidator from 'ember-validator';
  import LoginModel from 'app/models/login';
 
  export default Ember.Route.extend(EmberValidations, {
    model: function() {
      var model = LoginModel.create();
      var validations = {
        userName: {
          required: { message: 'Enter username' },
          length: {
            minimum: 4,
            messages: {
              minimum: 'Username is minimum of 4 characters'
            }
          }
        },
        password: {
          required: { message: 'Enter Password' }
        }
      };
 
      this.computedValidateMap({
        model: model,
        validations: validations,
        validateOnDirty: true
      });
    }
  });
 
  // app/templates/login.hbs
  <form {{action "login" on="submit"}}>
    <p style="color:red">{{model.userNameValidatorResult.error}}</p>
    {{input type="text" value=model.userName}}
    <p style="color:red">{{model.passwordValidatorResult.error}}</p>
    {{input type="password" value=model.password}}
    <button type="submit">Login</button>
  </form>
 

validate

Use this function if you want to directly validate Ember Object

import Ember from 'ember';
import EmberValidator from 'ember-validator';
 
export default Ember.Controller.extend({
 
  actions: {
    var obj = Ember.Object.create(EmberValidations, { // Don't forget to reopen mixin to add container.
      userName: null,
      password: null
    });
 
    var rules = {
      userName: {
        required: {
          message: "Please enter user name"
        }
      },
 
      password: {
        required: {
          message: "Please enter password"
        }
      }
    };
 
    var promise = obj.validate({
      validations: rules // Define validation rules in the form of JSON,
    });
 
    promise.then(function() {
      // When no errors or object is valid.
    }).catch(function(result) {
      // When there are errors or object is in valid.
    }).finally(function() {
      // Regardless object is valid or invalid.
    });
  }
});

Both validateMap and validate is returning back promise. If you dont want a promise, but only wants the result, then please pass flag noPromise as true

  var result = obj.validate({
    validations: rules,
    noPromise: true
  });
 
  var result = this.validateMap({
    model: obj,
    validations: rules,
    noPromise: true
  });
 
  if (result.get('isValid')) {
    // When object is valid
  } else {
    // When object is invalid
  }
 
  // result.get('errors') -> Returns all error messages
  // result.get('errors') -> Returns first message
  // result.get('isValid') -> Returns true if the object is valid
  // result.get('isInvalid') -> Returns true if the object is invalid
  // result.get('hasError') -> Returns true if the object has errors
 
  // result.get('userName.errors') -> Returns all error messages related with userName property
  // result.get('userName.errors') -> Returns first message related with userName property
  // result.get('userName.isValid') -> Returns true if userName property is valid
  // result.get('userName.isInvalid') -> Returns true if userName property is invalid
  // result.get('userName.hasError') -> Returns true if userName property has errors

Nested Property Validations

Supports to validation of object with an object.

In case of validation of a nested property, if you want to set validation result of the nested property in different parameter then supply 'errorProperty' along with validation rules.

 var validations = {
   'orders.detail': {
     errorProperty: 'orderDetails',
     required: true
   }
 };
 
 var result = this.validateMap({
   model: obj,
   validations: validations,
   noPromise: true
 });
 
 result.get('orderDetails.hasError');

Validators

required

Validate the property has value.

Options

• message - Error message returned when required validation fails.

  required: { message: 'Please enter a value' }
  required: 'Please enter a value'
  required: true

notrequired

Validate the property dont have value.

Options

• message - Error message returned when notrequired validation fails.

  notrequired: { message: 'Value must be empty' }
  notrequired: 'Value must be empty'
  notrequired: true

boolean

Validate the property is boolean and has value true or false.

Options

• required - Validates property is true.
• notrequired - Validates property is false.
• message - Error message returned when validation fails.

messages

If you want to override message of individual rule.

• required - Validates property is true.
• notrequired - Validates property is false.
• boolean - Validates property is boolean.

  boolean: {
    required: true
    message: 'must be true'
  }
 
  boolean: {
    notrequired: true
    messages: {
      boolean: 'must be boolean'
      notrequired: 'must be false'
    }
  }
 
  boolean: 'must be true'
  boolean: true

equals

Validate whether the property equals to the specified value.

Options

• message - Error message returned when equals validation fails.
• accept - The value to be compared.

  equals: {
    message: 'Only myusername is accepted',
    accept: 'myusername'
  }

contains

Validate property with array of values, and the array of values contains/notcontains the property.

Options

• exclude: An array of values that are excluded
• exludeRange: An array of lower and upper bound, and values within this range is excluded.
• include - An array of values that are excluded
• includeRange - An array of lower and upper bound, and values within this range is excluded.
• message - Error message returned when validation fails.

Messages

If you want to override message of individual rule.

• exclude: Error message returned when exclude validation fails.
• exludeRange: Error message returned when exludeRange validation fails.
• include - Error message returned when include validation fails.
• includeRange - Error message returned when includeRange validation fails.

contains: {
  exclude: ['A', 'B', 'C'],
  messages: {
    exclude: 'Please enter valid value'
  }
}
 
contains: {
  exclude: ['A', 'B', 'C'],
  message: 'Please enter valid value'
}
 
contains: {
  excludeRange: [1, 10],
  messages: {
    excludeRange: 'cannot be between 1 and 10'
  }
}
 
contains: {
  include: ['A', 'B', 'C'],
  messages: {
    include: 'Please enter valid value'
  }
}
 
contains: {
  include: ['A', 'B', 'C'],
  message: 'Please enter valid value'
}
 
contains: {
  includeRange: [1, 10],
  messages: {
    includeRange: 'cannot be between 1 and 10'
  }
}

pattern

Validate poperty with passed regular expression

Options

• hasAlphabet - Set to true, to check has atleast one alphabet
• hasUpperCase - Set to true, to check has atleast one upper case alphabet
• hasLowerCase - Set to true, to check has atleast one lower case alphabet
• hasNumber - Set to true, to check has atleast one number
• hasSpecial - Set to true, to check atleast one special character. Supply a string of characters that you want to check or supply your own regex pattern.
• hasNoSpecial - Set to true, to check no special characters
• hasNoSpace - Set to true, to check no spaces
• with - The regular expression to test with
• without - The regular expression to inverse test
• array - Array of regular expression, when you want to validate more than one regex
• message - Error message returned when validation fails.

messages

If you want to override message of individual rule.

• hasAlphabet - Error message returned when hasAlphabet validation fails.
• hasUpperCase - Error message returned when hasUpperCase validation fails.
• hasLowerCase - Error message returned when hasLowerCase validation fails.
• hasNumber - Error message returned when hasNumber validation fails.
• hasSpecial - Error message returned when hasSpecial validation fails.
• hasNoSpecial - Error message returned when hasNoSpecial validation fails.
• hasNoSpace - Error message returned when hasNoSpace validation fails.
• with - Error message returned when with validation fails.
• without - Error message returned when without validation fails.

  pattern: {
    with: /^([a-zA-Z])+$/,
    messages: {
      with: 'Must be alphabets'  
    }
  }
 
  pattern: {
    with: /^([a-zA-Z])+$/,
    message: 'Must be alphabets'  
  }
 
  pattern: {
    without: /^([a-zA-Z])+$/,
    messages: {
      without: 'Must not be alphabets'  
    }
  }
 
  pattern: {
    without: /^([a-zA-Z])+$/,
    message: 'Must not be alphabets'  
  }
 
  pattern: {
    array: [
      {
        with: /^([a-zA-Z])+$/,
        message: 'Must be alphabets'  
      },
      {
        without: /^([a-zA-Z])+$/, // Different expression
        message: 'Must be alphabets' // Message to be displayed
      }
    ]
  }

email

Validate whether the property is email.

Options

• with - The regular expression to test with, if you are not happy with the default email pattern.
• message - Error message returned when email validation fails.

  email: {
    message: "Invalid email"
  }
 
  email: true
  email: 'Invalid email'
 
  email: {
    with: /^(([^<>()\[\]\\.,;:\s@\"]+(\.[^<>()\[\]\\.,;:\s@\"]+)*)|(\".+\"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/
    message: "Invalid email"
  }

ssn

Validate whether the property is ssn. Default pattern of ssn NNN-NN-NNNN. change this by setting with property

Options

• format1: 999-99-9999. Set to true if you want to validate this pattern.
• format2: 999999999. Set to true if you want to validate this pattern.
• format3: 999.99.9999. Set to true if you want to validate this pattern.
• all: Set to true, if you want to validate with all the default formats.
• message - Error message returned when email validation fails.

  ssn: {
    format1: true,
    message: "Invalid ssn"
  }
 
  ssn: {
    all: true,
    message: "Invalid ssn"
  }
 
  ssn: true
  ssn: 'Invalid ssn'

zip

Validate whether the property is valid zip. Default pattern of ssn NNNNN or NNNNN-NNNN. change this by setting with property

Options

• with - The regular expression to test with, if you are not happy with the default zip pattern.
• message - Error message returned when zip validation fails.

  zip: {
    message: "Invalid zip"
  }
 
  zip: true
  zip: 'Invalid zip'

phone

Validate whether the property is valid phone. Default supported phone number pattern are.

Options

• format1: [phone]. Set to true if you want to validate this pattern.
• format2: [phone]. Set to true if you want to validate this pattern.
• format3: [phone]. Set to true if you want to validate this pattern.
• format4: [phone]. Set to true if you want to validate this pattern.
• format5: (999)9999999. Set to true if you want to validate this pattern.
• format6: 999 999 9999. Set to true if you want to validate this pattern.
• format7: 999-999-9999. Set to true if you want to validate this pattern.
• format8: 999.999.9999. Set to true if you want to validate this pattern.
• format9: 9999999999. Set to true if you want to validate this pattern.
• all: Set to true, if you want to validate with all the default formats.
• message: Error message returned when phone validation fails.

  phone: {
    format1: true,
    format5: true,
    message: "Invalid phone"
  }
  // This matches format1 and format4 patterns of phone number
 
  phone: {
    all: true
    message: "Invalid phone"
  }
 
  phone: true
  phone: 'Invalid phone'

length

Validate length of property

Options

• minimum - The minimum length of the value
• maximum - The maximum length of the value
• is - The exact length of the value
• tokenizer - A function that tokenize the string to get length, by default tokenized with ''.
• message - Error message returned when validation fails.

Messages

If you want to override message of individual rule.

• minimum - Error message returned when minimum validation fails.
• maximum - Error message returned when maximum validation fails.
• is - Error message returned when is validation fails.

  length: {
    minimum: 4,
    maximum: 20,
    messages: {
      minimum: 'Must be more than 4 characters',
      maximum: 'Must be less than 20 characters'
    }
  }
 
  length: {
    is: 4,
    messages: {
      is: 'Must be contains 4 characters'
    }
  }
 
  length: {
    is: 4,
    message: 'Must be contains 4 characters'
  }
 
  length: {
    is: 4,
    message: 'Must be contains 4 characters'
    tokenizer: function(value) {
      return value.split(' ');
    }
  }

numeric

Validates property is a number, comma separated numbers also supported. Default pattern of numbers /^\d+(,\d{3})(.\d)?$/ You can change this by setting pattern property of the options. By default maximum allowed decimal length is 12 and maximum allowed fraction length is 2.

Options

• pattern - Default pattern for number /^\d+(,\d{3})(.\d)?$/, set this if you want any other pattern.
• integer - Validates property is a integer
• greaterThan - Validates property is greater than
• greaterThanOrEqualTo - Validates property is greater than or equal to
• equalTo - Validates property is equal to
• notEqualTo - Validates property is not equal to
• lessThan - Validates property is less than
• lessThanOrEqualTo - Validates property is less than or equal to
• odd - Validates property is odd
• even - Validates property is even
• decimal - Validates maximum no of decimal digits. Default allowed digits is 12.
• fraction - Validates maximum no of fraction digits. Default allowed digits is 2.
• range - Validates number falls in the range. This must be an array holding upper and lower limit
• between - Validates number falls between the given range. This must be an array holding upper and lower limit. Difference with range is this validation fails if value is equal to upper or lower limit.
• message - Error message returned when validation fails.

Messages

If you want to override message of individual rule.

• numeric - Error message returned when numeric validation fails.
• integer - Error message returned when integer validation fails.
• greaterThan - Error message returned when greaterThan validation fails.
• greaterThanOrEqualTo - Error message returned when greaterThanOrEqualTo validation fails.
• equalTo - Error message returned when equalTo validation fails.
• notEqualTo - Error message returned when notEqualTo validation fails.
• lessThan - Error message returned when lessThan validation fails.
• lessThanOrEqualTo - Error message returned when lessThanOrEqualTo validation fails.
• odd - Error message returned when odd validation fails.
• even - Error message returned when even validation fails.
• decimal - Error message returned when decimal validation fails.
• fraction - Error message returned when fraction validation fails.
• range - Error message returned when range validation fails.
• between - Error message returned when between validation fails.

  numeric: {
    integer: true,
    messages: {
      integer: 'must be an integer'
    }
  }
 
  numeric: {
    lessThan: 10,
    messages: {
      lessThan: 'must be less than 10'
    }
  }
 
  numeric: {
    greaterThan: "10,000.12",
    decimal: 5,
    fraction: 2,
    messages: {
      greaterThan: 'must be greater than 10,000.12'
      decimal: 'must be max of 5 decimal digits',
      fraction: 'must be max of 2 fraction digits'
    }
  }
 
  numeric: {
    greaterThan: "10,000.12",
    decimal: 5,
    fraction: 2,
    message: 'Valid number'
    messages: {
      greaterThan: 'must be greater than 10,000.12'
    }
  }

date

Perform date validation. Property can be Date object, moment object or string. If the property is string then set format option

Options

• format - Format of the source date, only if property is date in string.
• time - By default time is not allowed while performing validations, set this to true, if you want to validate time also.
• weekend - Validates property is a weekend.
• onlyWeekend - Validates property is a only saturday or sunday.
• before - Validates property is before target date
• beforeSame - Validates property is before or same as target date
• same - Validates property is same as target date
• notSame - Validates property is not same as target date
• after - Validates property is after target date
• afterSame - Validates property is after or same as target date
• message - Error message returned when validation fails.

The below two are options for same, before, after, beforeSame and afterSame

• target - Date to be compared with. This can be date object, moment object or string. If the property is string then set format option.
• format - Format of target date, if it is string.

Messages

If you want to override message of individual rule.

• date - Error message to be displayed if date is not valid.
• weekend - Error message returned when weekend validation fails.
• onlyWeekend - Error message returned when onlyWeekend validation fails.
• before - Error message returned when before validation fails.
• beforeSame - Error message returned when beforeSame validation fails.
• same - Error message returned when same validation fails.
• notSame - Error message returned when notSame validation fails.
• after - Error message returned when after validation fails.
• afterSame - Error message returned when afterSame validation fails.

  date: {
    weekend: true,
    messages: {
      weekend: 'must not be weekend'
    }
  }
 
// If property date is 'Nov/01/2015'
  date: {
    format: 'MMM/DD/YYYY',
    before: {
      target: 'Oct/31/2015',
      format: 'MMM/DD/YYYY'
    },
    afterSame: {
      target: new Date()
    },
    messages: {
      before: 'date must be before Oct/31/2015',
      afterSame: 'date must be after new Date()'
    }
  }

Conditional Validators

In some cases we may want to execute the function only if certain conditions are satisfied. Please use if and unless options in validation rules.

• if - Validator will be executed only if the supplied call back returns true. This can be a function or a boolean.
• unless - Validator will be executed only if the supplied call back returns false. This can be a function or a boolean.

  userName: {
    length: {
      'if': function(model, property) {
        return true;
      }
    }
  }
 
  password: {
    numeric: {
      unless: function(model, property) {
        return false;
      }
    }
  }

Conditional validators are also added in property level, so it wont validate any validators defined for the property.

  userName: {
    'if': function(model, property) {
      return true;
    },
    length: {
 
    }
  }
 
  password: {
    unless: function(model, property) {
      return false;
    },
    numeric: {
 
    }
  }

Custom Validators

You can place your custom validators into my-app/app/validators/<name>:

  /**
    my-app/app/validators/myvalidator.js
  */
  import Validator from 'ember-validator/validators/validator';
 
  export default Validator.extend({
     perform: function() {
       // Do your validation login here.
     }
  });
 
  userName: {
    myvalidator: {
      ...
    }
  }

Custom Inline Validators

If you want to create validators on the fly then,

import { inlineValidator } from 'ember-validator';
 
{
  userName: {
    custom: inlineValidator(function(model, property) {
      return 'Error message';
    })
  }
}

References

1. Dockyard ember-validations
2. Daniel Kuczewski ember-validations

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