Validate only when value is changing












1














I'm using Sequelize 4.38.0 and have the custom validation for email on the User model.



The way the custom validation is constructed (see below), I need to skip the validation if the email property hasn't changed. Otherwise it halts the whole update operation (as it thinks the email address is already taken).



How can I run validation for a property only when the value is changing?



email: {
type: DataTypes.STRING,
allowNull: false,
validate: {
isEmail: {
msg: 'Wrong email format',
},
notEmpty: {
msg: 'Email has to be present',
},
isUnique: function(value, next) {
User.find({
where: {
email: value,
organizationId: this.organizationId,
},
})
.then(function(result) {
if (result === null) {
return next()
} else {
return next(' Email address already in use')
}
})
.catch(err => {
return next()
})
},
},
},









share|improve this question
























  • what do you mean by "it's run all the time" ?
    – mihai
    Nov 13 at 19:52










  • @mihai I've updated the description. The custom email validation is run on every update operation of an user instance. And I wonder if it's possible to skip that custom validation when the email value isn't changing?
    – Fellow Stranger
    Nov 13 at 21:35
















1














I'm using Sequelize 4.38.0 and have the custom validation for email on the User model.



The way the custom validation is constructed (see below), I need to skip the validation if the email property hasn't changed. Otherwise it halts the whole update operation (as it thinks the email address is already taken).



How can I run validation for a property only when the value is changing?



email: {
type: DataTypes.STRING,
allowNull: false,
validate: {
isEmail: {
msg: 'Wrong email format',
},
notEmpty: {
msg: 'Email has to be present',
},
isUnique: function(value, next) {
User.find({
where: {
email: value,
organizationId: this.organizationId,
},
})
.then(function(result) {
if (result === null) {
return next()
} else {
return next(' Email address already in use')
}
})
.catch(err => {
return next()
})
},
},
},









share|improve this question
























  • what do you mean by "it's run all the time" ?
    – mihai
    Nov 13 at 19:52










  • @mihai I've updated the description. The custom email validation is run on every update operation of an user instance. And I wonder if it's possible to skip that custom validation when the email value isn't changing?
    – Fellow Stranger
    Nov 13 at 21:35














1












1








1







I'm using Sequelize 4.38.0 and have the custom validation for email on the User model.



The way the custom validation is constructed (see below), I need to skip the validation if the email property hasn't changed. Otherwise it halts the whole update operation (as it thinks the email address is already taken).



How can I run validation for a property only when the value is changing?



email: {
type: DataTypes.STRING,
allowNull: false,
validate: {
isEmail: {
msg: 'Wrong email format',
},
notEmpty: {
msg: 'Email has to be present',
},
isUnique: function(value, next) {
User.find({
where: {
email: value,
organizationId: this.organizationId,
},
})
.then(function(result) {
if (result === null) {
return next()
} else {
return next(' Email address already in use')
}
})
.catch(err => {
return next()
})
},
},
},









share|improve this question















I'm using Sequelize 4.38.0 and have the custom validation for email on the User model.



The way the custom validation is constructed (see below), I need to skip the validation if the email property hasn't changed. Otherwise it halts the whole update operation (as it thinks the email address is already taken).



How can I run validation for a property only when the value is changing?



email: {
type: DataTypes.STRING,
allowNull: false,
validate: {
isEmail: {
msg: 'Wrong email format',
},
notEmpty: {
msg: 'Email has to be present',
},
isUnique: function(value, next) {
User.find({
where: {
email: value,
organizationId: this.organizationId,
},
})
.then(function(result) {
if (result === null) {
return next()
} else {
return next(' Email address already in use')
}
})
.catch(err => {
return next()
})
},
},
},






node.js validation sequelize.js






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 13 at 21:33

























asked Nov 13 at 14:40









Fellow Stranger

6,17995584




6,17995584












  • what do you mean by "it's run all the time" ?
    – mihai
    Nov 13 at 19:52










  • @mihai I've updated the description. The custom email validation is run on every update operation of an user instance. And I wonder if it's possible to skip that custom validation when the email value isn't changing?
    – Fellow Stranger
    Nov 13 at 21:35


















  • what do you mean by "it's run all the time" ?
    – mihai
    Nov 13 at 19:52










  • @mihai I've updated the description. The custom email validation is run on every update operation of an user instance. And I wonder if it's possible to skip that custom validation when the email value isn't changing?
    – Fellow Stranger
    Nov 13 at 21:35
















what do you mean by "it's run all the time" ?
– mihai
Nov 13 at 19:52




what do you mean by "it's run all the time" ?
– mihai
Nov 13 at 19:52












@mihai I've updated the description. The custom email validation is run on every update operation of an user instance. And I wonder if it's possible to skip that custom validation when the email value isn't changing?
– Fellow Stranger
Nov 13 at 21:35




@mihai I've updated the description. The custom email validation is run on every update operation of an user instance. And I wonder if it's possible to skip that custom validation when the email value isn't changing?
– Fellow Stranger
Nov 13 at 21:35












1 Answer
1






active

oldest

votes


















0














Solved it with a conditional like this:



isUnique: function(value, next) {
if (this.changed('email')) {
User.find({
where: {
email: value,
organizationId: this.organizationId,
},
})
.then(function(result) {
if (result === null) {
return next()
} else {
return next(' Email address already in use')
}
})
.catch(err => {
return next()
})
} else {
next()
}
},





share|improve this answer





















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    1 Answer
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    0














    Solved it with a conditional like this:



    isUnique: function(value, next) {
    if (this.changed('email')) {
    User.find({
    where: {
    email: value,
    organizationId: this.organizationId,
    },
    })
    .then(function(result) {
    if (result === null) {
    return next()
    } else {
    return next(' Email address already in use')
    }
    })
    .catch(err => {
    return next()
    })
    } else {
    next()
    }
    },





    share|improve this answer


























      0














      Solved it with a conditional like this:



      isUnique: function(value, next) {
      if (this.changed('email')) {
      User.find({
      where: {
      email: value,
      organizationId: this.organizationId,
      },
      })
      .then(function(result) {
      if (result === null) {
      return next()
      } else {
      return next(' Email address already in use')
      }
      })
      .catch(err => {
      return next()
      })
      } else {
      next()
      }
      },





      share|improve this answer
























        0












        0








        0






        Solved it with a conditional like this:



        isUnique: function(value, next) {
        if (this.changed('email')) {
        User.find({
        where: {
        email: value,
        organizationId: this.organizationId,
        },
        })
        .then(function(result) {
        if (result === null) {
        return next()
        } else {
        return next(' Email address already in use')
        }
        })
        .catch(err => {
        return next()
        })
        } else {
        next()
        }
        },





        share|improve this answer












        Solved it with a conditional like this:



        isUnique: function(value, next) {
        if (this.changed('email')) {
        User.find({
        where: {
        email: value,
        organizationId: this.organizationId,
        },
        })
        .then(function(result) {
        if (result === null) {
        return next()
        } else {
        return next(' Email address already in use')
        }
        })
        .catch(err => {
        return next()
        })
        } else {
        next()
        }
        },






        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Nov 14 at 9:21









        Fellow Stranger

        6,17995584




        6,17995584






























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