When I added in onSuccessCreateClass into meteor.call callback and this error come up. dont know what is wrong here?
Exception in delivering result of invoking 'createClass': TypeError: this.onSuccessCreateClass is not a function at http://localhost:3000/app/client/components/MyClasses.jsx?044c7b228d4b33fcea4b9f3c05da6d82e5e6c8b7:37:11 at null._callback ( http://localhost:3000/packages/meteor.js?9730f4ff059088b3f7f14c0672d155218a1802d4:999:22 ) at _.extend._maybeInvokeCallback ( http://localhost:3000/packages/ddp-client.js?250b63e6c919c5383a0511ee4efbf42bb70a650f:3500:12 ) at .extend.dataVisible ( http://localhost:3000/packages/ddp-client.js?250b63e6c919c5383a0511ee4efbf42bb70a650f:3529:10 ) at http://localhost:3000/packages/ddp-client.js?250b63e6c919c5383a0511ee4efbf42bb70a650f:4365:7 at Array.forEach (native) at Function. .each._.forEach ( http://localhost:3000/packages/underscore.js?46eaedbdeb6e71c82af1b16f51c7da4127d6f285:149:11 ) at _.extend._runAfterUpdateCallbacks ( http://localhost:3000/packages/ddp-client.js?250b63e6c919c5383a0511ee4efbf42bb70a650f:4364:7 ) at _.extend._livedata_data ( http://localhost:3000/packages/ddp-client.js?250b63e6c919c5383a0511ee4efbf42bb70a650f:4354:10 ) at onMessage ( http://localhost:3000/packages/ddp-client.js?250b63e6c919c5383a0511ee4efbf42bb70a650f:3361:12 )
onSuccessCreateClass() {
console.log("Successfully created New Class")
$("#createClassModal").modal('hide')
$('#createClassModal').on('hidden.bs.modal', function () {
$(this).find('form').trigger('reset')
})
},
onPressSubmit(e) {
e.preventDefault()
const className = e.target.cname.value
console.log(this.props.courseId)
console.log(className)
if (Meteor.user().classes.length !== 0)
{
console.log("Got Class")
Meteor.call("createClass", this.props.courseId, className, function(error) {
if (error)
{
console.log(error.reason)
}
else
{
this.onSuccessCreateClass()
}
})
}
else
{
console.log("No Class")
Meteor.call("createNewClass", this.props.courseId, className, function(error) {
if (error)
{
console.log(error.reason)
}
else
{
this.onSuccessCreateClass()
}
})
}
},
You should set this
for callback in Meteor.call
, because now this
refers to the global scope or undefined
if you are using strict mode
. In JavaScript, there is method .bind
which allows set this
for method
Meteor.call("createClass", this.props.courseId, className, function(error) {
if (error) {
console.log(error.reason)
} else {
this.onSuccessCreateClass()
}
}.bind(this))
--
Meteor.call("createNewClass", this.props.courseId, className, function(error) {
if (error) {
console.log(error.reason)
} else {
this.onSuccessCreateClass()
}
}.bind(this))
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