Cannot read properties of undefined (reading ‘courseCertificate’)
there is a courseCertificate field already contain the data but still not reading it
getCourseDetails(language, req, callback) { //get course details
console.log(req.id);
let that = this;
this.course
.find(
{ _id: ObjectId(req.query.courseId), companyId: req.query.companyId },
{ __v: 0, createdBy: 0, createdAt: 0, updatedAt: 0, isDelete: 0 }
)
.populate("courseDetail.interestId")
.populate("courseCertificate.certificateId")
.populate("courseCertificate.trainers")
.lean()
.exec(function (err, courseFound) {
console.log("------------------", courseFound)
that.user.findOne({ _id: req.id }, function (err, user) {
console.log("------------------------", user.fullName);
if (err) return callback(err);
if (courseFound && courseFound.length === 0) {
return callback(false, common.errorMsg("COURSE DOES NOT EXIST"));
} else {
that.courseRegister
.find({
userId: ObjectId(req.id),
courseId: ObjectId(req.query.courseId),
})
.lean()
.exec(function (err, courseReg) {
that.feedback.aggregate([
{
"$match": { courseId: ObjectId(req.query.courseId) }
},
{
$project: {
rating: "$result.likeCourse"
}
}, {
$group: {
_id: null,
sum: { $sum: "$rating" },
count: { $sum: 1 }
}
}, {
$project: {
rating: { $divide: ["$sum", "$count"] }
}
}
], function (err, feedback) {
let _preAssessmentCompleted = false;
let _finalAssessmentCompeleted = false;
let _summaryCompeleted = false;
if (courseReg.length > 0) {
_preAssessmentCompleted = courseReg[0].preAssessment;
_finalAssessmentCompeleted = courseReg[0].finalAssessment;
_summaryCompeleted = courseReg[0].courseCompeltion;
}
that.courseDetail
.find({ courseId: ObjectId(req.query.courseId) })
.lean()
.exec(function (err, courseDetails) {
courseFound[0].courseDetail.skillId = courseFound[0].courseDetail.interestId.skills.filter(
function (item) {
return (item._id =
courseFound[0].courseDetail.skillId);
}
);
delete courseFound[0].courseDetail.interestId.skills;
courseFound[0]["summary"] =
courseDetails.length > 0
? _.map(courseDetails[0].sections, function (item) {
item["isCompleted"] = false;
if (
courseReg.length > 0 &&
courseReg[0].hasOwnProperty(
"courseAssessmentResponse"
)
) {
if (courseReg[0].courseAssessmentResponse.length > 0) {
let sec_found = courseReg[0].courseAssessmentResponse.filter(
function (it) {
// console.log(it,item._id)
return (
it.sectionId.toString() == item._id.toString()
);
}
);
item["isCompleted"] = sec_found.length > 0 ? true : false;
}
}
// if (courseReg.length > 0 && courseReg[0].hasOwnProperty('lessons')) {
// let topicLength = 0;
// _.forEach(item.lesson,function(t){
// topicLength = topicLength + t.topics.length
// });
// let courseRegTopicLen = 0;
// if(courseReg[0].lessons.length>0){
// courseRegTopicLen = courseReg[0].lessons.filter(function(s){
// return s.sectionId.toString() == item._id.toString()
// }).length
// }
// console.log("==============",courseRegTopicLen, topicLength)
// if (courseRegTopicLen >= topicLength) {
// console.log("I am true ")
// item["isCompleted"] = true;
// }
// }
item.lesson = _.map(item.lesson, function (
items
) {
let l_found = [];
if (courseReg.length > 0) {
if (
courseReg[0].hasOwnProperty("lessons")
) {
l_found = courseReg[0].lessons.filter(
function (l) {
return (
l.lessonId.toString() ==
items._id.toString()
);
}
);
}
}
// console.log(items.topics);
let t_found = [];
items.topics = _.map(items.topics, function (
topic
) {
if (courseReg.length > 0) {
if (
courseReg[0].hasOwnProperty("lessons")
) {
t_found = courseReg[0].lessons.filter(
function (t) {
return (
t.topicId.toString() ==
topic._id.toString()
);
}
);
}
}
topic["isCompleted"] =
t_found.length > 0 ? true : false;
// console.log(topic)
return topic;
});
items["isCompleted"] =
l_found.length > 0 ? true : false;
return items;
});
return item;
})
: [];
if (courseFound[0].courseWelcome) {
courseFound[0].courseWelcome.isCompleted = false;
if (courseReg.length > 0) {
courseFound[0].courseWelcome.isCompleted = true;
}
}
if (courseFound[0].courseDetail)
courseFound[0].courseDetail.isCompleted = true;
if (courseFound[0].preAssessment)
courseFound[0].preAssessment.isCompleted = _preAssessmentCompleted;
if (courseFound[0].finalAssessment)
courseFound[0].finalAssessment.isCompleted = _finalAssessmentCompeleted;
if (courseFound[0].summary)
courseFound[0].summary.isCompleted = _summaryCompeleted;
if (
courseReg.length > 0 &&
courseReg[0].preAssessment
) {
courseFound[0].preAssessment.sections = _.map(
courseFound[0].preAssessment.sections,
function (sec) {
let sec_found = courseReg[0].preAssessmentResponse.sections.filter(
function (r_sec) {
return (
sec._id.toString() ==
r_sec.sectionId.toString()
);
}
);
if (sec_found.length > 0) {
sec.questions = sec.question.map(function (
ques
) {
let ques_found = sec_found[0].question.filter(
function (r_ques) {
return (
ques._id.toString() ==
r_ques.questionId.toString()
);
}
);
if (ques_found.length > 0) {
ques.selected = ques_found[0].selected;
} else {
ques.selected = null;
}
return ques;
});
}
return sec;
}
);
}
if (
courseReg.length > 0 &&
courseReg[0].finalAssessment
) {
courseFound[0].finalAssessment.question = _.map(
courseFound[0].finalAssessment.question,
function (ques) {
let ques_found = courseReg[0].finalAssessmentResponse.question.filter(
function (r_ques) {
console.log(ques._id, r_ques.questionId);
return (
ques._id.toString() ==
r_ques.questionId.toString()
);
}
);
if (ques_found.length > 0) {
ques.selected = ques_found[0].selected;
let _correct = ques.options.filter(function(o){
return o._id.toString() == ques.selected.toString()
})
if(_correct.length>0) ques.isCorrect = true
} else {
ques.isCorrect = false
ques.selected = null;
}
return ques;
}
);
}
// ======================================================== if condition
if(courseFound[0].courseCertificate && courseFound[0].courseCertificate.trainers){
let trainer =
courseFound[0].courseCertificate.tariners;
var htmlcontent =
courseFound[0].courseCertificate.certificateId
.content;
htmlcontent = htmlcontent.replace(
"{name}",
user.fullName
);
courseFound[0].courseCertificate = htmlcontent; } //if condition
courseFound[0].courseDetail.rating = feedback.length > 0 ? feedback[0].rating : 0
let orderedData = {
courseDetail: courseFound[0].courseDetail,
courseWelcome: courseFound[0].courseWelcome,
preAssessment: courseFound[0].preAssessment,
summary: courseFound[0]["summary"],
finalAssessment: courseFound[0].finalAssessment,
feedback: {
isCompleted:
(courseReg &&courseReg.length > 0)
? courseReg[0].feedback
: false,
},
courseCertificate: courseFound[0].courseCertificate,
isCourseCompleted: courseReg[0].courseCertificate,
trainerDetails: {
email: (trainer && trainer.length>0)?trainer[0].email:null,
mobile: (trainer && trainer.length>0)? trainer[0].mobile
: null,
name: (trainer && trainer.length>0)?trainer[0].fullName:"",
},
};
return callback(
false,
common.successMsg("COURSE FETCHED", [orderedData])
);
});
});
});
}
});
});
}
