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152 lines
12 KiB
JavaScript
152 lines
12 KiB
JavaScript
// models/courses/associations.js
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const { Course, CourseProductCategory } = require("./courses.mdl");
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const Unit = require("./units.mdl");
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const Lesson = require("./lessons.mdl");
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const CourseUnit = require("./course_units.mdl");
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const UnitLesson = require("./unit_lessons.mdl");
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const LessonPage = require("./lesson_page.mdl");
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const CourseObjective = require("./course_objective.mdl");
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const LessonObjective = require("./lesson_objective.mdl");
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const CoursePrerequisite = require("./course_prerequisite.mdl");
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const CourseAssessment = require("./course_assessment.mdl");
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const UnitQuiz = require("./unit_quiz.mdl");
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const QuizQuestion = require("./quiz_question.mdl");
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const QuizOption = require("./quiz_option.mdl");
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const mdl_Users = require("../users/users.mdl");
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const QuizAttempt = require("./quiz_attempt.mdl");
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const AssessmentSession = require("./assessment_session.mdl");
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const QuizSession = require("./quiz_session.mdl");
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const mdl_Category = require("./categories.mdl");
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const Certificate = require("./certificate.mdl");
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const CourseInstructor = require("./course_instructor.mdl");
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const CourseReadingProgress = require("./course_reading_progress.mdl");
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const UnitReadingProgress = require("./unit_reading_progress.mdl");
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const LessonReadingProgress = require("./lesson_reading_progress.mdl");
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const CourseAchievement = require("./course_achievement.mdl");
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const CompletionRequirement = require("./completion_requirement.mdl");
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const CompletionRequirementProgress = require("./completion_requirement_progress.mdl");
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// ── CourseReadingProgress ─────────────────────────────────────────────────────
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CourseReadingProgress.belongsTo(mdl_Users, { foreignKey: 'user_id', as: 'user' });
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CourseReadingProgress.belongsTo(Course, { foreignKey: 'course_id', as: 'course' });
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mdl_Users.hasMany(CourseReadingProgress, { foreignKey: 'user_id', as: 'courseReadingProgress' });
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Course.hasMany(CourseReadingProgress, { foreignKey: 'course_id', as: 'readingProgress' });
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// ── UnitReadingProgress ───────────────────────────────────────────────────────
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UnitReadingProgress.belongsTo(mdl_Users, { foreignKey: 'user_id', as: 'user' });
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UnitReadingProgress.belongsTo(Course, { foreignKey: 'course_id', as: 'course' });
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UnitReadingProgress.belongsTo(Unit, { foreignKey: 'unit_id', as: 'unit' });
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mdl_Users.hasMany(UnitReadingProgress, { foreignKey: 'user_id', as: 'unitReadingProgress' });
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Unit.hasMany(UnitReadingProgress, { foreignKey: 'unit_id', as: 'readingProgress' });
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// ── LessonReadingProgress ─────────────────────────────────────────────────────
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LessonReadingProgress.belongsTo(mdl_Users, { foreignKey: 'user_id', as: 'user' });
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LessonReadingProgress.belongsTo(Course, { foreignKey: 'course_id', as: 'course' });
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LessonReadingProgress.belongsTo(Unit, { foreignKey: 'unit_id', as: 'unit' });
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LessonReadingProgress.belongsTo(Lesson, { foreignKey: 'lesson_id', as: 'lesson' });
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mdl_Users.hasMany(LessonReadingProgress, { foreignKey: 'user_id', as: 'lessonReadingProgress' });
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Lesson.hasMany(LessonReadingProgress, { foreignKey: 'lesson_id', as: 'readingProgress' });
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// ── CompletionRequirement ─────────────────────────────────────────────────────
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// Polymorphic across course/unit/lesson via (entity_type, entity_id) — no belongsTo
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// to Course/Unit/Lesson here (can't express a 3-way FK); entity resolution happens
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// in services/courses/completion.service.js.
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CompletionRequirement.hasMany(CompletionRequirementProgress, { foreignKey: 'requirement_id', as: 'progress' });
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CompletionRequirementProgress.belongsTo(CompletionRequirement, { foreignKey: 'requirement_id', as: 'requirement' });
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CompletionRequirementProgress.belongsTo(mdl_Users, { foreignKey: 'user_id', as: 'user' });
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// ── Course ⇄ Unit / Unit ⇄ Lesson (junctions) ─────────────────────────────────
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// Units and Lessons are standalone entities. Membership + ordering live on the
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// course_units / unit_lessons junction rows (order_index).
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Course.belongsToMany(Unit, { through: CourseUnit, foreignKey: "course_id", otherKey: "unit_id", as: "units" });
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Unit.belongsToMany(Course, { through: CourseUnit, foreignKey: "unit_id", otherKey: "course_id", as: "courses" });
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Unit.belongsToMany(Lesson, { through: UnitLesson, foreignKey: "unit_id", otherKey: "lesson_id", as: "lessons" });
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Lesson.belongsToMany(Unit, { through: UnitLesson, foreignKey: "lesson_id", otherKey: "unit_id", as: "units" });
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// Direct junction access (attach / detach / reorder / count queries)
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Course.hasMany(CourseUnit, { as: "unitLinks", foreignKey: "course_id" });
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CourseUnit.belongsTo(Course, { as: "course", foreignKey: "course_id" });
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CourseUnit.belongsTo(Unit, { as: "unit", foreignKey: "unit_id" });
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Unit.hasMany(CourseUnit, { as: "courseLinks", foreignKey: "unit_id" });
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Unit.hasMany(UnitLesson, { as: "lessonLinks", foreignKey: "unit_id" });
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UnitLesson.belongsTo(Unit, { as: "unit", foreignKey: "unit_id" });
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UnitLesson.belongsTo(Lesson, { as: "lesson", foreignKey: "lesson_id" });
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Lesson.hasMany(UnitLesson, { as: "unitLinks", foreignKey: "lesson_id" });
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// ── Course ────────────────────────────────────────────────────────────────────
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Course.belongsTo(mdl_Users, { as: "creator", foreignKey: "createdBy" });
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Course.belongsTo(mdl_Users, { as: "updater", foreignKey: "updatedBy" });
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Course.hasMany(CourseObjective, { as: "objectives", foreignKey: "course_id" });
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Course.hasMany(CoursePrerequisite, { as: "prerequisites", foreignKey: "course_id" });
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Course.hasOne(CourseAssessment, { as: "assessment", foreignKey: "course_id" });
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Course.hasMany(Certificate, { as: "certificates", foreignKey: "course_id" });
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Course.hasMany(CourseInstructor, { as: "instructors", foreignKey: "course_id" });
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CourseInstructor.belongsTo(Course, { as: "course", foreignKey: "course_id" });
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CourseInstructor.belongsTo(mdl_Users, { as: "user", foreignKey: "user_id" });
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Course.hasMany(CourseAchievement, { as: "courseAchievements", foreignKey: "course_id" });
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CourseAchievement.belongsTo(Course, { as: "course", foreignKey: "course_id" });
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Course.belongsToMany(mdl_Category, { through: CourseProductCategory, foreignKey: 'course_id', otherKey: 'category_id', as: 'categories' });
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mdl_Category.belongsToMany(Course, { through: CourseProductCategory, foreignKey: 'category_id', otherKey: 'course_id', as: 'courses' });
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// ── Unit ──────────────────────────────────────────────────────────────────────
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Unit.belongsTo(mdl_Users, { as: "creator", foreignKey: "createdBy" });
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Unit.belongsTo(mdl_Users, { as: "updater", foreignKey: "updatedBy" });
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Unit.hasOne(UnitQuiz, { as: "quiz", foreignKey: "unit_id" });
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// ── Lesson ────────────────────────────────────────────────────────────────────
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Lesson.belongsTo(mdl_Users, { as: "creator", foreignKey: "createdBy" });
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Lesson.belongsTo(mdl_Users, { as: "updater", foreignKey: "updatedBy" });
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Lesson.hasOne(LessonPage, { as: "page", foreignKey: "lesson_id" });
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Lesson.hasMany(LessonObjective, { as: "objectives", foreignKey: "lesson_id" });
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// ── UnitQuiz ──────────────────────────────────────────────────────────────────
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UnitQuiz.belongsTo(Unit, { as: "unit", foreignKey: "unit_id" });
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UnitQuiz.belongsTo(mdl_Users, { as: "creator", foreignKey: "createdBy" });
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UnitQuiz.belongsTo(mdl_Users, { as: "updater", foreignKey: "updatedBy" });
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UnitQuiz.hasMany(QuizQuestion, { as: "questions", foreignKey: "quiz_id" });
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// ── CourseAssessment ──────────────────────────────────────────────────────────
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CourseAssessment.belongsTo(Course, { as: "course", foreignKey: "course_id" });
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CourseAssessment.belongsTo(mdl_Users, { as: "creator", foreignKey: "createdBy" });
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CourseAssessment.belongsTo(mdl_Users, { as: "updater", foreignKey: "updatedBy" });
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CourseAssessment.hasMany(QuizQuestion, { as: "questions", foreignKey: "assessment_id" });
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// ── QuizQuestion ──────────────────────────────────────────────────────────────
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QuizQuestion.belongsTo(UnitQuiz, { as: "quiz", foreignKey: "quiz_id" });
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QuizQuestion.belongsTo(CourseAssessment, { as: "assessment", foreignKey: "assessment_id" });
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QuizQuestion.hasMany(QuizOption, { as: "options", foreignKey: "question_id" });
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// ── QuizOption ────────────────────────────────────────────────────────────────
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QuizOption.belongsTo(QuizQuestion, { as: "question", foreignKey: "question_id" });
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// ── QuizAttempt ───────────────────────────────────────────────────────────────
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QuizAttempt.belongsTo(UnitQuiz, { as: "quiz", foreignKey: "quiz_id" });
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QuizAttempt.belongsTo(CourseAssessment, { as: "assessment", foreignKey: "assessment_id" });
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QuizAttempt.belongsTo(mdl_Users, { as: "user", foreignKey: "user_id" });
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UnitQuiz.hasMany(QuizAttempt, { as: "attempts", foreignKey: "quiz_id" });
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CourseAssessment.hasMany(QuizAttempt, { as: "attempts", foreignKey: "assessment_id" });
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// ── AssessmentSession ─────────────────────────────────────────────────────────
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AssessmentSession.belongsTo(CourseAssessment, { as: "assessment", foreignKey: "assessment_id" });
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AssessmentSession.belongsTo(mdl_Users, { as: "user", foreignKey: "user_id" });
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CourseAssessment.hasMany(AssessmentSession, { as: "sessions", foreignKey: "assessment_id" });
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// ── QuizSession ───────────────────────────────────────────────────────────────
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QuizSession.belongsTo(UnitQuiz, { as: "quiz", foreignKey: "quiz_id" });
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QuizSession.belongsTo(mdl_Users, { as: "user", foreignKey: "user_id" });
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UnitQuiz.hasMany(QuizSession, { as: "sessions", foreignKey: "quiz_id" });
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module.exports = {
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Course, CourseProductCategory,
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Unit, Lesson, LessonPage,
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CourseUnit, UnitLesson,
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CourseObjective, LessonObjective,
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CoursePrerequisite, CourseAssessment,
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UnitQuiz, QuizQuestion, QuizOption, QuizAttempt,
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AssessmentSession, QuizSession,
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mdl_Category, Certificate, CourseInstructor,
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CourseReadingProgress, UnitReadingProgress, LessonReadingProgress,
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CourseAchievement,
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CompletionRequirement, CompletionRequirementProgress,
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}; |