задачи 2 и 8
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Zuev
@@ -2182,3 +2182,323 @@ ALTER TABLE teacher_department_assignments
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COMMENT ON CONSTRAINT ex_teacher_primary_department_no_overlap
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ON teacher_department_assignments
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IS 'У преподавателя не могут пересекаться периоды двух основных кафедр';
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-- ==========================================
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-- Отсутствия преподавателей и мастер замены
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-- ==========================================
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CREATE TABLE teacher_absences (
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id BIGSERIAL PRIMARY KEY,
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teacher_id BIGINT NOT NULL REFERENCES users(id),
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start_date DATE NOT NULL,
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end_date DATE NOT NULL,
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reason TEXT NOT NULL,
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status VARCHAR(20) NOT NULL,
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requested_by BIGINT REFERENCES users(id),
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reviewed_by BIGINT REFERENCES users(id),
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review_comment TEXT,
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reviewed_at TIMESTAMPTZ,
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created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
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updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
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CONSTRAINT chk_teacher_absences_period CHECK (end_date >= start_date),
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CONSTRAINT chk_teacher_absences_reason CHECK (length(trim(reason)) BETWEEN 1 AND 2000),
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CONSTRAINT chk_teacher_absences_status CHECK (
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status IN ('PENDING', 'APPROVED', 'REJECTED', 'RESOLVED', 'CANCELLED')
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)
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);
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CREATE INDEX idx_teacher_absences_teacher_period
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ON teacher_absences(teacher_id, start_date, end_date);
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CREATE INDEX idx_teacher_absences_status
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ON teacher_absences(status);
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CREATE TABLE teacher_absence_decisions (
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id BIGSERIAL PRIMARY KEY,
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absence_id BIGINT NOT NULL REFERENCES teacher_absences(id) ON DELETE CASCADE,
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base_rule_slot_id BIGINT NOT NULL REFERENCES schedule_rule_slots(id),
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lesson_date DATE NOT NULL,
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resolution VARCHAR(30) NOT NULL,
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decision_status VARCHAR(20) NOT NULL,
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schedule_override_id BIGINT REFERENCES schedule_overrides(id) ON DELETE SET NULL,
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comment TEXT,
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decided_by BIGINT REFERENCES users(id),
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decided_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
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CONSTRAINT uq_teacher_absence_decision_lesson UNIQUE (
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absence_id,
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base_rule_slot_id,
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lesson_date
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),
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CONSTRAINT chk_teacher_absence_decision_resolution CHECK (
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resolution IN ('REPLACE_TEACHER', 'MOVE_TIME', 'CHANGE_CLASSROOM', 'CANCEL', 'REJECT')
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),
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CONSTRAINT chk_teacher_absence_decision_status CHECK (
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decision_status IN ('APPLIED', 'REJECTED')
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)
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);
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CREATE INDEX idx_teacher_absence_decisions_absence
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ON teacher_absence_decisions(absence_id, lesson_date);
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COMMENT ON TABLE teacher_absences IS 'Временные отсутствия преподавателей с согласованием кафедрой';
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COMMENT ON COLUMN teacher_absences.status IS 'PENDING, APPROVED, REJECTED, RESOLVED или CANCELLED';
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COMMENT ON TABLE teacher_absence_decisions IS 'Журнал применённых и отклонённых решений мастера замены';
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COMMENT ON COLUMN teacher_absence_decisions.resolution IS 'Выбранный способ разрешения затронутого занятия';
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-- ==========================================
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-- Пожелания и заявки преподавателей
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-- ==========================================
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CREATE TABLE teacher_preferences (
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id BIGSERIAL PRIMARY KEY,
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teacher_id BIGINT NOT NULL REFERENCES users(id),
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semester_id BIGINT NOT NULL REFERENCES semesters(id),
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preference_type VARCHAR(30) NOT NULL,
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day_of_week SMALLINT,
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time_slot_id BIGINT REFERENCES time_slots(id),
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preference_date DATE,
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comment TEXT,
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status VARCHAR(20) NOT NULL,
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requested_by BIGINT REFERENCES users(id),
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reviewed_by BIGINT REFERENCES users(id),
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review_comment TEXT,
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reviewed_at TIMESTAMPTZ,
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created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
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updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
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CONSTRAINT chk_teacher_preferences_type CHECK (
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preference_type IN (
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'HARD_UNAVAILABLE',
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'SOFT_PREFERRED',
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'SOFT_UNWANTED',
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'CONSECUTIVE',
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'NO_GAPS'
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)
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),
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CONSTRAINT chk_teacher_preferences_status CHECK (
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status IN ('PENDING', 'APPROVED', 'REJECTED', 'CANCELLED')
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),
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CONSTRAINT chk_teacher_preferences_day CHECK (
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day_of_week IS NULL OR day_of_week BETWEEN 1 AND 7
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),
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CONSTRAINT chk_teacher_preferences_payload CHECK (
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(
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preference_type = 'HARD_UNAVAILABLE'
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AND (
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(preference_date IS NOT NULL AND day_of_week IS NULL AND time_slot_id IS NULL)
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OR
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(preference_date IS NULL AND day_of_week IS NOT NULL AND time_slot_id IS NOT NULL)
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)
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)
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OR
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(
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preference_type IN ('SOFT_PREFERRED', 'SOFT_UNWANTED')
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AND preference_date IS NULL
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AND day_of_week IS NOT NULL
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AND time_slot_id IS NOT NULL
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)
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OR
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(
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preference_type IN ('CONSECUTIVE', 'NO_GAPS')
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AND preference_date IS NULL
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AND day_of_week IS NULL
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AND time_slot_id IS NULL
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)
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),
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CONSTRAINT chk_teacher_preferences_comment CHECK (
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comment IS NULL OR length(trim(comment)) BETWEEN 1 AND 2000
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)
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);
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CREATE INDEX idx_teacher_preferences_teacher_semester
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ON teacher_preferences(teacher_id, semester_id, status);
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CREATE INDEX idx_teacher_preferences_slot
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ON teacher_preferences(semester_id, day_of_week, time_slot_id)
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WHERE status = 'APPROVED';
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CREATE INDEX idx_teacher_preferences_date
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ON teacher_preferences(teacher_id, preference_date)
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WHERE status = 'APPROVED' AND preference_date IS NOT NULL;
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CREATE TABLE teacher_change_requests (
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id BIGSERIAL PRIMARY KEY,
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teacher_id BIGINT NOT NULL REFERENCES users(id),
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base_rule_slot_id BIGINT NOT NULL REFERENCES schedule_rule_slots(id),
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lesson_date DATE NOT NULL,
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request_type VARCHAR(30) NOT NULL,
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target_lesson_date DATE,
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requested_time_slot_id BIGINT REFERENCES time_slots(id),
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requested_classroom_id BIGINT REFERENCES classrooms(id),
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reason TEXT NOT NULL,
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status VARCHAR(20) NOT NULL,
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reviewed_by BIGINT REFERENCES users(id),
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review_comment TEXT,
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reviewed_at TIMESTAMPTZ,
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applied_override_id BIGINT REFERENCES schedule_overrides(id) ON DELETE SET NULL,
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created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
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updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
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CONSTRAINT chk_teacher_change_requests_type CHECK (
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request_type IN ('MOVE', 'CHANGE_CLASSROOM', 'CANCEL')
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),
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CONSTRAINT chk_teacher_change_requests_status CHECK (
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status IN ('PENDING', 'APPROVED', 'REJECTED', 'CANCELLED')
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),
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CONSTRAINT chk_teacher_change_requests_reason CHECK (
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length(trim(reason)) BETWEEN 1 AND 2000
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),
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CONSTRAINT chk_teacher_change_requests_payload CHECK (
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(
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request_type = 'MOVE'
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AND requested_time_slot_id IS NOT NULL
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AND requested_classroom_id IS NULL
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)
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OR
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(
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request_type = 'CHANGE_CLASSROOM'
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AND target_lesson_date IS NULL
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AND requested_time_slot_id IS NULL
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AND requested_classroom_id IS NOT NULL
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)
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OR
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(
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request_type = 'CANCEL'
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AND target_lesson_date IS NULL
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AND requested_time_slot_id IS NULL
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AND requested_classroom_id IS NULL
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)
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)
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);
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CREATE INDEX idx_teacher_change_requests_teacher
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ON teacher_change_requests(teacher_id, created_at DESC);
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CREATE INDEX idx_teacher_change_requests_status
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ON teacher_change_requests(status, created_at);
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CREATE UNIQUE INDEX uq_teacher_change_requests_pending_lesson
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ON teacher_change_requests(base_rule_slot_id, lesson_date)
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WHERE status = 'PENDING';
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CREATE TABLE teacher_change_request_history (
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id BIGSERIAL PRIMARY KEY,
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request_id BIGINT NOT NULL REFERENCES teacher_change_requests(id) ON DELETE CASCADE,
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status VARCHAR(20) NOT NULL,
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comment TEXT,
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actor_id BIGINT REFERENCES users(id),
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created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
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CONSTRAINT chk_teacher_change_request_history_status CHECK (
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status IN ('PENDING', 'APPROVED', 'REJECTED', 'CANCELLED')
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)
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);
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CREATE INDEX idx_teacher_change_request_history_request
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ON teacher_change_request_history(request_id, created_at, id);
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COMMENT ON TABLE teacher_preferences IS 'Согласуемые ограничения и пожелания преподавателей на семестр';
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COMMENT ON COLUMN teacher_preferences.preference_type IS 'Строгая недоступность, мягкое пожелание или пожелание к компактности расписания';
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COMMENT ON TABLE teacher_change_requests IS 'Заявки преподавателей на перенос, смену аудитории или отмену опубликованного занятия';
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COMMENT ON TABLE teacher_change_request_history IS 'Неизменяемая история статусов и комментариев по заявке преподавателя';
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-- ==========================================
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-- Черновики, версии, публикация и аудит расписания
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-- ==========================================
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CREATE TABLE schedule_versions (
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id BIGSERIAL PRIMARY KEY,
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semester_id BIGINT NOT NULL REFERENCES semesters(id) ON DELETE CASCADE,
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version_number INT NOT NULL,
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name VARCHAR(160) NOT NULL,
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status VARCHAR(20) NOT NULL,
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based_on_version_id BIGINT REFERENCES schedule_versions(id) ON DELETE SET NULL,
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restored_from_version_id BIGINT REFERENCES schedule_versions(id) ON DELETE SET NULL,
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change_reason TEXT,
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created_by BIGINT REFERENCES users(id),
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created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
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published_by BIGINT REFERENCES users(id),
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published_at TIMESTAMPTZ,
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archived_at TIMESTAMPTZ,
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CONSTRAINT uq_schedule_versions_number UNIQUE (semester_id, version_number),
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CONSTRAINT chk_schedule_versions_number CHECK (version_number > 0),
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CONSTRAINT chk_schedule_versions_name CHECK (length(trim(name)) BETWEEN 1 AND 160),
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CONSTRAINT chk_schedule_versions_status CHECK (status IN ('DRAFT', 'PUBLISHED', 'ARCHIVED')),
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CONSTRAINT chk_schedule_versions_publish_fields CHECK (
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status <> 'PUBLISHED' OR published_at IS NOT NULL
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)
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);
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CREATE UNIQUE INDEX uq_schedule_versions_published_semester
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ON schedule_versions(semester_id)
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WHERE status = 'PUBLISHED';
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CREATE INDEX idx_schedule_versions_semester_history
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ON schedule_versions(semester_id, version_number DESC);
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INSERT INTO schedule_versions (
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semester_id,
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version_number,
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name,
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status,
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created_at,
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published_at
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)
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SELECT
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semester.id,
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1,
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'Опубликованная версия 1',
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'PUBLISHED',
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CURRENT_TIMESTAMP,
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CURRENT_TIMESTAMP
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FROM semesters semester;
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ALTER TABLE schedule_rules
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ADD COLUMN schedule_version_id BIGINT;
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UPDATE schedule_rules rule
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SET schedule_version_id = version.id,
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version_group_id = COALESCE(rule.version_group_id, rule.id)
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FROM schedule_versions version
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WHERE version.semester_id = rule.semester_id
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AND version.status = 'PUBLISHED';
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ALTER TABLE schedule_rules
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ALTER COLUMN schedule_version_id SET NOT NULL,
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ADD CONSTRAINT fk_schedule_rules_version
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FOREIGN KEY (schedule_version_id) REFERENCES schedule_versions(id) ON DELETE CASCADE;
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CREATE INDEX idx_schedule_rules_version
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ON schedule_rules(schedule_version_id, status);
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CREATE UNIQUE INDEX uq_schedule_rules_version_group
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ON schedule_rules(schedule_version_id, version_group_id)
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WHERE version_group_id IS NOT NULL;
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CREATE TABLE schedule_version_history (
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id BIGSERIAL PRIMARY KEY,
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version_id BIGINT NOT NULL REFERENCES schedule_versions(id) ON DELETE CASCADE,
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action VARCHAR(30) NOT NULL,
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actor_id BIGINT REFERENCES users(id),
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reason TEXT,
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created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
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CONSTRAINT chk_schedule_version_history_action CHECK (
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action IN ('CREATED', 'PUBLISHED', 'ARCHIVED', 'RESTORED')
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),
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CONSTRAINT chk_schedule_version_history_reason CHECK (
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reason IS NULL OR length(trim(reason)) BETWEEN 1 AND 2000
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)
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);
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CREATE INDEX idx_schedule_version_history_version
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ON schedule_version_history(version_id, created_at DESC, id DESC);
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INSERT INTO schedule_version_history (version_id, action, reason, created_at)
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SELECT id, 'CREATED', 'Начальная версия расписания', created_at
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FROM schedule_versions;
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INSERT INTO schedule_version_history (version_id, action, reason, created_at)
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SELECT id, 'PUBLISHED', 'Начальная публикация расписания', published_at
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FROM schedule_versions;
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COMMENT ON TABLE schedule_versions IS 'Изолированные черновики и опубликованные версии правил расписания';
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COMMENT ON COLUMN schedule_versions.status IS 'DRAFT, PUBLISHED или ARCHIVED';
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COMMENT ON COLUMN schedule_versions.based_on_version_id IS 'Версия, из которой был скопирован черновик';
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COMMENT ON COLUMN schedule_versions.restored_from_version_id IS 'Предыдущая опубликованная версия при восстановлении';
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COMMENT ON COLUMN schedule_rules.schedule_version_id IS 'Версия расписания, которой принадлежит правило';
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COMMENT ON COLUMN schedule_rules.version_group_id IS 'Стабильный идентификатор правила между версиями';
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COMMENT ON TABLE schedule_version_history IS 'Неизменяемый журнал создания, публикации, архивации и восстановления версий';
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