Skip to content
Permalink
master
Switch branches/tags

Name already in use

A tag already exists with the provided branch name. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. Are you sure you want to create this branch?

4007CEM-Resit-2/DBClassFirst.h

Go to file
 
 
Cannot retrieve contributors at this time
363 lines (358 sloc) 16.4 KB
Raw Blame
Open in GitHub Desktop
#include <iostream>
#include <string>
#include <sqlite3.h>
using namespace std;
class TimeTable {
private:
sqlite3 *db;
char *zErrMsg;
int rc;
const char* sql;
sqlite3_stmt *stmt;
static int callback(void *NotUsed, int argc, char **argv, char **azColName){
int i;
for(i = 0; i<argc; i++){
printf("%s = %s\n", azColName[i], argv[i] ? argv[1] : "NULL");
}
printf("\n");
return 0;
}
void DBErrors(){
if(rc){
cout<<"Data Base Error:"<<sqlite3_errmsg(db)<<endl;
closeDB();
}
}
void LecturersTable(){ //To be discarded
sql = "CREATE TABLE LECTURERS(" \
"LECTURER_ID NUMBER(8) PRIMARY KEY NOT NULL,"\
"PREFIX CHAR(5) NOT NULL,"\
"FIRST_NAME CHAR(15) NOT NULL,"\
"LAST_NAME CHAR(15) NOT NULL);";
rc = sqlite3_exec(db, sql, callback, 0, &zErrMsg);
}
void ModulesTable(){ //To be updated
sql = "CREATE TABLE MODULE("\
"MODULE_ID VARCHAR(10) PRIMARY KEY NOT NULL,"\
"MODULE_NAME CHAR(50) NOT NULL,"\
"STAGE VARCHAR(15) NOT NULL,"\
"CAPACITY NUMBER(3) NOT NULL,"\
"CREDITS NUMBER(3) NOT NULL,"\
"FACULTY CHAR(50) NOT NULL,"\
"COURSE_ID NUMBER(8),"\
"FOREIGN KEY (COURSE_ID) REFERENCES COURSE(COURSE_ID),"\
"LECTURER_ID NUMBER(8),"\
"FOREIGN KEY (LECTURER_ID) REFERENCES LECTURERS(LECTURER_ID));";
rc = sqlite3_exec(db, sql, callback, 0, &zErrMsg);
}
void CoursesTable(){ //To be updated
sql = "CREATE TABLE COURSE("\
"COURSE_ID NUMBER(8) PRIMARY KEY NOT NULL,"\
"COURSE_NAME CHAR(50) NOT NULL);";
rc = sqlite3_exec(db, sql, callback, 0, &zErrMsg);
}
void ClassesTable(){ //To be Updated
sql = "CREATE TABLE CLASSES("\
"CLASS_NAME VARCHAR(25) PRIMARY KEY NOT NULL,"\
"DURATION VARCHAR(35) NOT NULL,"\
"TIME VARCHAR(10) NOT NULL,"\
"DATE VARCHAR(10) NOT NULL,"\
"MODULE_ID VARCHAR(10),"\
"FOREIGN KEY (MODULE_ID) REFERENCES MODULE(MODULE_ID));"
;
rc = sqlite3_exec(db, sql, callback, 0, &zErrMsg);
}
void RoomsTable(){ //To be discarded
sql = "CREATE TABLE ROOM("\
"ROOM_NUMBER VARCHAR(7) PRIMARY KEY NOT NULL,"\
"CAPACITY NUMBER(3) NOT NULL,"\
"LOCATION VARCHAR(40) NOT NULL,"\
"CLASS_NAME VARCHAR(25),"\
"FOREIGN KEY (CLASS_NAME) REFERENCES CLASSES(CLASS_NAME));"
;
rc = sqlite3_exec(db, sql, callback, 0, &zErrMsg);
}
void StudentsTable(){ // To be updated
sql = "CREATE TABLE STUDENT("\
"STUDENT_ID NUMBER(8) PRIMARY KEY NOT NULL,"\
"FIRST_NAME CHAR(15) NOT NULL,"\
"LAST_NAME CHAR(15) NOT NULL,"\
"DATE_OF_BIRTH VARCHAR(10) NOT NULL,"\
"NATIONALITY CHAR(20) NOT NULL,"\
"COURSE CHAR(50) NOT NULL,"\
"FOREIGN KEY (COURSE) REFERENCES COURSE(COURSE_NAME));"
;
rc = sqlite3_exec(db, sql, callback, 0, &zErrMsg);
}
void IntoLecturers(const char* ID ,const char* PX, const char* FN, const char* LN){ // To be discarded
char *query = nullptr;
asprintf(&query, "INSERT INTO LECTURERS (LECTURER_ID,PREFIX,FIRST_NAME,LAST_NAME) "
"VALUES ('%s', '%s', '%s', '%s');",ID,PX,FN,LN );
ChecksNSubmission(query);
}
void IntoModules(const char* ID, const char* NOM, const char* STG, const char* CAP, const char* CRD,
const char* FAQ,const char* CID, const char* LID){ // To Be updated
char *query = nullptr;
asprintf(&query, "INSERT INTO MODULE (MODULE_ID, MODULE_NAME, STAGE, CAPACITY, "
"CREDITS, FACULTY, COURSE_ID, LECTURER_ID) "
"VALUES ('%s','%s','%s','%s','%s','%s','%s','%s');",ID,NOM,STG,CAP,CRD,FAQ,CID,LID);
ChecksNSubmission(query);
}
void IntoClasses(const char* NOM,const char* DUR,const char* TIM,const char* DAT,const char* MID){ //To be updated
char *query = nullptr;
asprintf(&query, "INSERT INTO CLASSES (CLASS_NAME, DURATION, TIME, DATE, MODULE_ID) "
"VALUES ('%s','%s','%s','%s','%s');",NOM,DUR,TIM,DAT,MID);
ChecksNSubmission(query);
}
void IntoRooms(const char* RN, const char* CAP, const char* LN, const char* CN){ //To be discarded
char *query = nullptr;
asprintf(&query, "INSERT INTO ROOM (ROOM_NUMBER, CAPACITY, LOCATION, CLASS_NAME) "
"VALUES ('%s','%s','%s','%s');",RN,CAP,LN,CN);
ChecksNSubmission(query);
}
void IntoStudents(const char* ID, const char* FN, const char* LN, const char* DOB,
const char* NN, const char* CS){ //To be updated
char *query = nullptr;
asprintf(&query, "INSERT INTO STUDENT (STUDENT_ID,FIRST_NAME,LAST_NAME, DATE_OF_BIRTH, "
"NATIONALITY,COURSE,MODULE_NAME) "
"VALUES ('%s','%s','%s','%s','%s','%s');",ID,FN,LN,DOB,NN,CS);
ChecksNSubmission(query);
}
void IntoCourses(const char* CID, const char* CN){ //To be Updated
char *query = nullptr;
asprintf(&query, "INSERT INTO COURSE (COURSE_ID,COURSE_NAME) VALUES ('%s','%s');",CID,CN);
ChecksNSubmission(query);
}
void CourseContents(const char* CID){ // To be discarded
char *query = nullptr;
asprintf(&query, "SELECT COURSE_ID, COURSE_NAME, MODULE_NAME FROM COURSE, MODULE "
"FROM COURSE, MODULE "
"WHERE COURSE_ID = '%s' "
"AND COURSE.COURSE_ID "
"= MODULE.COURSE_ID;",CID);
ChecksNSubmission(query);
}
void UniqStudentTT(const char* SID){ //To be discarded
char *query = nullptr;
asprintf(&query, "SELECT STUDENT_ID, COURSE_NAME, COURSE_ID, MODULE_NAME, CLASS_NAME, TIME, DATE, LOCATION "
"FROM COURSE, STUDENT, MODULE, ROOM, CLASSES "
"WHERE STUDENT_ID = '%s' "
"AND STUDENT.COURSE = COURSE.COURSE_NAME "
"AND COURSE.COURSE_ID = MODULE.COURSE_ID ",SID);
ChecksNSubmission(query);
}
public:
TimeTable(){
//This Portion allows user to name the database
cout<<"What would you like to name the Database? : "<<endl;
string FileName ;
cin >> FileName;
rc = sqlite3_open( FileName.c_str(), &db);
DBErrors();
//cout<<"Going into Courses"<<endl;
//CoursesTable();
DBErrors();
// cout<<"Going into Lecturers"<<endl;
//LecturersTable();
DBErrors();
cout<<"Going into Modules"<<endl;
ModulesTable();
DBErrors();
cout<<"Going into Classes"<<endl;
//ClassesTable();
DBErrors();
cout<<"Going into Rooms"<<endl;
// RoomsTable();
DBErrors();
cout<<"Going into Students"<<endl;
StudentsTable();
DBErrors();
}
void ChecksNSubmission(char *query){
sqlite3_prepare(db, query, strlen(query), &stmt, nullptr);
rc = sqlite3_step(stmt);
sqlite3_finalize(stmt);
free(query);
}
void FillLecturersTable(){
int NumL;
int i = 0;
cout<<"How many lecturers would you like to add to the record today?"<<endl;
cin>>NumL;
while (i != NumL){
i++;
string ID,PX,FN,LN;
cout<<"Please enter the ID number for lecturer number "<<i<<endl;
cin>>ID;
cout<<"Please enter the prefix for lecturer number "<<i<<endl;
cin>>PX;
cout<<"Please enter only the first name for lecturer number"<<i<<endl;
cin>>FN;
cout<<"Please enter only the last name for lecturer number"<<i<<endl;
cin>>LN;
const char* I_D = ID.c_str();
const char* P_X = PX.c_str();
const char* F_N = FN.c_str();
const char* L_N = LN.c_str();
IntoLecturers(I_D,P_X,F_N,L_N);
}
}
void FillModulesTable() {
int NumM;
int i = 0;
cout << "How many modules would you like to add to the record today? "<<endl;
cin >> NumM;
while (i != NumM) {
i++;
string I_D, N_OM, S_TG, C_AP, C_RD, F_AQ, L_ID, C_ID;
cout << "Please enter the module ID number for module number " << i << endl;
cin >>I_D ;
cout << "Please enter the name for module number " << i << endl;
cin >>N_OM ;
cout << "Please enter the stage in which a student would undertake module number " << i << endl;
cin >>S_TG ;
cout << "Please enter the capacity of module number " << i << endl;
cin >>C_AP ;
cout << "Please enter the amount of credits to be achieved for module number " << i << endl;
cin >>C_RD ;
cout << "Please enter relevant faculty for module number " << i << endl;
cin >>F_AQ;
cout << "Please enter the course ID number for module number " << i << endl;
cin >>C_ID;
cout << "Please enter the ID # for the lecturer that teaches module number " << i << endl;
cin >>L_ID;
const char* ID = I_D.c_str();
const char* NOM = N_OM.c_str();
const char* STG = S_TG.c_str();
const char* CAP = C_AP.c_str();
const char* CRD = C_RD.c_str();
const char* FAQ = F_AQ.c_str();
const char* LID = L_ID.c_str();
const char* CID = C_ID.c_str();
IntoModules(ID,NOM,STG,CAP,CRD,FAQ,CID,LID);
}
}
void FillClassesTable(){
int NumC;
int i = 0;
cout<<"How many classes would you like to add to the record today? "<<endl;
cin>>NumC;
while (i != NumC){
i++;
string N_OM,D_UR,T_IM,D_AT,M_ID;
cout<<"Please enter the name for class number "<<i<<endl;
cin>>N_OM;
cout<<"Please enter the duration for class number "<<i<<endl;
cin>>D_UR;
cout<<"Please enter thr time for class number "<<i<<endl;
cin>>T_IM;
cout<<"Please enter the date for class number "<<i<<endl;
cin>>D_AT;
cout<<"Please enter the module ID for class number "<<i<<endl;
cin>>M_ID;
const char* NOM = N_OM.c_str();
const char* DUR = D_UR.c_str();
const char* TIM = T_IM.c_str();
const char* DAT = D_AT.c_str();
const char* MID = M_ID.c_str();
IntoClasses(NOM,DUR,TIM,DAT,MID);
}
}
void FillRoomsTable(){
int NumR;
int i = 0;
cout<<"How many rooms would you like to add to the record today? "<<endl;
cin>>NumR;
while (i != NumR){
i++;
string R_N,C_AP,L_N,C_N;
cout<<"Please enter the room number for room number "<<i<<endl;
cin>> R_N;
cout<<"Please enter the capacity for room number "<<i<<endl;
cin>> C_AP;
cout<<"Please enter the location for room number "<<i<<endl;
cin>> L_N;
cout<<"Please enter the class name taking place in room number "<<i<<endl;
cin>> C_N;
const char* RN = R_N.c_str();
const char* CAP = C_AP.c_str();
const char* LN = L_N.c_str();
const char* CN = C_N.c_str();
IntoRooms(RN,CAP,LN,CN);
}
}
void FillStudentsTable(){
int NumS;
int i = 0;
cout<<"How many students would you like to add to the record today? "<<endl;
cin>>NumS;
while (i != NumS){
i++;
string id,fn,ln,dob,nn,cs,mn;
cout<<"Please enter the ID number for student number "<<i<<endl;
cin>> id;
cout<<"Please enter only the first name for student number "<<i<<endl;
cin>> fn;
cout<<"Please enter only the last name for student number "<<i<<endl;
cin>> ln;
cout<<"Please enter the date of birth for student number "<<i<<" (dd-mm-yy)"<<endl;
cin>> dob;
cout<<"Please enter the nationality for student number "<<i<<endl;
cin>> nn;
cout<<"Please enter the course name of student number "<<i<<endl;
cin>> cs;
const char* ID = id.c_str();
const char* FN = fn.c_str();
const char* LN = ln.c_str();
const char* DOB = dob.c_str();
const char* NN = nn.c_str();
const char* CS = cs.c_str();
IntoStudents(ID,FN,LN,DOB,NN,CS);
}
}
void FillCoursesTable(){
int NumC;
int i = 0;
cout <<"How many courses would you like to add to the record today? "<<endl;
cin>>NumC;
while (i != NumC){
i++;
string cid,cn;
cout<<"Please enter the course ID for course number "<<i<<endl;
cin >> cid;
cout<<"Please enter the course name for course number "<<i<<endl;
cin >> cn;
const char* CID = cid.c_str();
const char* CN = cn.c_str();
IntoCourses(CID,CN);
}
}
void CheckCourse(){
string cid;
cout<<"Please enter the course ID that you would like to know more about: "<<endl;
cin >> cid;
const char* CID = cid.c_str();
CourseContents(CID);
} //Check All Courses And Their Corresponding Modules
void EnrolledStudents(){
sql = "SELECT STUDENT_ID, COURSE_NAME, COURSE_ID FROM STUDENT, COURSE "
"FROM STUDENT,COURSE "
"WHERE STUDENT.COURSE = COURSE.COURSE_NAME;";
rc = sqlite3_exec(db, sql, callback, 0, &zErrMsg);
} //Check All Enrolled Students
void CheckUniqStudent(){
string sid;
cout<<"Please enter the the student's ID number for their corresponding timetable: "<<endl;
cin >> sid;
const char* SID = sid.c_str();
UniqStudentTT(SID);
} //Check For A Specific student's Time Table
void DeleteRow(const char* TableName, const char* ColoumnName, const char* ID){
char *query = nullptr;
asprintf(&query, "DELETE FROM ''%s'' WHERE '%s' = '%s';",TableName,ColoumnName,ID);
ChecksNSubmission(query);
}
void closeDB(){
sqlite3_close(db);
}
};