void Search( vector<Person> & list, Person p ) { // Search for members in list based on template person p
vector<Person> SearchList; // Create search result vector
for( unsigned int x = 0; x < list.size(); x++) { // Search each entry of list
bool add = true; // We say the entry should be added by default then exclude it based on the template person
if( p.getName() != "" )
if( !list[x].getName().contains( p.getName(), Qt::CaseInsensitive ) )
add = false;
if( p.getGender() != 0 )
if( !(list[x].getGender() == p.getGender() ) )
add = false;
if( p.getBirth().isValid() )
if( !(list[x].getBirth() == p.getBirth() ) )
add = false;
if( p.getDeath().isValid() )
if( !(list[x].getDeath() == p.getDeath() ) )
add = false;
if(add)
SearchList.push_back( list[x] );
}
displayPerson( SearchList ); // Display search results
}
vector<int> addRelation(vector<Person>& p, vector<Computer>& c) {
QTextStream in(stdin);
vector<int> relation;
unsigned int x, y;
QString value;
displayPerson(p);
do{
cout <<"Select a person: ";
cin.ignore();
value = in.readLine();
x = value.toInt();
if( x > p.size() || x < 1 )
cout << "Please choose a number from 1 to " << p.size() << endl;
else
relation.push_back(x);
} while( x > p.size() || x < 1 );
displayComputer(c);
do{
cout << "Select a computer to connect to the chosen person: ";
value = in.readLine();
y = value.toInt();
if( y > c.size() || y < 1 )
cout << "Please choose a number from 1 to " << c.size() << endl;
else
relation.push_back(y);
} while( y > c.size() || y < 1 );
return relation;
}
vector<int> removeRelation(vector<Person>& p, vector<Computer>& c) {
QTextStream in(stdin);
vector<int> relation;
unsigned int x, y;
QString value;
displayPerson(p);
do{
cout <<"Select a person: ";
value = in.readLine();
x = value.toInt();
if(x > p.size() || x < 1)
cout << "Please choose a number from 1 to " << p.size() << endl;
else
relation.push_back(x - 1);
} while(x > p.size() || x < 1);
Person pers = p[x - 1];
vector<Computer> comps;
for(int i = 0; i < pers.getSize(); i++){
for(unsigned int j = 0; j < c.size(); j++){
if(pers.getComputer(i) == c[j].getId()){
comps.push_back(c[j]);
}
}
}
displayComputer(comps);
do{
cout << "Select a connected computer to remove from chosen person: ";
value = in.readLine();
y = value.toInt();
if(y > comps.size() || y < 1)
cout << "Please choose a number from 1 to " << comps.size() << endl;
else{
Computer comp = comps[y - 1];
int z = -1;
while( c[z].getId() != comp.getId() ) {
z++;
if( c[z].getId() == comp.getId() )
relation.push_back(z);
}
}
} while( y > c.size() || y < 1 );
return relation;
}
int main(int argc, char * argv[],char * envp[])
{
char buffer[512]="";
int personDB=open("myDB",O_RDONLY);
struct stat fileInfo;
bool dirtyFlag=false;
char response[10];
int nRecs,i;
struct PERSON *baseAddress;
if(!personDB) { perror("missing myDB database file"); exit(1); }
//Determine the number of records in the file - version 1
fprintf(stdout,"There are %d records in myDB\n",lseek(personDB,0,SEEK_END)/(sizeof(struct PERSON)));
lseek(personDB,0,SEEK_SET); //reset the file pointer to the beginning of the file
//2nd method of determining # of records
stat("myDB",&fileInfo);
fprintf(stdout,"There are %d records in myDB\n",nRecs=(fileInfo.st_size/(sizeof (struct PERSON))));
struct PERSON fileInMemory[nRecs];
read(personDB,fileInMemory,nRecs); //Load the personDB into memory
close(personDB);
while(true)
{
prompt(CLEARSCREEN); goto(0,0);
fprintf(stdout,"1. Sort by name\n");
fprintf(stdout,"2. Sort by age\n");
fprintf(stdout,"3. Sort by rank\n");
fprintf(stdout,"4. Display records\n");
fprintf(stdout,"5. Save to file\n");
fprintf(stdout,"6. Quit\n\n\n");
prompt("Select an action: ");
fgets(response,sizeof response,stdin);
__fpurge(stdin); //Use this for clearing an input buffer
switch(atoi(response))
{
case 1: qsort(fileInMemory,nRecs,sizeof (struct PERSON),sortByName);
dirtyFlag=true;
break;
case 2: qsort(fileInMemory,nRecs,sizeof (struct PERSON),sortByAge);
dirtyFlag=true;
break;
case 3: qsort(fileInMemory,nRecs,sizeof (struct PERSON),sortByRank);
break;
case 4: //Display the records in memory
for(i=0; i<nRecs;i++)
displayPerson(fileInMemory[i]);
prompt("Press return to continue");
fgets(response,sizeof response,stdin);
__fpurge(stdin);
break;
case 5:
if(dirtyFlag) {
personDB=open("myDB", O_WRONLY);
write(personDB,fileInMemory,strlen(buffer));
dirtyFlag=false;
}
break;
case 6: if(dirtyFlag) //exiting the program
{
prompt("File has changed - proceed or cancel (P/C)");
fgets(response,sizeof response,stdin);
__fpurge(stdin);
if(toupper(response[0])=='P') exit(0);
}
} //end of switch
} //end of while
return 0;
}
