updatin

Attribute.cpp

@@ -52,6 +52,11 @@ void Attribute::setName(string s){
 	name = s;
 }
 
+void Attribute::setValue(string s, int index)
+{
+	values[index] = s;
+}
+
 string Attribute::getType(){ 
 	return type; 
 }

Attribute.h

@@ -22,6 +22,7 @@ public:
 	vector<string> getValues();
 	string getName();
 	void setName(string s);
+	void setValue(string s, int index);
 	string getType();
 	bool isKey();
 	int getSize();

DBAppV2.cpp

@@ -0,0 +1,126 @@
+#include <iostream>
+ 
+using namespace std;
+
+/*
+
+void yourAccount()
+{
+	cout<<"name: yourName"<<endl;
+	cout<<"other stuff related to this user\n\n"<<endl;
+	//somehow display user information
+	// int choice;
+	// cin>>choice;
+	cout<<"0. Return to main menu"<<endl;
+	cout<<"\n\nEnter choice:";
+
+}
+
+void goToBoard()
+{
+	cout<<"Board x"<<endl;
+	// int choice;
+	// cin>>choice;
+	cout<<"0. Return to main menu"<<endl;
+	cout<<"\n\nEnter choice:";
+
+}
+
+void boardList()
+{
+	cout<<"Showing all boards:"<<endl;
+	// int choice;
+	// cin>>choice;
+	cout<<"0. Return to main menu"<<endl;
+	cout<<"\n\nEnter choice:";
+
+}
+
+
+void BoardMenu()
+{
+	int choice;
+	cin>>choice;
+	cout<<"Boards will be displayed soon"<<endl;
+	//do some stuff to display boards
+	cout<<"1. List of boards"<<endl;
+	cout<<"2. Go to board (enter shortcut[first few characters])"<<endl;
+	cout<<"0. Return to main menu"<<endl;
+	cout<<"\n\nEnter choice:";
+	switch(choice)
+	{
+		case 1: boardList();
+		case 2: goToBoard();
+	}	
+}
+
+void showMessages()
+{
+	cout<<"Messages will be displayed soon"<<endl;
+	//do some stuff to display messages
+	// int choice;
+	// cin>>choice;
+	cout<<"0. Return to main menu"<<endl;
+	cout<<"\n\nEnter choice:";
+
+}
+
+void showGroups()
+{
+	cout<<"Groups will be displayed soon"<<endl;
+	//do some stuff to display groups
+	// int choice;
+	// cin>>choice;
+	cout<<"0. Return to main menu"<<endl;
+	cout<<"\n\nEnter choice:";
+
+}
+
+void mainMenu()
+{
+	
+	
+		cout<<"***************"<<endl;
+		cout<<"** Main Menu **"<<endl;
+		cout<<"***************\n\n"<<endl;
+		cout<<"1. Your account"<<endl;
+		cout<<"2. Boards"<<endl;	
+		cout<<"3. Messages"<<endl;
+		cout<<"4. Groups\n"<<endl;
+		cout<<"Enter choice: ";
+		int choice;
+		cin>>choice;
+	
+	switch (choice)
+	{
+		case 1: yourAccount();
+		case 2: BoardMenu();
+		case 3:	showMessages();
+		case 4:	showGroups();
+	}
+}
+
+
+int main()
+{
+	cout<<"***************************************"<<endl;
+	cout<<"Welcome to our BBS                     "<<endl;
+	cout<<"***************************************"<<endl;
+	
+	cout<<"** Enter BBS **"<<endl;
+	cout<<"1. Login"<<endl;
+	cout<<"2. Request new account\n\n";
+	cout<<"Enter choice: ";
+	int choice;
+	cin>>choice;
+	
+	
+	if (choice == 1)
+	{
+		cout<<"ramera"<<endl;
+		mainMenu();
+	}
+	else {cout<<"oops";}
+}	
+                                                  
+*/

DBEngine.cpp

@@ -94,7 +94,7 @@ void DBEngine::save(string n){
 		}
 	}
 	
-	//file.close();
+	file.close();
 }
 	
 vector<Relation> DBEngine::getRelations(){ 
@@ -167,18 +167,6 @@ Relation DBEngine::rename(vector<string> newnames, Relation &r)
 		}
 		return r;
 	}
-	/*
-	else if (oldnames != r.getAttributeNames()) {
-		cout << "FAILURE TO RENAME: the attributes to be renamed do not exist in the relation.\n";
-		return;
-	}
-	
-	else {
-		for(int i = 0; i < oldnames.size(); ++i){
-			r.renameAttribute(oldnames[i], newnames[i]);
-		}
-	}
-	*/
 	
 }
 
@@ -230,6 +218,7 @@ Relation DBEngine::setDiff(Relation r1, Relation r2){
 		
 		int size = 0;
 		
+<<<<<<< HEAD
 		for(int x = 0; x < r2.getAttributes().size(); ++x)
 		{
 			for (int i = 0; i < r2.getAttributes()[x].getSize(); ++i)
@@ -257,7 +246,6 @@ Relation DBEngine::setDiff(Relation r1, Relation r2){
 				}
 			}
 		}
-
 		return new_r;
 	}
 }

DBEngine.h

@@ -18,7 +18,6 @@ public:
 	void insertValues(string r, vector <string> v);
 	vector<Relation> getRelations();
 	bool isRelation(string n);
-	//void showTable(Relation r);
 	Relation& getTableFromName(string n);
 	void saveToFile(vector<string> cmds);
 	Relation selection(string attName, string s, Relation r);

Parser.cpp

@@ -19,17 +19,6 @@ vector<string> tokenize(string ss)
 	{
 		output.push_back(tempString);
 	}
-	
-	//testing---------------
-	//cout<<"TokenList: ";
-	
-	// for (int i = 0; i <output.size(); ++i)
-	// {
-		// cout<<output[i]<<"  ";
-	// }
-	// cout << endl;
-	//----------------------
-	
 	return output;
 }
 
@@ -42,328 +31,284 @@ void displayTokenList(vector<string> input)
 	}
 }
 
-Relation condition(vector<string> input, Relation &r)
+Relation condition(vector<string> input, Relation &r, DBEngine &engine)
 {
 	Relation rfinal = r;
 
-	//UNTESTED
+	Attribute a1 = r.getAttributeByName(input[0]);
-	//testing to see if there is an && or || present
+	input.erase(input.begin());
-	if (input.size() > 3) {
+	string op = input[0];
-		//test print
+	input.erase(input.begin());
-		for (int i = 0; i < input.size(); ++i)
+	Attribute a2;
-			cout << "input[i]: " << input[i] << "\n";
+	string c;
-		
+	if(r.isAttribute(input[0]))
-		
+	{
-		//this is probably wrong, added a cout for testing
+		a2 = r.getAttributeByName(input[0]);
-		string bin_op = input[3];
+		input.erase(input.begin());
-		cout << "bin_op, should be && or ||: " << bin_op << "\n";
+		for(int i = 0; i < r.getAttributes().size(); ++i)
-		
+		{
-		//making each half a new vector, probably a better way to do this
+			if(r.getAttributes()[i].getName() == a1.getName())
-		vector<string> firsthalf;
+			{
-		vector<string> secondhalf;
+				int offset = 0;
-		
+				if(op == "==")
-		//again, all untested. it's weird to not test this stuff
+				{
-		for (int i = 0; i < input.size(); ++i){
+					for(int x = 0; x < r.getAttributeByName(a1.getName()).getSize(); ++x)
-			if (i < 3)
+					{
-				firsthalf.push_back(input[i]);
+						if(r.getAttributeByName(a1.getName()).getValues()[x] != r.getAttributeByName(a2.getName()).getValues()[x])
-			else
+						{
-				secondhalf.push_back(input[i]);
+							rfinal.removeTuple(x - offset);
+							offset += 1;
+						}
+					}
+				}
+				else if(op == "!=")
+				{
+					for(int x = 0; x < r.getAttributeByName(a1.getName()).getSize(); ++x)
+					{
+						if(r.getAttributeByName(a1.getName()).getValues()[x] == r.getAttributeByName(a2.getName()).getValues()[x])
+						{
+							rfinal.removeTuple(x - offset);
+							offset += 1;
+						}
+					}
+				}
+				else if(op == ">=")
+				{
+					if(r.getAttributeByName(a1.getName()).getType() == "INTEGER" && r.getAttributeByName(a2.getName()).getType() == "INTEGER")
+					{
+						for(int x = 0; x < r.getAttributeByName(a1.getName()).getSize(); ++x)
+						{
+							if(stoi(r.getAttributeByName(a1.getName()).getValues()[x]) < stoi(r.getAttributeByName(a2.getName()).getValues()[x]))
+							{
+								rfinal.removeTuple(x - offset);
+								offset += 1;
+							}
+						}
+					}
+					else
+					{
+						cout << "Attribute type is not an INTEGER." << endl;
+						exit(1);
+					}
+				}
+				else if(op == "<=")
+				{
+					if(r.getAttributeByName(a1.getName()).getType() == "INTEGER" && r.getAttributeByName(a2.getName()).getType() == "INTEGER")
+					{
+						for(int x = 0; x < r.getAttributeByName(a1.getName()).getSize(); ++x)
+						{
+							if(stoi(r.getAttributeByName(a1.getName()).getValues()[x]) > stoi(r.getAttributeByName(a2.getName()).getValues()[x]))
+							{
+								rfinal.removeTuple(x - offset);
+								offset += 1;
+							}
+						}
+					}
+					else
+					{
+						cout << "Attribute type is not an INTEGER." << endl;
+						exit(1);
+					}
+				}
+				else if(op == ">")
+				{
 					
+					if(r.getAttributeByName(a1.getName()).getType() == "INTEGER" && r.getAttributeByName(a2.getName()).getType() == "INTEGER")
+					{
+						for(int x = 0; x < r.getAttributeByName(a1.getName()).getSize(); ++x)
+						{
+							if(stoi(r.getAttributeByName(a1.getName()).getValues()[x]) <= stoi(r.getAttributeByName(a2.getName()).getValues()[x]))
+							{
+								rfinal.removeTuple(x - offset);
+								offset += 1;
+							}
+						}
+					}
+					else
+					{
+						cout << "Attribute type is not an INTEGER." << endl;
+						exit(1);
+					}
+				}
+				else if(op == "<")
+				{
+					if(r.getAttributeByName(a1.getName()).getType() == "INTEGER" && r.getAttributeByName(a2.getName()).getType() == "INTEGER")
+					{
+						for(int x = 0; x < r.getAttributeByName(a1.getName()).getSize(); ++x)
+						{
+							if(stoi(r.getAttributeByName(a1.getName()).getValues()[x]) >= stoi(r.getAttributeByName(a2.getName()).getValues()[x]))
+							{
+								rfinal.removeTuple(x - offset);
+								offset += 1;
+							}
+						}
+					}
+					else
+					{
+						cout << "Attribute type is not an INTEGER." << endl;
+						exit(1);
+					}
+				}
+			}
 		}
-		
-		//calling condition again with each half
-		Relation r1 = condition(firsthalf, rfinal);
-		Relation r2 = condition(secondhalf, rfinal);
-		
-		//NO IDEA IF THIS ACTUALLY WORKS
-		//HOORAY
-		//HOW THE FUCK DO PEOPLE CODE LIKE THIS
-		if (bin_op == "&&"){
-			//with engine as the DBEngine object that maybe exists
-			return engine.crossProduct(r1, r2);
-		}
-		
-		else if (bin_op == "||"){
-			//with engine as the DBEngine object that maybe exists
-			return engine.setUnion(r1, r2);
-		}
-		
-		else {
-			cout << "Something strange happened. bin_op: " << bin_op << "\n";
-			cout << "Returning the initial relation.";
-			return rfinal;
-		}
-			
 	}
-	
+	else if(input[0].at(0) == '\"')
-	else {
+	{
-	
+		c = input[0].substr(1, input[0].find_last_of("\"") - 1);
-		Attribute a1 = r.getAttributeByName(input[0]);
 		input.erase(input.begin());
-		string op = input[0];
+		int offset = 0;
-		input.erase(input.begin());
+		//input.erase(input.begin());
-		Attribute a2;
+		if(op == "==")
-		string c;
-		//cout << input[0] << endl;
-		if(input[0].at(0) == '\"')
 		{
-			c = input[0].substr(1, input[0].find_last_of("\"") - 1);
-			//cout << c << endl;
-		}
-		if(r.isAttribute(input[0]))
-		{
-			a2 = r.getAttributeByName(input[0]);
-			input.erase(input.begin());
 			for(int i = 0; i < r.getAttributes().size(); ++i)
 			{
 				if(r.getAttributes()[i].getName() == a1.getName())
 				{
-					/*
+					for(int j = 0; j < r.getAttributeByName(a1.getName()).getValues().size(); ++j)
-					for(int j = 0; j < r.getAttributeByName(a1.getName()).getValues().size; ++j)
 					{
-						if(r.getAttributeByName(a1.getName()).getValues()[j] == )
+						if(r.getAttributeByName(a1.getName()).getValues()[j] != c)
 						{
-							rfinal.insertTuple(r.getTuple(j));
+							rfinal.removeTuple(j - offset);
-						}
+							offset += 1;
-					}*/
-					if(op == "==")
-					{
-						for(int x = 0; x < r.getAttributeByName(a1.getName()).getSize(); ++x)
-						{
-							if(r.getAttributeByName(a1.getName()).getValues()[x] != r.getAttributeByName(a2.getName()).getValues()[x])
-							{
-								rfinal.removeTuple(x);
-								//rfinal.insertAttributes(a);
-							}
-						}
-					}
-					else if(op == "!=")
-					{
-						for(int x = 0; x < r.getAttributeByName(a1.getName()).getSize(); ++x)
-						{
-							if(r.getAttributeByName(a1.getName()).getValues()[x] == r.getAttributeByName(a2.getName()).getValues()[x])
-							{
-								rfinal.removeTuple(x);
-								//rfinal.insertAttributes(a);
-							}
-						}
-					}
-					else if(op == ">=")
-					{
-						if(r.getAttributeByName(a1.getName()).getType() == "INTEGER" && r.getAttributeByName(a2.getName()).getType() == "INTEGER")
-						{
-							for(int x = 0; x < r.getAttributeByName(a1.getName()).getSize(); ++x)
-							{
-								if(stoi(r.getAttributeByName(a1.getName()).getValues()[x]) < stoi(r.getAttributeByName(a2.getName()).getValues()[x]))
-								{
-									rfinal.removeTuple(x);
-									//rfinal.insertAttributes(a);
-								}
-							}
-						}
-						else
-						{
-							cout << "Attribute type is not an INTEGER." << endl;
-							exit(1);
-						}
-					}
-					else if(op == "<=")
-					{
-						if(r.getAttributeByName(a1.getName()).getType() == "INTEGER" && r.getAttributeByName(a2.getName()).getType() == "INTEGER")
-						{
-							for(int x = 0; x < r.getAttributeByName(a1.getName()).getSize(); ++x)
-							{
-								if(stoi(r.getAttributeByName(a1.getName()).getValues()[x]) > stoi(r.getAttributeByName(a2.getName()).getValues()[x]))
-								{
-									rfinal.removeTuple(x);
-									//rfinal.insertAttributes(a);
-								}
-							}
-						}
-						else
-						{
-							cout << "Attribute type is not an INTEGER." << endl;
-							exit(1);
-						}
-					}
-					else if(op == ">")
-					{
-						
-						if(r.getAttributeByName(a1.getName()).getType() == "INTEGER" && r.getAttributeByName(a2.getName()).getType() == "INTEGER")
-						{
-							for(int x = 0; x < r.getAttributeByName(a1.getName()).getSize(); ++x)
-							{
-								if(stoi(r.getAttributeByName(a1.getName()).getValues()[x]) <= stoi(r.getAttributeByName(a2.getName()).getValues()[x]))
-								{
-									rfinal.removeTuple(x);
-									//rfinal.insertAttributes(a);
-								}
-							}
-						}
-						else
-						{
-							cout << "Attribute type is not an INTEGER." << endl;
-							exit(1);
-						}
-					}
-					else if(op == "<")
-					{
-						if(r.getAttributeByName(a1.getName()).getType() == "INTEGER" && r.getAttributeByName(a2.getName()).getType() == "INTEGER")
-						{
-							for(int x = 0; x < r.getAttributeByName(a1.getName()).getSize(); ++x)
-							{
-								if(stoi(r.getAttributeByName(a1.getName()).getValues()[x]) >= stoi(r.getAttributeByName(a2.getName()).getValues()[x]))
-								{
-									rfinal.removeTuple(x);
-									//rfinal.insertAttributes(a);
-								}
-							}
-						}
-						else
-						{
-							cout << "Attribute type is not an INTEGER." << endl;
-							exit(1);
 						}
 					}
 				}
 			}
 		}
-		else
+		else if(op == "!=")
 		{
-			input.erase(input.begin());
+			for(int i = 0; i < r.getAttributes().size(); ++i)
-			if(op == "==")
 			{
-				for(int i = 0; i < r.getAttributes().size(); ++i)
+				if(r.getAttributes()[i].getName() == a1.getName())
 				{
-					if(r.getAttributes()[i].getName() == a1.getName())
+					for(int j = 0; j < r.getAttributeByName(a1.getName()).getValues().size(); ++j)
 					{
-						for(int j = 0; j < r.getAttributeByName(a1.getName()).getValues().size(); ++j)
+						if(r.getAttributeByName(a1.getName()).getValues()[j] == c)
 						{
-							if(r.getAttributeByName(a1.getName()).getValues()[j] != c)
+							rfinal.removeTuple(j - offset);
-							{
+							offset += 1;
-								rfinal.removeTuple(j);
-							}
 						}
 					}
 				}
 			}
-			else if(op == "!=")
-			{
-				for(int i = 0; i < r.getAttributes().size(); ++i)
-				{
-					if(r.getAttributes()[i].getName() == a1.getName())
-					{
-						for(int j = 0; j < r.getAttributeByName(a1.getName()).getValues().size(); ++j)
-						{
-							if(r.getAttributeByName(a1.getName()).getValues()[j] == c)
-							{
-								rfinal.removeTuple(j);
-							}
-						}
-					}
-				}
-			}
-			else if(op == ">=")
-			{
-				if(r.getAttributeByName(a1.getName()).getType() == "INTEGER")
-				{
-					for(int i = 0; i < r.getAttributes().size(); ++i)
-					{
-						if(r.getAttributes()[i].getName() == a1.getName())
-						{
-							for(int j = 0; j < r.getAttributeByName(a1.getName()).getValues().size(); ++j)
-							{
-								if(stoi(r.getAttributeByName(a1.getName()).getValues()[j]) < stoi(c))
-								{
-									rfinal.removeTuple(j);
-								}
-							}
-						}
-					}
-				}
-				else
-				{
-					cout << "Attribute type is not an INTEGER." << endl;
-					exit(1);
-				}
-			}
-			else if(op == "<=")
-			{
-				if(r.getAttributeByName(a1.getName()).getType() == "INTEGER")
-				{
-					for(int i = 0; i < r.getAttributes().size(); ++i)
-					{
-						if(r.getAttributes()[i].getName() == a1.getName())
-						{
-							for(int j = 0; j < r.getAttributeByName(a1.getName()).getValues().size(); ++j)
-							{
-								if(stoi(r.getAttributeByName(a1.getName()).getValues()[j]) > stoi(c))
-								{
-									rfinal.removeTuple(j);
-								}
-							}
-						}
-					}
-				}
-				else
-				{
-					cout << "Attribute type is not an INTEGER." << endl;
-					exit(1);
-				}
-			}
-			else if(op == ">")
-			{
-				
-				if(r.getAttributeByName(a1.getName()).getType() == "INTEGER")
-				{
-					for(int i = 0; i < r.getAttributes().size(); ++i)
-					{
-						if(r.getAttributes()[i].getName() == a1.getName())
-						{
-							for(int j = 0; j < r.getAttributeByName(a1.getName()).getValues().size(); ++j)
-							{
-								if(stoi(r.getAttributeByName(a1.getName()).getValues()[j]) <= stoi(c))
-								{
-									rfinal.removeTuple(j);
-								}
-							}
-						}
-					}
-				}
-				else
-				{
-					cout << "Attribute type is not an INTEGER." << endl;
-					exit(1);
-				}
-			}
-			else if(op == "<")
-			{
-				
-				if(r.getAttributeByName(a1.getName()).getType() == "INTEGER")
-				{
-					for(int i = 0; i < r.getAttributes().size(); ++i)
-					{
-						if(r.getAttributes()[i].getName() == a1.getName())
-						{
-							for(int j = 0; j < r.getAttributeByName(a1.getName()).getValues().size(); ++j)
-							{
-								if(stoi(r.getAttributeByName(a1.getName()).getValues()[j]) >= stoi(c))
-								{
-									rfinal.removeTuple(j);
-								}
-							}
-						}
-					}
-				}
-				else
-				{
-					cout << "Attribute type is not an INTEGER." << endl;
-					exit(1);
-				}
-			}
 		}
-		return rfinal;
+		else if(op == ">=")
+		{
+			if(r.getAttributeByName(a1.getName()).getType() == "INTEGER")
+			{
+				for(int i = 0; i < r.getAttributes().size(); ++i)
+				{
+					if(r.getAttributes()[i].getName() == a1.getName())
+					{
+						for(int j = 0; j < r.getAttributeByName(a1.getName()).getValues().size(); ++j)
+						{
+							if(stoi(r.getAttributeByName(a1.getName()).getValues()[j]) < stoi(c))
+							{
+								rfinal.removeTuple(j - offset);
+								offset += 1;
+							}
+						}
+					}
+				}
+			}
+			else
+			{
+				cout << "Attribute type is not an INTEGER." << endl;
+				exit(1);
+			}
+		}
+		else if(op == "<=")
+		{
+			if(r.getAttributeByName(a1.getName()).getType() == "INTEGER")
+			{
+				for(int i = 0; i < r.getAttributes().size(); ++i)
+				{
+					if(r.getAttributes()[i].getName() == a1.getName())
+					{
+						for(int j = 0; j < r.getAttributeByName(a1.getName()).getValues().size(); ++j)
+						{
+							if(stoi(r.getAttributeByName(a1.getName()).getValues()[j]) > stoi(c))
+							{
+								rfinal.removeTuple(j - offset);
+								offset += 1;
+							}
+						}
+					}
+				}
+			}
+			else
+			{
+				cout << "Attribute type is not an INTEGER." << endl;
+				exit(1);
+			}
+		}
+		else if(op == ">")
+		{
+			
+			if(r.getAttributeByName(a1.getName()).getType() == "INTEGER")
+			{
+				for(int i = 0; i < r.getAttributes().size(); ++i)
+				{
+					if(r.getAttributes()[i].getName() == a1.getName())
+					{
+						for(int j = 0; j < r.getAttributeByName(a1.getName()).getValues().size(); ++j)
+						{
+							if(stoi(r.getAttributeByName(a1.getName()).getValues()[j]) <= stoi(c))
+							{
+								rfinal.removeTuple(j - offset);
+								offset += 1;
+							}
+						}
+					}
+				}
+			}
+			else
+			{
+				cout << "Attribute type is not an INTEGER." << endl;
+				exit(1);
+			}
+		}
+		else if(op == "<")
+		{
+			
+			if(r.getAttributeByName(a1.getName()).getType() == "INTEGER")
+			{
+				for(int i = 0; i < r.getAttributes().size(); ++i)
+				{
+					if(r.getAttributes()[i].getName() == a1.getName())
+					{
+						for(int j = 0; j < r.getAttributeByName(a1.getName()).getValues().size(); ++j)
+						{
+							if(stoi(r.getAttributeByName(a1.getName()).getValues()[j]) >= stoi(c))
+							{
+								rfinal.removeTuple(j - offset);
+								offset += 1;
+							}
+						}
+					}
+				}
+			}
+			else
+			{
+				cout << "Attribute type is not an INTEGER." << endl;
+				exit(1);
+			}
+		}
 	}
+	if(input[0] == "&&")
+	{
+		input.erase(input.begin());
+		Relation rtemp = rfinal;
+		rfinal = condition(input, rtemp, engine);
+	}
+	else if(input[0] == "||")
+	{
+		input.erase(input.begin());
+		Relation rtemp = rfinal;
+		Relation rtemp2 = condition(input, r, engine);
+		rfinal = engine.setUnion(rtemp, rtemp2);
+	}
+	return rfinal;
 }
 
 tuple<vector<string>, Relation> expression(vector<string> input, DBEngine &engine)
@@ -372,10 +317,6 @@ tuple<vector<string>, Relation> expression(vector<string> input, DBEngine &engin
 	tuple<vector<string>, Relation> t(input, rfinal);
 	if(input[0] == "select")
 	{
-		/*
-		cout << "Not yet implemented." << endl;
-		exit(1);
-		*/
 		input.erase(input.begin());
 		vector<string> s;
 		Relation r("TEMP");
@@ -390,13 +331,13 @@ tuple<vector<string>, Relation> expression(vector<string> input, DBEngine &engin
 			input.erase(input.begin());
 			if(engine.isRelation(input[0]))
 			{
-				r = condition(s, engine.getTableFromName(input[0]));
+				r = condition(s, engine.getTableFromName(input[0]), engine);
 				input.erase(input.begin());
 			}
 			else if(input[0] == "(")
 			{
 				tuple<vector<string>, Relation> t = expression(input, engine);
-				r = condition(s, get<1>(t));
+				r = condition(s, get<1>(t), engine);
 				input.erase(input.begin());
 			}
 		}
@@ -425,16 +366,13 @@ tuple<vector<string>, Relation> expression(vector<string> input, DBEngine &engin
 				input.erase(input.begin());
 				get<0>(t) = input;
 				get<1>(t) = rfinal;
-				//cout << rfinal.getSize() << endl;
 				return t;
 			}
 			else if(input[0] == "(")
 			{
 				t = expression(input, engine);
 				rfinal = engine.projection(temp, get<1>(t));
-				//get<0>(t) = input;
 				get<1>(t) = rfinal;
-				//cout << rfinal.getSize() << endl;
 				return t;
 			}
 		}
@@ -642,12 +580,6 @@ tuple<vector<string>, Relation> expression(vector<string> input, DBEngine &engin
 
 vector<string> showCMD(vector<string> input, DBEngine &engine)
 {
-	/*
-	if (input.size() > 3)
-	{
-		cout<<"Syntax error!"<<endl;
-	}
-	*/
 	
 	if(engine.isRelation(input[0]))
 	{
@@ -670,41 +602,7 @@ vector<string> saveCMD(vector<string> input, DBEngine &engine)
 	{
 		cout<<"Syntax error!"<<endl;
 	}
-	
-	//PRelation pr(input[0]);
-	
-	// send save command to DBEngine
 	engine.save(input[0]);
-	/*
-	Relation r = engine.getTableFromName(input[0]);
-	ofstream output;
-	string name = r.getTableName() + ".txt";
-	output.open(name);
-	
-	output << "--------------------------\n";
-	output << r.getTableName() << "\n\n";
-	vector <Attribute> att = r.getAttributes();
-	for (int i = 0; i < att.size(); ++i)
-	{
-		output << "-------------\n";
-		output << att[i].getName() << "\n" << att[i].getType();
-		if(att[i].getType() == "VARCHAR")
-		{
-			output << "(" << att[i].getSize() << ")";
-		}
-		output << "\n\n";
-		
-		vector<string> values = att[i].getValues();
-		vector<string>::iterator it = values.begin();
-		while (it != values.end())
-		{
-			output << *it << "\n";
-			it++;
-		}
-		output << "-------------\n";
-	}
-	output << "\n--------------------------";
-	*/
 	input.erase(input.begin());
 	
 	return input;
@@ -716,10 +614,6 @@ vector<string> closeCMD(vector<string> input, DBEngine &engine)
 	{
 		cout<<"Syntax error!"<<endl;
 	}
-	
-	//PRelation r(input[0]);
-	
-	// send close command to DBEngine	
 	engine.deleteRelation(input[0]);
 	input.erase(input.begin());
 	
@@ -732,10 +626,6 @@ vector<string> openCMD(vector<string> input, DBEngine &engine)
 	{
 		cout<<"Syntax error!"<<endl;
 	}
-	
-	//PRelation r(input[0]);
-	
-	// send open command to DBEngine
 	string name = input[0] + ".txt";
 	ifstream file;
 	file.open(name);
@@ -760,7 +650,6 @@ vector<string> exitCMD(vector<string> input, DBEngine &engine)
 
 vector<string> createCMD(vector<string> input, DBEngine &engine)
 {
-	//relation name will be the first element of the vector of data returned by this function
 	
 	if (input[0] == "TABLE")
 	{
@@ -775,8 +664,6 @@ vector<string> createCMD(vector<string> input, DBEngine &engine)
 		{			
 			input.erase(input.begin());
 			
-			//vector <PExpression> e1;
-			
 			vector <PAttribute> a;
 			
 			while(input[0] != ")")	//inserting all values to relation
@@ -807,8 +694,6 @@ vector<string> createCMD(vector<string> input, DBEngine &engine)
 				a.push_back(temp);
 			}
 			
-			//vector <PAttribute> apk; //save primary keys temp storage
-			
 			if(input[0] == "PRIMARY" && input[1] == "KEY")
 			{
 				input.erase(input.begin());
@@ -819,17 +704,12 @@ vector<string> createCMD(vector<string> input, DBEngine &engine)
 				
 					while(input[0] != ")")	//inserting all values to relation
 					{
-						//PAttribute temp;
 						
 						if (input[0] == ",")
 						{
 							input.erase(input.begin());
 						}
 						
-						//temp.setPAttributeName(input[0]);
-						
-						//apk.push_back(temp);
-						
 						for(int i = 0; i < a.size(); ++i)
 						{
 							if(input[0] == a[i].getPAttribute())
@@ -917,7 +797,6 @@ vector<string> insertCMD(vector<string> input, DBEngine &engine)
 						if(input[0].at(0) == '\"')
 						{
 							s.push_back(input[0].substr(1,input[0].find_last_of("\"") - 1 ));
-							//engine.getTableFromName(pr.getName()).getAttributes()[i].display();
 							input.erase(input.begin());
 						}
 						else
@@ -996,13 +875,17 @@ vector<string> insertCMD(vector<string> input, DBEngine &engine)
 
 vector<string> updateCMD(vector<string> input, DBEngine &engine)
 {
-	PRelation r(input[0]);
+	Relation r = engine.getTableFromName(input[0]);
+	Relation rcond("TEMP");
+	Relation rfinal("TEMP");
 	
 	input.erase(input.begin());
 	
 	if(input[0] == "SET")
 	{
 		input.erase(input.begin());
+		vector <Attribute> a = r.getAttributes();
+		
 			
 		//parse out ( and send everything until ) into an Expression vector
 		if(input[0] == "(")
@@ -1020,8 +903,6 @@ vector<string> updateCMD(vector<string> input, DBEngine &engine)
 			while(input[0] != ")")
 			{
 				temp.setPAttributeName(input[0]);
-				a.push_back(temp);
-				temp.setPAttributeName("~");
 				
 				input.erase(input.begin());
 				
@@ -1030,6 +911,15 @@ vector<string> updateCMD(vector<string> input, DBEngine &engine)
 					input.erase(input.begin());
 					
 					s.push_back(input[0]);
+					
+					if(input[0].at(0) == '\"')
+					{
+						s.push_back(input[0].substr(1, input[0].find_last_of("\"")));
+					}
+					else
+					{
+						s.push_back(input[0]);
+					}
 				}
 				
 				else
@@ -1041,34 +931,27 @@ vector<string> updateCMD(vector<string> input, DBEngine &engine)
 				{
 					input.erase(input.begin());
 				}
+				
+				a.push_back(temp);
+				temp.setPAttributeName("~");
 			}
+			
 		}
 		
 		if(input[0] == "WHERE")
 		{
+			vector<string> s;
 			if(input[0] == "(")
 			{
-				//PCondition c;
+				input.erase(input.begin());
-				
-				PComparison c;
-				POperand oops1;
-				POperand oops2;
-				POp op;
-				
 				while(input[0] != ")")
 				{
-					oops1.setPOperand(input[0]);
+					s.push_back(input[0]);
 					input.erase(input.begin());
-					
-					oops2.setPOperand(input[0]);
-					input.erase(input.begin());
-					
-					op.setPOp(input[0]);
-					input.erase(input.begin());
-					
-					c.setPComparison(oops1.getPOperand(), op.getPOp(), oops2.getPOperand());
 				}
+				rcond = condition(s, r, engine);
 			}
+			
 		}
 		
 		// send update command to DBEngine
@@ -1128,7 +1011,6 @@ vector<string> query(vector<string> input, DBEngine &engine)
 	tuple<vector<string>, Relation> t = expression(input, engine);
 	Relation r = get<1>(t);
 	r.setTableName(pr.getName());
-	//r.display();
 	input = get<0>(t);
 	
 	engine.createTable(r);
@@ -1157,8 +1039,6 @@ void par_line(vector<string> input, DBEngine &engine) //calls par_command() or p
 			cout<<"\nPassing the following arguments to dbEngine: \nCommand: "<<input[0]<<endl;
 			input.erase(input.begin());
 			vector<string> insertInput = insertCMD(input, engine);
-			//cout<<"arguments: "<<endl;
-			//displayTokenList(insertInput);
 			
 		}
 		
@@ -1168,8 +1048,6 @@ void par_line(vector<string> input, DBEngine &engine) //calls par_command() or p
 			input.erase(input.begin());
 			
 			vector<string> insertInput = createCMD(input, engine);
-			//cout<<"arguments: "<<endl;
-			//displayTokenList(insertInput);
 			
 		}
 		
@@ -1179,8 +1057,6 @@ void par_line(vector<string> input, DBEngine &engine) //calls par_command() or p
 			input.erase(input.begin());
 			
 			vector<string> insertInput = deleteCMD(input, engine);
-			//cout<<"arguments: "<<endl;
-			//displayTokenList(insertInput);
 			
 		}
 		
@@ -1190,8 +1066,6 @@ void par_line(vector<string> input, DBEngine &engine) //calls par_command() or p
 			input.erase(input.begin());
 			
 			vector<string> insertInput = updateCMD(input, engine);
-			//cout<<"arguments: "<<endl;
-			//displayTokenList(insertInput);
 			
 		}
 			
@@ -1250,22 +1124,3 @@ void parse(string input, DBEngine &engine)
 	vector<string> listOfTokens = tokenize(input);
 	par_line(listOfTokens, engine);
 }
-/*
-int main () {
-
-	
-	string ss = "INSERT INTO animals VALUES FROM  ( Joe , cat , 4 ) ;";
-	string ss2 = "SHOW Dogs ;";
-	string ss3 = "EXIT ; ";
-	
-	vector<string> listOfTokens = tokenize(ss);
-	vector<string> listOfTokens2 = tokenize(ss2);
-	vector<string> listOfTokens3 = tokenize(ss3);
-	
-	par_line(listOfTokens);
-	par_line(listOfTokens2);
-	par_line(listOfTokens3);
-	
-		
-}
-*/

Parser.h

@@ -416,493 +416,4 @@ class PExpression
 		}
 };
 
-/*
-vector<string> tokenize(string ss)
-{
-	
-	string tempString;
-	stringstream lineStream(ss);
-	vector<string> output;
-	
-	while (lineStream >> tempString)
-	{
-		output.push_back(tempString);
-	}
-	
-	//testing---------------
-	cout<<"TokenList: ";
-	
-	for (int i = 0; i <output.size(); ++i)
-	{
-		cout<<output[i]<<"  ";
-	}
-	//----------------------
-	
-	return output;
-}
-
-void displayTokenList(vector<string> input)
-{
-	cout<<"TokenList: "<<endl;
-	for (int i = 0; i < input.size(); ++i)
-	{
-		cout<<input[i]<<endl;
-	}
-}
-
-vector<string> showCMD(vector<string> input)
-{
-	if (input.size() > 3)
-	{
-		cout<<"Syntax error!"<<endl;
-	}
-	
-	PRelation r(input[0]);
-	
-	// send show command to DBEngine
-	
-	return input;
-}
-
-vector<string> saveCMD(vector<string> input)
-{
-	if (input.size() > 3)
-	{
-		cout<<"Syntax error!"<<endl;
-	}
-	
-	PRelation r(input[0]);
-	
-	// send save command to DBEngine
-	
-	return input;
-}
-
-vector<string> closeCMD(vector<string> input)
-{
-	if (input.size() > 3)
-	{
-		cout<<"Syntax error!"<<endl;
-	}
-	
-	PRelation r(input[0]);
-	
-	// send close command to DBEngine	
-	
-	return input;
-}
-
-vector<string> openCMD(vector<string> input)
-{
-	if (input.size() > 2)
-	{
-		cout<<"Syntax error!"<<endl;
-	}
-	
-	PRelation r(input[0]);
-	
-	// send open command to DBEngine
-	
-	return input;
-}
-
-vector<string> exitCMD(vector<string> input)
-{
-	if (input[1] != ";")
-	{
-		cout<<"ERROR: missing semicolon!"<<endl;
-	}
-	
-	if (input[0] != "EXIT") { cout<<"Wrong function/syntax error!"<<endl;}
-	cout<<"Passing command: "<<input[0]<<endl;
-	
-	return input;
-}
-
-
-vector<string> createCMD(vector<string> input)
-{
-	//relation name will be the first element of the vector of data returned by this function
-	
-	if (input[0] == "CREATE" && input[1] == "TABLE")
-	{
-		input.erase(input.begin());
-		input.erase(input.begin());
-		
-		PRelation r;
-		r.setPRelation(input[0]);
-		
-		input.erase(input.begin());
-		
-		if(input[0] == "(")
-		{			
-			input.erase(input.begin());
-			
-			//vector <PExpression> e1;
-			
-			vector <PAttribute> a;
-			
-			while(input[0] != ")")	//inserting all values to relation
-			{
-				PAttribute temp;
-				
-				if (input[0] == ",")
-				{
-					input.erase(input.begin());
-				}
-				
-				temp.setPAttributeName(input[0]);
-				
-				input.erase(input.begin());
-				
-				if(input[0] == "INTEGER")
-				{
-					temp.setPAttributeType(input[0]);
-					input.erase(input.begin());
-				}
-				else
-				{
-					temp.setPAttributeType(input[0].substr(0,input[0].find("("))); 
-					temp.setPAttributeSize(stoi(input[0].substr(input[0].find("("), input[0].find(")"))));
-					input.erase(input.begin());	
-				}
-				
-				a.push_back(temp);
-			}
-			
-			vector <PAttribute> apk; //save primary keys temp storage
-			
-			if(input[0] == "PRIMARY" && input[1] == "KEY")
-			{
-				input.erase(input.begin());
-				input.erase(input.begin());
-				
-				if(input[0] == "(")
-				{
-				
-					while(input[0] != ")")	//inserting all values to relation
-					{
-						PAttribute temp;
-						
-						if (input[0] == ",")
-						{
-							input.erase(input.begin());
-						}
-						
-						temp.setPAttributeName(input[0]);
-						
-						apk.push_back(temp);
-						
-						input.erase(input.begin());
-					}
-					
-					
-				
-					return input;
-				}
-			}
-		}
-			
-		else cout<<"Syntax error!"<<endl;
-	}
-	else cout<<"Syntax error!"<<endl;
-	
-}
-
-vector<string> insertCMD(vector<string> input)
-{
-	//relation name will be the first element of the vector of data returned by this function
-		
-	if (input[0] == "INTO")
-	{
-		input.erase(input.begin());
-		
-		PRelation r(input[0]);
-		
-		input.erase(input.begin());
-		
-		vector <string> s;
-		
-		if (input[0] == "VALUES" && input[1] == "FROM")
-		{
-			input.erase(input.begin());
-			input.erase(input.begin());
-			
-			
-			if(input[0] == "(")
-			{
-				if(input[0].at(0) == '\"')
-				{
-					s.push_back(input[0].substr(1,input[0].find_last_of("\"")));
-				}
-				vector <PExpression> e;
-				input.erase(input.begin());
-				
-				while(input[0] != ")")	//inserting all values to relation
-				//for (int i = 0; i < 2; ++i)
-				{
-					if (input[0] == ",") input.erase(input.begin());
-					
-					e.push_back(input[0]);
-					
-					input.erase(input.begin());
-				}
-				
-				cout << "Inserting: ";
-				while(!e.empty())
-				{
-					cout << e[0].getPExpression() << " ";
-					e.erase(e.begin());
-				}
-				cout << "into " << r.getName() << ".\n";
-				
-				return input;
-				
-			}
-			
-			else if (input[0] == "RELATION")
-			{
-				input.erase(input.begin());
-				
-				PExpression e;
-				
-				while(input[0] != ";")
-				{
-					e.setPExpression(e.getPExpression() + input[0]);
-				}
-				
-				cout << "Inserting: " << e.getPExpression() << " into " << r.getName() << ".\n";
-				
-				return input;
-			}
-			
-			else cout<<"Syntax error!"<<endl;
-		}
-		
-		cout<<"Syntax error!"<<endl;
-		
-	}
-	
-	else cout<<"Syntax error!"<<endl;
-	
-}
-
-vector<string> updateCMD(vector<string> input)
-{
-	PRelation r(input[0]);
-	
-	input.erase(input.begin());
-	
-	if(input[0] == "SET")
-	{
-		input.erase(input.begin());
-		
-		//parse out ( and send everything until ) into an Expression vector
-		if(input[0] == "(")
-		{
-			
-			vector <PAttribute> a;
-			PAttribute temp;
-			
-			vector <string> s;
-			
-			//vector <PExpression> e;
-			
-			input.erase(input.begin());
-			
-			while(input[0] != ")")
-			{
-				temp.setPAttributeName(input[0]);
-				a.push_back(temp);
-				temp.setPAttributeName("~");
-				
-				input.erase(input.begin());
-				
-				if(input[0] == "=")
-				{
-					input.erase(input.begin());
-					
-					s.push_back(input[0]);
-				}
-				
-				else
-				{
-					cout<<"Syntax error!"<<endl;
-				}
-				
-				if(input[0] == ",")
-				{
-					input.erase(input.begin());
-				}
-			}
-		}
-		
-		if(input[0] == "WHERE")
-		{
-			if(input[0] == "(")
-			{
-				//PCondition c;
-				
-				PComparison c;
-				POperand oops1;
-				POperand oops2;
-				POp op;
-				
-				while(input[0] != ")")
-				{
-					oops1.setPOperand(input[0]);
-					input.erase(input.begin());
-					
-					oops2.setPOperand(input[0]);
-					input.erase(input.begin());
-					
-					op.setPOp(input[0]);
-					input.erase(input.begin());
-					
-					c.setPComparison(oops1.getPOperand(), op.getPOp(), oops2.getPOperand());
-				}
-			}
-		}
-		
-		// send update command to DBEngine
-	}
-	
-	else cout<<"Syntax error!"<<endl;
-}
-
-vector<string> deleteCMD(vector<string> input)
-{
-	if (input[0] == "DELETE" && input[1] == "FROM")
-	{
-		input.erase(input.begin());
-		input.erase(input.begin());
-		
-		PRelation r(input[0]);
-		
-		if(input[0] == "WHERE")
-		{
-			if(input[0] == "(")
-			{
-				//PCondition c;
-				
-				PComparison c;
-				POperand oops1;
-				POperand oops2;
-				POp op;
-				
-				while(input[0] != ")")
-				{
-					oops1.setPOperand(input[0]);
-					input.erase(input.begin());
-					
-					oops2.setPOperand(input[0]);
-					input.erase(input.begin());
-					
-					op.setPOp(input[0]);
-					input.erase(input.begin());
-					
-					c.setPComparison(oops1.getPOperand(), op.getPOp(), oops2.getPOperand());
-				}
-			}
-		}
-		
-		// send delete command to DBEngine
-	}
-	else cout<<"Syntax error!"<<endl;
-}
-
-void par_line(vector<string> input)	//calls par_command() or par_query() depending on first item from token list
-{
-/*
-• Match the first item in the token list and determine weather this is a command or a query.
-• Call functions par_command() or par_query();
-• After either par_command() or par_query() returns, make sure the line ends properly with “;” token
-
-	string tempChar = input.back();
-	
-	if (tempChar != ";")
-	{
-		cout<<"ERROR! missing semicolon "<<endl;
-	}
-	
-	else
-	{
-		if ( input[0] == "INSERT")
-		{
-			cout<<"\nPassing the following arguments to dbEngine: \nCommand: "<<input[0]<<endl;
-			input.erase(input.begin());
-			vector<string> insertInput = insertCMD(input);
-			cout<<"arguments: "<<endl;
-			displayTokenList(insertInput);
-			
-		}
-		
-		if ( input[0] == "CREATE")
-		{
-			cout<<"\nPassing the following arguments to dbEngine: \nCommand: "<<input[0]<<endl;
-			input.erase(input.begin());
-			
-			vector<string> insertInput = createCMD(input);
-			cout<<"arguments: "<<endl;
-			displayTokenList(insertInput);
-			
-		}
-		
-		if ( input[0] == "DELETE")
-		{
-			cout<<"\nPassing the following arguments to dbEngine: \nCommand: "<<input[0]<<endl;
-			input.erase(input.begin());
-			
-			vector<string> insertInput = deleteCMD(input);
-			cout<<"arguments: "<<endl;
-			displayTokenList(insertInput);
-			
-		}
-		
-		if ( input[0] == "UPDATE")
-		{
-			cout<<"\nPassing the following arguments to dbEngine: \nCommand: "<<input[0]<<endl;
-			input.erase(input.begin());
-			
-			vector<string> insertInput = updateCMD(input);
-			cout<<"arguments: "<<endl;
-			displayTokenList(insertInput);
-			
-		}
-			
-		if ( input[0] == "SHOW")
-		{
-			showCMD(input);			
-		}
-		
-		if ( input[0] == "EXIT")
-		{
-			exitCMD(input);			
-		}
-		
-		if ( input[0] == "OPEN")
-		{
-			openCMD(input);			
-		}
-		
-		if ( input[0] == "SAVE")
-		{
-			saveCMD(input);			
-		}
-		
-		if ( input[0] == "CLOSE")
-		{
-			closeCMD(input);			
-		}
-	}
-}
-
-void parse(string input, DBEngine &engine)
-{
-	engine.storeCommands(input);
-	vector<string> listOfTokens = tokenize(input);
-	par_line(listOfTokens);
-}
-*/
-
 void parse(string s, DBEngine &e);

Relation.cpp

@@ -92,8 +92,6 @@ void Relation::display(){
 }
 
 void Relation::insertTuple(vector<string> tuple){
-	cout << name << " " << size << endl;
-	cout << tuple.size() << endl;
 	if (tuple.size() != this->size) {
 		cout << "Failure to insert: the sizes do not match.";
 	}