Fixing commit issues

Attribute.cpp

@@ -21,6 +21,11 @@ void Attribute::addCell(string v){
 	size++;
 }
 
+void Attribute::removeCell(int index){
+	values.erase(values.begin() + index);
+	size--;
+}
+
 string Attribute::operator[](int i){ 
 	return values[i]; 
 }
@@ -60,4 +65,8 @@ void Attribute::display(){
 	}
 	
 	cout << "-------------\n";
+}
+
+void Attribute::clearAllValues(){
+	values.clear();
 }

Attribute.h

@@ -1,3 +1,4 @@
+#pragma once
 #include <iostream>
 #include <vector>
 
@@ -14,6 +15,7 @@ public:
 	Attribute();
 	Attribute(string n, string t, bool k);
 	void addCell(string v);
+	void removeCell(int index);
 	string operator[](int i);
 	vector<string> getValues();
 	string getName();
@@ -22,4 +24,5 @@ public:
 	bool isKey();
 	int getSize();
 	void display();
+	void clearAllValues();
 };

Condition.h

@@ -1,13 +1,7 @@
-#include <iostream>
-#include "Attribute.h"
+#pragma once
+#include "Relation.h"
 
 using namespace std;
 
-class Condition{
-	Attribute att;
-	
-public:
-	//currently only implemented for comparison
-	Condition(Attribute a);
-	Condition(Attribute a);
-};
+//currently only implementing for comparison
+Relation equality(string attName, string s, Relation r);

DBEngine.cpp

@@ -45,6 +45,10 @@ vector<Relation> DBEngine::getRelations(){
 	return tables; 
 }
 
+<<<<<<< HEAD
+=======
+	
+>>>>>>> master
 Relation& DBEngine::getTableFromName(string n){
 	for(int i = 0; i < tables.size(); i++){
 		if (tables[i].getTableName() == n){
@@ -53,6 +57,11 @@ Relation& DBEngine::getTableFromName(string n){
 	}
 }
 
+Relation DBEngine::selection(string attName, string s, Relation r){
+	equality(attName, s, r);
+}
+
+
 Relation DBEngine::selection(string attName, string s, Relation r){
 	equality(attName, s, r);
 }
@@ -73,6 +82,7 @@ Relation DBEngine::projection(vector<string> input, Relation r){
 	
 	Relation temp(new_name, v);
 	return temp;
+<<<<<<< HEAD
 }
 
 Relation DBEngine::product(string new_name, Relation r1, Relation r2){
@@ -95,6 +105,8 @@ Relation DBEngine::product(string new_name, Relation r1, Relation r2){
 	vector<string> result_tuple;
 	
 	return temp;
+=======
+>>>>>>> master
 }
 
 //test error matching
@@ -116,6 +128,7 @@ void DBEngine::rename(Relation& r, vector<string> oldnames, vector<string> newna
 	}
 }
 
+<<<<<<< HEAD
 
 
 /*Relation DBEngine::setUnion(Relation r1, Relation r2){
@@ -126,6 +139,44 @@ void DBEngine::rename(Relation& r, vector<string> oldnames, vector<string> newna
 
 	else {
 		vector<Attribute> r1_atts = r1.getAttributes();
+=======
+Relation DBEngine::setUnion(Relation r1, Relation r2){
+	if (r1.getAttributeNames() != r2.getAttributeNames()){
+		cout << "Failure to union: the relations are not union-compatible.\nreturning the first relation.\n";
+		return r1;
+	}
+
+	else {
+		//currently all returned relations are called TEMP
+		Relation new_r = r1;
+		vector<string> temp;
+		bool duplicate = false;
+
+		for (int i = 0; i < r2.getAttributes()[0].getSize(); ++i) {
+			temp = r2.getTuple(i);
+
+			for (int j = 0; j < new_r.getAttributes()[0].getSize(); ++j){
+				if (temp == new_r.getTuple(j)){
+					duplicate = true;
+					break;
+				}
+			}
+
+			if (!duplicate) {
+				new_r.insertTuple(temp);
+			}
+
+			duplicate = false;
+		}
+
+		return new_r;
+
+
+
+
+
+		/*vector<Attribute> r1_atts = r1.getAttributes();
+>>>>>>> master
 		vector<Attribute> r2_atts = r2.getAttributes();
 		vector<Attribute> new_atts = r1_atts;
 		
@@ -146,6 +197,12 @@ void DBEngine::rename(Relation& r, vector<string> oldnames, vector<string> newna
 
 		//currently all returned relations are called TEMP
 		Relation new_r("TEMP", new_atts);
+<<<<<<< HEAD
 		return new_r;
 	}
 }*/
+=======
+		return new_r;*/
+	}
+}
+>>>>>>> master

DBEngine.h

@@ -23,9 +23,13 @@ public:
 	Relation projection(vector<string> input, Relation r);
 	Relation product(string s1, Relation r1, Relation r2);
 	void rename(Relation& r, vector<string> oldnames, vector<string> newnames);
+<<<<<<< HEAD
 	void save();
 	void storeCommands(string s);
 	//Relation setUnion(Relation r1, Relation r2);
+=======
+	Relation setUnion(Relation r1, Relation r2);
+>>>>>>> master
 	//void setDiff();
 	//void crossProduct();
 };

Parserv3.h

@@ -7,6 +7,10 @@
 
 using namespace std;
 
+<<<<<<< HEAD
+=======
+
+>>>>>>> master
 class PRelation
 {
 	string name;
@@ -262,6 +266,15 @@ class PComparison
 	
 	public:
 		PComparison()
+<<<<<<< HEAD
+		{
+			op.setPOp("~");
+			operand1.setPOperand("~");
+			operand2.setPOperand("~");
+		}
+		
+		PComparison(string str1, string str2, string str3)
+=======
 		{
 			op.setPOp("~");
 			operand1.setPOperand("~");
@@ -276,6 +289,15 @@ class PComparison
 		}
 		
 		void setPComparison(string str1, string str2, string str3)
+>>>>>>> master
+		{
+			operand1.setPOperand(str1);
+			op.setPOp(str2);
+			operand2.setPOperand(str3);
+		}
+		
+<<<<<<< HEAD
+		void setPComparison(string str1, string str2, string str3)
 		{
 			operand1.setPOperand(str1);
 			op.setPOp(str2);
@@ -284,6 +306,10 @@ class PComparison
 		
 		string getPComparison()
 		{
+=======
+		string getPComparison()
+		{
+>>>>>>> master
 			return operand1.getPOperand() + " " + op.getPOp() + " " + operand2.getPOperand();
 		}
 };
@@ -391,6 +417,7 @@ class PExpression
 			return temp;
 		}
 };
+<<<<<<< HEAD
 
 
 vector<string> tokenize(string ss)
@@ -880,3 +907,5 @@ void parse(string input, DBEngine &engine)
 	par_line(listOfTokens);
 }
 
+=======
+>>>>>>> master

README.txt

@@ -1,3 +1,12 @@
+//---IMPORTANT---//
+
+The function stoi() is used in the parser .cpp file to parse integers from the input.
+When compiling things with the parser included, make sure you compile using:
+
+g++ -std=c++11 *.cpp
+
+//---------------//
+
 I changed the name of the repo. To make everything pretty, rename your working folder, and type this line:
 
 	git remote set-url origin https://github.tamu.edu/USERNAME/DMS.git

Relation.cpp

@@ -13,10 +13,30 @@ Relation::Relation(string n, vector<Attribute> a){
 	size = a.size();
 }
 
+void Relation::insertAttributes(vector<Attribute> a){
+	for (int i = 0; i < a.size(); ++i){
+		att.push_back(a[i]);
+	}
+}
+
 string Relation::getTableName(){ 
 	return name; 
 }
 
+Attribute Relation::operator[](int i){ 
+	return att[i]; 
+}
+
+vector<string> Relation::getTuple(int index){
+	vector<string> temp;
+
+	for (int i = 0; i < att.size(); ++i){
+		temp.push_back(att[i][index]);
+	}
+
+	return temp;
+}
+
 vector<Attribute> Relation::getAttributes(){ 
 	return att; 
 }
@@ -90,3 +110,15 @@ void Relation::insertFromRelation(Relation r){
 		}
 	}
 }
+
+void Relation::removeTuple(int index){
+	if (index >= this->size) {
+		cout << "Failure to delete: the requested index is out of bounds.";
+	}
+	
+	else {
+		for (int i = 0; i < att.size(); ++i) {
+			att[i].removeCell(index);
+		}
+	}
+}

Relation.h

@@ -1,3 +1,4 @@
+#pragma once
 #include <iostream>
 #include <vector>
 #include "Attribute.h"
@@ -10,7 +11,10 @@ class Relation{
 public:
 	Relation(string n);
 	Relation(string n, vector<Attribute> a);
+	void insertAttributes(vector<Attribute> a);
 	string getTableName();
+	Attribute operator[](int i);
+	vector<string> getTuple(int index);
 	vector<Attribute> getAttributes();
 	vector<string> getAttributeNames();
 	Attribute& getAttributeByName(string s);
@@ -19,5 +23,5 @@ public:
 	void display();
 	void insertTuple(vector<string> tuple); //assuming they are in order
 	void insertFromRelation(Relation r);
-	//void removeTuple();
+	void removeTuple(int index);
 };

test.cpp

@@ -1,6 +1,10 @@
 #include <iostream>
 #include <vector>
+<<<<<<< HEAD
 #include "Parserv3.h"
+=======
+#include "Condition.h"
+>>>>>>> master
 #include "DBEngine.h"
 
 using namespace std;
@@ -28,6 +32,7 @@ int main() {
 	v.push_back(att2);
 	v.push_back(att3);
 	
+<<<<<<< HEAD
 	Relation r("Food", v);
 	//r.renameAttribute("Breakfast", "BFST");
 	//r.display();
@@ -93,4 +98,30 @@ int main () {
 	engine.save();
 	
 		
+=======
+	engine.createTable("Food", v);
+
+	Attribute att4("Breakfast", "VARCHAR(20)", true);
+	Attribute att5("Lunch", "VARCHAR(20)", false);
+	Attribute att6("Dinner", "VARCHAR(20)", false);
+	
+	att4.addCell("Pancakes");
+	att4.addCell("Bacon");
+	att4.addCell("Eggs");
+	att5.addCell("Turkey Sandwich");
+	att5.addCell("Pasta Salad");
+	att5.addCell("Taco");
+	att6.addCell("Steak");
+	att6.addCell("Fajitas");
+	att6.addCell("Spaghetti");
+	
+	vector<Attribute> v2;
+	v2.push_back(att4);
+	v2.push_back(att5);
+	v2.push_back(att6);
+	
+	engine.createTable("MoarFood", v2);
+
+	engine.setUnion(engine.getTableFromName("Food"), engine.getTableFromName("MoarFood")).display();
+>>>>>>> master
 }