School Commit Init

Anul 1/Semestrul 2/OOP/Labs/MockTest1/QuestionRepo.cpp

@@ -0,0 +1,56 @@
+#include "QuestionRepo.h"
+#include <stdexcept>
+
+QuestionRepo::QuestionRepo(std::string file_name)
+{
+    this->_file_name = file_name;
+    this->read_from_file();
+}
+
+QuestionRepo::~QuestionRepo()
+{
+    this->write_to_file();
+}
+
+void QuestionRepo::add(Question q)
+{
+    for(auto& question : this->_questions)
+        if(question.id() == q.id())
+            throw std::runtime_error("Question already exists!");
+    this->_questions.push_back(q);
+}
+
+std::vector<Question> QuestionRepo::get_all()
+{
+    return this->_questions;
+}
+
+int QuestionRepo::size()
+{
+    return this->_questions.size();
+}
+
+void QuestionRepo::read_from_file()
+{
+    std::ifstream file(this->_file_name);
+    if(!file.is_open())
+        throw std::runtime_error("File could not be opened!");
+    std::string line;
+    while(std::getline(file, line) && !line.empty())
+    {
+        Question q;
+        line >> q;
+        this->_questions.push_back(q);
+    }
+    file.close();
+}
+
+void QuestionRepo::write_to_file()
+{
+    std::ofstream file(this->_file_name);
+    if(!file.is_open())
+        throw std::runtime_error("File could not be opened!");
+    for(auto& question : this->_questions)
+        file << question;
+    file.close();
+}