API tools faq
paste
Advertisement
pbwauyo

Untitled

pbwauyo
Aug 9th, 2023
1,029
0
Never
Add comment
Not a member of Pastebin yet? Sign Up, it unlocks many cool features!
C++ 3.11 KB | None | 0 0
raw download clone embed print report
  1. #include <sstream>
  2. #include <vector>
  3. #include <string.h>
  4. #include <fstream>
  5. #include <stdio.h>
  6.  
  7. //Importing Product class
  8. #include "Product.cpp"
  9.  
  10. using namespace std;
  11.  
  12. class FileHandler{
  13.     public:
  14.     string filename;
  15.  
  16.     vector<Product> readJsonFile(){
  17.  
  18.         // Add code here
  19.         vector<Product> prodList;
  20.         vector<string> prodLines;
  21.         string prodLine;
  22.         Product manProd;
  23.        
  24.  
  25.         if (filename.empty()){
  26.             filename = "data/products.json";
  27.         }
  28.  
  29.         cout<<"Reading "<<filename<< " File........."<<endl;
  30.  
  31.         ifstream prodsFile(filename);
  32.  
  33.         while (getline(prodsFile, prodLine)){
  34.              
  35.                 prodLines.push_back(prodLine);
  36.  
  37.                 if(prodLine.substr(0,1) == "{"){
  38.                     if (prodLine.back() == ',')
  39.                     {
  40.                         prodLine.pop_back();
  41.                     }
  42.                    
  43.                     manProd.productFromJson(prodLine);
  44.                     prodList.push_back(manProd);
  45.                 }
  46.         }          
  47.        
  48.         cout<<"Finished Reading "<<filename<< " File........."<<endl;
  49.  
  50.         return prodList;
  51.     };
  52.  
  53.     void saveToJsonFile(Product p){
  54.  
  55.         vector<Product> pList;
  56.        
  57.         pList = readJsonFile();
  58.  
  59.         pList.push_back(p);
  60.  
  61.          // Check if the file exists.
  62.         ifstream input_file(filename);
  63.  
  64.         if (!input_file.good()) {
  65.             // The file does not exist.
  66.             cout << "First Record ........." << endl;
  67.  
  68.             ofstream jsonFile(filename);
  69.  
  70.             jsonFile<<"["<<endl;
  71.             jsonFile<< p.toJson()<<endl;
  72.             jsonFile<<"]"<<endl;
  73.  
  74.             return;
  75.  
  76.         }
  77.  
  78.         // Delete the file.
  79.         int ret = remove(filename.c_str());
  80.         if (ret != 0) {
  81.             std::cout << "Error deleting file: " << strerror(errno) << "\n";
  82.             return ;
  83.         }
  84.  
  85.         ofstream jsonFile(filename);
  86.         jsonFile<<"["<<endl;
  87.         for(int i=0; i<pList.size(); i++){
  88.  
  89.             if(i< pList.size() -1){
  90.                 jsonFile<< pList.at(i).toJson()<<","<<endl;
  91.             }
  92.             else{
  93.                 jsonFile<< pList.at(i).toJson()<<endl;
  94.             }
  95.         }
  96.         jsonFile<<"]"<<endl;      
  97.     }
  98.  
  99.     void saveToJsonFile(vector<Product> productList){
  100.          // Check if the file exists.
  101.         ifstream input_file(filename);
  102.  
  103.         if (input_file.good())
  104.         {
  105.             // Delete the file.
  106.             int ret = remove(filename.c_str());
  107.             if (ret != 0) {
  108.                 std::cout << "Error deleting file: " << strerror(errno) << "\n";
  109.                 return ;
  110.             }
  111.         }
  112.  
  113.         ofstream jsonFile(filename);
  114.         jsonFile<<"["<<endl;
  115.         for(int i=0; i<productList.size(); i++){
  116.             if(i< productList.size() -1){
  117.                 jsonFile<< productList.at(i).toJson()<<","<<endl;
  118.             }
  119.             else{
  120.                 jsonFile<< productList.at(i).toJson()<<endl;
  121.             }
  122.         }
  123.         jsonFile<<"]"<<endl;      
  124.     }
  125. };
Advertisement
Add Comment
Please, Sign In to add comment
Advertisement
Public Pastes
Advertisement
We use cookies for various purposes including analytics. By continuing to use Pastebin, you agree to our use of cookies as described in the Cookies Policy.  OK, I Understand
Not a member of Pastebin yet?
Sign Up, it unlocks many cool features!