Separe sqlQA and mySQL lib, add namespace, commnets, license and readme file

.vscode/settings.json

@@ -16,6 +16,8 @@
         "fstream": "cpp",
         "new": "cpp",
         "thread": "cpp",
-        "chrono": "cpp"
+        "chrono": "cpp",
+        "sstream": "cpp",
+        "map": "cpp"
     }
 }

LICENSE

@@ -0,0 +1,73 @@
+Apache License
+Version 2.0, January 2004
+http://www.apache.org/licenses/
+
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+
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+Copyright [2023] [Marcel Bandić - marcelb96@yahoo.com]
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README.md

@@ -1 +1,76 @@
-A library for MySQL that implements a simpler framework for MySQL Connector++
+
+# A library for MySQL that implements a simpler framework for MySQL Connector++
+
+A small framework for basic MySQL database operations via MySQL/Connector++
+
+
+## Features
+
+- Object oriented
+- Active connection pool
+- Retries to connect
+- Native C++ containers: map, vector
+- QA object
+- Thread safe
+- Exceptions
+
+## Installation
+
+First install dependency MySQL/Connector++
+
+```
+sudo apt install libmysqlcppconn-dev
+```
+
+Just download the latest release and unzip it into your project. You can turn it on with:
+
+```
+#include "mysql/lib/mysql.hpp"
+using namespace marcelb;
+```
+
+## Usage
+
+```c++
+/**
+* Init
+*/
+mySQL mydb("tcp://192.168.2.10:3306", "user_nm", "passss", "my_db", 5);
+
+/**
+* Use
+*/
+sqlQA test_qa;
+// build qa
+test_qa.select().from("records").where("enabled = 1");
+try {
+    // execute
+    mydb.exec(test_qa);
+    // check is execute
+    if (test_qa.executed) {
+        // print
+        test_qa.print(true);
+        // access to first result of column id
+        cout << test_qa.result["id"][0] << endl;
+        // num of returned rows and columns
+        cout << test_qa.num_rows << " " << test_qa.num_columns << endl;
+    }
+} catch (const string err) {
+    cout << err << endl;
+}
+```
+## License
+
+[APACHE 2.0](http://www.apache.org/licenses/LICENSE-2.0/)
+
+
+## Support & Feedback
+
+For support and any feedback, contact the address: marcelb96@yahoo.com.
+
+## Contributing
+
+Contributions are always welcome!
+
+Feel free to fork and start working with or without a later pull request. Or contact for suggest and request an option.
+

lib/mysql.hpp

@@ -1,16 +1,13 @@
 #ifndef _MYSQL_
 #define _MYSQL_
 
-#include <string>
-#include <sstream>
-#include <vector>
 #include <deque>
-#include <map>
-#include <iostream>
 #include <mutex>
 #include <thread>
 #include <future>
 
+#include "sqlqa.hpp"
+
 #include <mysql_driver.h>
 #include <mysql_connection.h>
 #include <cppconn/driver.h>
@@ -26,67 +23,78 @@ using namespace std;
 using namespace sql;
 using namespace mysql;
 
-class sqlQA {
+namespace marcelb {
-    public:
-    // query
-    string cmd;
-    string table;
-    vector<string> columns;
-    bool isUpdate = false;
-    bool isSelect = false;
-
-    // answer
-    uint updateCatch = 0;
-    bool executed = false;
-    map<string, vector<string>> result;
-    uint num_rows = 0;
-    uint num_columns = 0;
-
-    // query methods
-    sqlQA& select(const string _select = "*");
-    sqlQA& from(const string _tablename);
-    sqlQA& where(const string _condition);
-    sqlQA& limit(const uint _limit);
-    sqlQA& insertInTo(const string _tablename, const string _columns = "");
-    sqlQA& values(const string _values);
-    sqlQA& update(const string _tablename);
-    sqlQA& set(const string _column_value_pairs);
-    sqlQA& deleteFrom(const string _table);
-
-    void print(bool withDetail = false);
-
-    // answer methods
-
-    private:
-    void parse_columns(const string _cloumns);
-};
 
 class mySQL {
-    private:
     mutex io;
     MySQL_Driver *drv;
     deque<Connection*> con;
     string path, username, password, db;
     uint available;
     uint reconTrys = 3;
-
     bool runBot = true;
     future<void> bot;
     
+    /**
+     * Get column names for a table
+    */
     void getColumns(const string _table, vector<string> &_columns, Connection *ptr_con); // privatno
+    
+    /**
+     * Open one database
+    */
     bool open_one(Connection* con_ptr);
+
+    /**
+     * Open one database server connection
+    */
     Connection* create_con();
+
+    /**
+     * Close one database connection
+    */
     bool disconnect_one(Connection* con_ptr);
+
+    /**
+     * Take an available database connection
+    */
     Connection* shift_con();
 
     public:
+
+    /**
+     * mySQL constructor,
+     * receive the path to the mysql server, 
+     * username, password, database name,
+     * and number of active connections (optional)
+    */
     mySQL(const string _path, const string _username, const string _password, const string _db, const uint _available = 1);
+
+    /**
+     * Disconnect all connections to server
+    */
     bool disconnect();
+
+    /**
+     * Define the maximum number of attempts to
+     * reconnect to the server 
+    */
     void reconnectTrys(const uint _trys);
+
+    /**
+     * Execute SQLQA
+    */
     void exec(sqlQA &sql_qa);
+
+    /**
+     * Destruktor
+     * close all connections
+    */
     ~mySQL();
 
 };
 
 
+}
+
 #endif

lib/sqlqa.hpp

@@ -0,0 +1,119 @@
+#ifndef _SQLQA_
+#define _SQLQA_
+
+#include <iostream>
+#include <sstream>
+#include <string>
+#include <vector>
+#include <map>
+
+using namespace std;
+
+namespace marcelb {
+
+/**
+ * A class for creating sql queries and responses
+*/
+class sqlQA {
+    public:
+    // query variable list
+
+    // SQL Command
+    string cmd;
+    // Table name
+    string table;
+    // Columns name list
+    vector<string> columns;
+    // Query is update type
+    bool isUpdate = false;
+    // Query is select type
+    bool isSelect = false;
+
+    // answer
+
+    // Number of updates caught
+    uint updateCatch = 0;
+    // Executing status
+    bool executed = false;
+    // Answer
+    map<string, vector<string>> result;
+    // Number of returned rows
+    uint num_rows = 0;
+    // Number of returned columns
+    uint num_columns = 0;
+
+    // query methods
+
+    /**
+     * SELECT
+     * accept columns names, comma separated  
+     * defualt *
+    */
+    sqlQA& select(const string _select = "*");
+
+    /**
+     * FROM
+     * accept table name
+    */
+    sqlQA& from(const string _tablename);
+
+    /**
+     * WHERE
+     * accept string sql condition
+    */
+    sqlQA& where(const string _condition);
+
+    /**
+     * LIMIT
+     * set limit result
+    */
+    sqlQA& limit(const uint _limit);
+
+    /**
+     * INSERT IN TO
+     * accept table name, and columns
+    */
+    sqlQA& insertInTo(const string _tablename, const string _columns = "");
+
+    /**
+     * VALUES
+     * accept values
+    */
+    sqlQA& values(const string _values);
+
+    /**
+     * UPDATE
+     * accept tablename for update query
+    */
+    sqlQA& update(const string _tablename);
+
+    /**
+     * SET
+     * accept column and value pairs
+    */
+    sqlQA& set(const string _column_value_pairs);
+
+    /**
+     * DELETE FROM
+     * accept table name
+    */
+    sqlQA& deleteFrom(const string _table);
+
+    /**
+     * Print SQLQA
+    */
+    void print(bool withDetail = false);
+
+    // intern methods
+    private:
+
+    /**
+     * Parse column names
+    */
+    void parse_columns(const string _cloumns);
+};
+
+
+}
+
+#endif

src/mysql.cpp

@@ -1,100 +1,7 @@
 #include "../lib/mysql.hpp"
 
-sqlQA& sqlQA::select(const string _columns) {
-   if (_columns != "*") {
-      parse_columns(_columns);
-   }
-   isSelect = true;
-   cmd += "SELECT " + _columns + " ";
-   return *this;
-}
-
-sqlQA& sqlQA::from(const string _table) {
-   table = _table;
-   cmd += "FROM " + _table + " ";
-   return *this;
-}
-
-sqlQA& sqlQA::where(const string _condition) {
-   cmd += "WHERE " + _condition + " ";
-   return *this;
-}
-
-sqlQA& sqlQA::limit(const uint _limit) {
-   cmd += "LIMIT " + to_string(_limit) + " ";
-   return *this;
-}
-
-sqlQA& sqlQA::insertInTo(const string _tablename, const string _columns) {
-   isUpdate = true;
-   cmd += "INSERT INTO " + _tablename;
-   if (_columns.empty()) {
-      cmd += " ";
-   }
-   else {
-      cmd += " (" + _columns + ") ";
-   }
-   return *this;
-}
-
-sqlQA& sqlQA::values(const string _values) {
-   cmd += "VALUES (" + _values + ") ";
-   return *this;
-}
-
-sqlQA& sqlQA::update(const string _table) {
-   isUpdate = true;
-   cmd += "UPDATE " + _table + " ";
-   return *this;
-}
-
-sqlQA& sqlQA::set(const string _column_value_pairs) {
-   cmd += "SET " + _column_value_pairs + " ";
-   return *this;
-}
-
-sqlQA& sqlQA::deleteFrom(const string _table) {
-   isUpdate = true;
-   cmd += "DELETE FROM " + _table + " ";
-   return *this;
-}
-
-void sqlQA::print(bool withDetail) {
-   cout << "============================================" << endl;
-
-   for (auto i : result) {
-      for (auto j: i.second) {
-         cout << i.first << " : " << j << endl;
-      }
-      cout << "--------------------------------------------" << endl;
-   }
-
-   if (withDetail) {
-      cout << "-----------------DETAILS--------------------" << endl;
-      cout << "Is executed: " << (executed ? "true" : "false") << endl;
-      cout << "Update catch: " << updateCatch << endl;
-      cout << "Num of rows: " << num_rows << endl;
-      cout << "Num of columns: " << num_columns << endl;
-   }
-   cout << "============================================" << endl;
-
-}
-
-void sqlQA::parse_columns(const string _columns) {
-   istringstream iss(_columns);
-   string columnName;
-
-   while (getline(iss, columnName, ',')) {
-      size_t startPos = columnName.find_first_not_of(" ");
-      size_t endPos = columnName.find_last_not_of(" ");
-      
-      if (startPos != string::npos && endPos != string::npos) {
-         columns.push_back(columnName.substr(startPos, endPos - startPos + 1));
-      }
-   }
-}
 
-mySQL::mySQL(const string _path, const string _username, const string _password, const string _db, const uint _available) {
+marcelb::mySQL::mySQL(const string _path, const string _username, const string _password, const string _db, const uint _available) {
    path = _path;
    username = _username;
    password = _password;
@@ -139,7 +46,7 @@ mySQL::mySQL(const string _path, const string _username, const string _password,
 }
 
 
-Connection* mySQL::create_con() {
+Connection* marcelb::mySQL::create_con() {
    uint trys = 0;
    bool status = true;
    Connection* new_con = NULL;
@@ -165,7 +72,7 @@ Connection* mySQL::create_con() {
    return new_con;
 }
 
-bool mySQL::disconnect() {
+bool marcelb::mySQL::disconnect() {
    io.lock();
    bool status = true;
 
@@ -177,7 +84,7 @@ bool mySQL::disconnect() {
    return status;
 }
 
-bool mySQL::disconnect_one(Connection* con_ptr) {
+bool marcelb::mySQL::disconnect_one(Connection* con_ptr) {
    bool status = !con_ptr->isClosed();
 
    if (status) {
@@ -199,7 +106,7 @@ bool mySQL::disconnect_one(Connection* con_ptr) {
    return status;
 }
 
-bool mySQL::open_one(Connection* con_ptr) {
+bool marcelb::mySQL::open_one(Connection* con_ptr) {
    bool status = true; // ako true greška je
    uint trys = 0;
 
@@ -227,14 +134,14 @@ bool mySQL::open_one(Connection* con_ptr) {
  * Broj pokušaja usljed povezivanja s bazom od 1 do unlimited;
 */
 
-void mySQL::reconnectTrys(const uint _trys) {
+void marcelb::mySQL::reconnectTrys(const uint _trys) {
    io.lock();
    reconTrys = _trys;
    io.unlock();
 }
 
 
-void mySQL::exec(sqlQA &sql_qa) {
+void marcelb::mySQL::exec(sqlQA &sql_qa) {
    Connection* con_ptr = shift_con(); 
 
    try {
@@ -287,7 +194,7 @@ void mySQL::exec(sqlQA &sql_qa) {
 
 }
 
-void mySQL::getColumns(const string _table, vector<string> &_columns, Connection *ptr_con) {
+void marcelb::mySQL::getColumns(const string _table, vector<string> &_columns, Connection *ptr_con) {
    Statement *stmt;
    stmt = ptr_con->createStatement();
    
@@ -303,7 +210,7 @@ void mySQL::getColumns(const string _table, vector<string> &_columns, Connection
    delete stmt;
 }
 
-Connection* mySQL::shift_con() {
+Connection* marcelb::mySQL::shift_con() {
    while (true) {
       while(con.size()) {
          io.lock();
@@ -319,7 +226,7 @@ Connection* mySQL::shift_con() {
    }
 }
 
-mySQL::~mySQL() {
+marcelb::mySQL::~mySQL() {
    runBot = false;
    bot.get();
    disconnect();

src/sqlqa.cpp

@@ -0,0 +1,97 @@
+#include "../lib/sqlqa.hpp"
+
+using namespace marcelb;
+
+sqlQA& marcelb::sqlQA::select(const string _columns) {
+   if (_columns != "*") {
+      parse_columns(_columns);
+   }
+   isSelect = true;
+   cmd += "SELECT " + _columns + " ";
+   return *this;
+}
+
+sqlQA& marcelb::sqlQA::from(const string _table) {
+   table = _table;
+   cmd += "FROM " + _table + " ";
+   return *this;
+}
+
+sqlQA& marcelb::sqlQA::where(const string _condition) {
+   cmd += "WHERE " + _condition + " ";
+   return *this;
+}
+
+sqlQA& marcelb::sqlQA::limit(const uint _limit) {
+   cmd += "LIMIT " + to_string(_limit) + " ";
+   return *this;
+}
+
+sqlQA& marcelb::sqlQA::insertInTo(const string _tablename, const string _columns) {
+   isUpdate = true;
+   cmd += "INSERT INTO " + _tablename;
+   if (_columns.empty()) {
+      cmd += " ";
+   }
+   else {
+      cmd += " (" + _columns + ") ";
+   }
+   return *this;
+}
+
+sqlQA& marcelb::sqlQA::values(const string _values) {
+   cmd += "VALUES (" + _values + ") ";
+   return *this;
+}
+
+sqlQA& marcelb::sqlQA::update(const string _table) {
+   isUpdate = true;
+   cmd += "UPDATE " + _table + " ";
+   return *this;
+}
+
+sqlQA& marcelb::sqlQA::set(const string _column_value_pairs) {
+   cmd += "SET " + _column_value_pairs + " ";
+   return *this;
+}
+
+sqlQA& marcelb::sqlQA::deleteFrom(const string _table) {
+   isUpdate = true;
+   cmd += "DELETE FROM " + _table + " ";
+   return *this;
+}
+
+void marcelb::sqlQA::print(bool withDetail) {
+   cout << "============================================" << endl;
+
+   for (auto i : result) {
+      for (auto j: i.second) {
+         cout << i.first << " : " << j << endl;
+      }
+      cout << "--------------------------------------------" << endl;
+   }
+
+   if (withDetail) {
+      cout << "-----------------DETAILS--------------------" << endl;
+      cout << "Is executed: " << (executed ? "true" : "false") << endl;
+      cout << "Update catch: " << updateCatch << endl;
+      cout << "Num of rows: " << num_rows << endl;
+      cout << "Num of columns: " << num_columns << endl;
+   }
+   cout << "============================================" << endl;
+
+}
+
+void marcelb::sqlQA::parse_columns(const string _columns) {
+   istringstream iss(_columns);
+   string columnName;
+
+   while (getline(iss, columnName, ',')) {
+      size_t startPos = columnName.find_first_not_of(" ");
+      size_t endPos = columnName.find_last_not_of(" ");
+      
+      if (startPos != string::npos && endPos != string::npos) {
+         columns.push_back(columnName.substr(startPos, endPos - startPos + 1));
+      }
+   }
+}

test/test.cpp

@@ -6,6 +6,7 @@
 
 using namespace std;
 using namespace chrono;
+using namespace marcelb;
 
 int main() {
     try {
@@ -13,7 +14,6 @@ int main() {
         mySQL mydb("tcp://192.168.2.10:3306", "dinio", "H€r5elfInd1aH@nds", "dinio", 5);
 
         // sleep(3600*10);
-        sleep(20);
 
 
         auto start = high_resolution_clock::now();