adddb.ui.h~

简单的基于文件的数据库小程序

/****************************************************************************
** ui.h extension file, included from the uic-generated form implementation.
**
** If you want to add, delete, or rename functions or slots, use
** Qt Designer to update this file, preserving your code.
**
** You should not define a constructor or destructor in this file.
** Instead, write your code in functions called init() and destroy().
** These will automatically be called by the form's constructor and
** destructor.
*****************************************************************************/

#ifndef _GLOBALS_H_
extern dbs *database;
extern table* tab ;
#endif

void addForm::init()
{
    comboBox1->clear();
    for(int i=0;i<database->databases.size();i++)
    {
	comboBox1->insertItem(database->databases[i]->dbName);
    }
}
void addForm::adddb()
{
   
    QString n = lineEdit1->text();
    for(int i=0;i<database->databases.size();i++)
    {
	if(database->databases[i]->dbName==n)
	{
	    QMessageBox::information( this, "Warning",
    "The name of the database you input \n"
    "has already contain.\n"
    "Please input again." );
	    lineEdit1->setText("");
	    return;
	}
    }
    QMessageBox::information( this, "Complet",
    "Database added successfully \n"
    "Congratulations!" );
    lineEdit1->setText("");
    database->add(n);
    init();
}


void addForm::addtable()
{
    QString n = comboBox1->currentText();
    QString n2= lineEdit2->text();
    QString n3 = lineEdit4->text();
    QString n4 = lineEdit4_2->text();
    int i;
    for(i=0;i<database->databases.size();i++)
    {
	if(database->databases[i]->dbName==n)
	{
	    break;
	}
    }
    for(int j=0;j<database->databases[i]->tables.size();j++)
    {
	if(database->databases[i]->tables[j]==n2)
	{
	    QMessageBox::information( this, "Warning",
    "The name of the table you input \n"
    "has already contain.\n"
    "Please input again." );
	    lineEdit2->setText("");
	    return;
	}
	    
    }
 
    //std::cout<< n3<<endl;
    
    if(checkKey(n4,n3))
    {
	QMessageBox::information( this, "ERROR",
    " You Must Enter at least one key\n"
     );
	return;
    }
    
    if(n2.isEmpty()||n3.isEmpty()||n4.isEmpty())
	{
	QMessageBox::information( this, "ERROR",
    " You Must fill all the blanks!\n"
     );
	return;
    }
    
    
    QMessageBox::information( this, "Complet",
    "Table added successfully \n"
    "Congratulations!" );
    database->databases[i]->add(n2);
	
    addLineToFile(n2,n4);
    addLineToFile(n2,n3);
}

int addForm::checkKey(QString t1,QString t2)
{
    int same=0;
    
    StringToken token1(t1,',');
    
    while(token1.hasMore()) 
    {
	   QString temp1=token1.next();
	   StringToken token2(n4,',');
	   while(token2.hasMore())
	   {
	       QString temp2 = token2.next();
	       if(temp1==temp2)
		   same++;
	   }
	}
    
   if(same>0)
       return 0;
   else return 1;
}