#include "dataclass.h"
DataClass::DataClass()
{
}
// 连接sqliteDB
bool DataClass::open()
{
database=QSqlDatabase::addDatabase("QSQLITE");
database.setDatabaseName("./kzq_ldxDB.DB");
if(!database.open()){
qDebug() <<database.lastError();
return false ;
}
return true;
}
// 主页初期页面值
void DataClass::selcetID1(){
sql_query = QSqlQuery(database);
select_sql = "select a.name, b.remarks from operatorinter a,mstlevel b where a.level=b.level and a.id=1;";
if(!sql_query.exec(select_sql))
{
qDebug()<<sql_query.lastError();
}
else
{
while(sql_query.next())
{
name = sql_query.value(0).toString();
remarks = sql_query.value(1).toString();
}
}
}
// 登陆名称检验
bool DataClass::selcetLogin(QString name,QString password){
sql_query = QSqlQuery(database);
QString select_sql = "select count(*), b.remarks from operatorinter a,mstlevel b where a.level=b.level and name=:name and password=:password;";
sql_query.prepare(select_sql);
sql_query.bindValue(":name",name);
sql_query.bindValue(":password", password);
if(!sql_query.exec())
{
qDebug()<<sql_query.lastError();
}
else
{
while(sql_query.next())
{
if(sql_query.value(0).toInt()){
remarks = sql_query.value(1).toString();
return true;
}
}
}
return false;
}
// 用户界面初期显示数据
int DataClass::onShowUserDb(QTableWidget *tableWidget)
{
int i = 0, j = 0, nColumn, nRow;
sql_query = QSqlQuery(database);
QString select_sql = "select a.id,a.name,b.remarks,a.password,a.respectiveRegion from operatorinter a,mstlevel b where a.level=b.level;";
sql_query.prepare(select_sql);
sql_query.exec();
sql_query.last();
nRow = sql_query.at() + 1;
tableWidget->setRowCount(nRow);
nColumn = tableWidget->columnCount();
sql_query.first();
while(j<nRow)
{
for (i = 0; i<nColumn; i++)
tableWidget->setItem(j, i, new QTableWidgetItem(sql_query.value(i).toString()));
j++;
sql_query.next();
}
return nRow;
}
// 用户界面【搜索】按钮押下显示内容
int DataClass::onShowUserDb_1(QTableWidget *tableWidget,QString name,QString remarks){
int i = 0, j = 0, nColumn, nRow;
sql_query = QSqlQuery(database);
name = "%"+name+"%";
remarks = "%"+remarks+"%";
QString select_sql = "select a.id,a.name,b.remarks,a.password,a.respectiveRegion from operatorinter a,mstlevel b where a.level=b.level and a.name LIKE :name and b.remarks LIKE :remarks;";
sql_query.prepare(select_sql);
sql_query.bindValue(":name",name);
sql_query.bindValue(":remarks", remarks);
sql_query.exec();
sql_query.last();
nRow = sql_query.at() + 1;
tableWidget->setRowCount(nRow);
nColumn = tableWidget->columnCount();
sql_query.first();
while(j<nRow)
{
for (i = 0; i<nColumn; i++)
tableWidget->setItem(j, i, new QTableWidgetItem(sql_query.value(i).toString()));
j++;
sql_query.next();
}
return nRow;
}
// 用户界面【删除】按钮押下显示内容
void DataClass::deleteUser(int id){
sql_query = QSqlQuery(database);
select_sql = QString("delete from operatorinter where id=%1;").arg(id);
sql_query.prepare(select_sql);
if(!sql_query.exec(select_sql))
{
qDebug()<<sql_query.lastError();
}
}
// 关闭sqliteDB
void DataClass::close(){
database.close();
}
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转载自blog.csdn.net/weixin_42123784/article/details/88641094
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