public static int Insert(List <Areas> areas)
{
using (MeiTuanEntities db = new MeiTuanEntities())
{
var query = from a in db.T_Areas
where a.State == true
select a;
List <Areas> list = new List <Areas>();
//默认值
for (int i = 0; i < areas.Count; i++)
{
areas[i].State = true;
areas[i].P_ID = 0;
areas[i].AddTime = DateTime.Now;
var subAreas = areas[i].subAreas;
for (int j = 0; j < subAreas.Count; j++)
{
subAreas[j].State = true;
subAreas[j].P_ID = areas[i].ID;
subAreas[j].AddTime = DateTime.Now;
}
subAreas.Remove(subAreas.Find(m => m.Name.Equals("全部")));
list.AddRange(subAreas);
//db.T_Areas.AddRange(subAreas);
}
list.AddRange(areas);
//var temp_areas = db.T_Areas.AddRange(areas);
List <int> list_id_source = query.Select(m => m.ID).ToList();
List <int> list_id_target = list.Select(m => m.ID).ToList();
//找出需要插入的值
List <int> list_id_insert = list_id_target.Except(list_id_source).Distinct().OrderBy(m => m).ToList();
var list_inserted = list.FindAll(m => list_id_insert.Contains(m.ID)).Select(i => {
return(new T_Areas
{
ID = i.ID,
Name = i.Name,
URL = i.URL,
P_ID = i.P_ID,
State = i.State,
AddTime = i.AddTime,
});
});
foreach (var item in list_inserted)
{
db.Database.ExecuteSqlCommand("INSERT INTO T_Areas(ID,Name,URL,P_ID,State,AddTime) VALUES(@ID,@Name,@URL,@P_ID,@State,@AddTime)",
new SqlParameter("@ID", item.ID),
new SqlParameter("@Name", item.Name),
new SqlParameter("@URL", item.URL),
new SqlParameter("@P_ID", item.P_ID),
new SqlParameter("@State", item.State),
new SqlParameter("@AddTime", item.AddTime));
}
db.SaveChanges();
return(list_inserted.Count());
}
}
public int Delete()
{
using (MeiTuanEntities db = new MeiTuanEntities())
{
return(db.Database.ExecuteSqlCommand(@" TRUNCATE TABLE T_Areas
TRUNCATE TABLE T_Cate
TRUNCATE TABLE T_DinnerCountsAttr
TRUNCATE TABLE T_SortTypesAttr"));
}
}
public void MyTestMethod2()
{
using (MeiTuanEntities db = new MeiTuanEntities())
{
var query = from a in db.T_City
where a.State == true
select a;
var list = query.ToList();
}
}
private void 更新美食模块ToolStripMenuItem_Click(object sender, EventArgs e)
{
//从数据中取出URL，然后访问网页，解析网页获取到美食菜单的URL，访问并记录该URL，
//进入美食列表页后，依次访问不同的分类，将美食的名称，评分，地址，人均消费记录到数据库中
numberOfMeishi = 0;
listBox1.Items.Add($"{DateTime.Now.ToShortTimeString()} 开始抓取数据...");
HtmlWeb webClient = new HtmlWeb();
try
{
_cancel_token = new CancellationTokenSource();
using (MeiTuanEntities db = new MeiTuanEntities())
{
var query = from a in db.T_City
where a.State == true
select new CityViewModel
{
ID = a.ID,
Name = a.Name,
URL = a.URL,
MeiShiURL = a.MeiShiURL
};
var list = query.ToList();
int offset = list.Count / 4;
Task task = new Task(() => {
var list_offset = list.Take(offset).ToList();
InsertMeiShi(list_offset);
});
task.Start();
Task task2 = new Task(() => {
var list_offset = list.Skip(offset).Take(offset).ToList();
InsertMeiShi(list_offset);
});
task2.Start();
Task task3 = new Task(() => {
var list_offset = list.Skip(offset * 2).Take(offset).ToList();
InsertMeiShi(list_offset);
});
task3.Start();
Task task4 = new Task(() => {
var list_offset = list.Skip(offset * 3).ToList();
InsertMeiShi(list_offset);
});
task4.Start();
}
}
catch (Exception ex)
{
MyLog.logger.Debug(ex.Message);
}
}
/// <summary>
/// 导入数据
/// </summary>
public static int Insert(List <SortTypesAttr> cate)
{
using (MeiTuanEntities db = new MeiTuanEntities())
{
var query = from a in db.T_SortTypesAttr
where a.State == true
select a;
List <SortTypesAttr> list = new List <SortTypesAttr>();
list.AddRange(cate);
List <int> list_id_source = query.Select(m => m.ID).ToList();
List <int> list_id_target = list.Select(m => m.id).ToList();
//找出需要插入的值
List <int> list_id_insert = list_id_target.Except(list_id_source).Distinct().OrderBy(m => m).ToList();
var list_inserted = list.FindAll(m => list_id_insert.Contains(m.id)).Select(i => {
return(new SortTypesAttr
{
id = i.id,
name = i.name,
url = string.Empty,
State = true,
AddTime = DateTime.Now
});
});
foreach (var item in list_inserted)
{
db.Database.ExecuteSqlCommand("INSERT INTO T_SortTypesAttr(ID,Name,URL,State,AddTime) VALUES(@ID,@Name,@URL,@State,@AddTime)",
new SqlParameter("@ID", item.id),
new SqlParameter("@Name", item.name),
new SqlParameter("@URL", item.url),
new SqlParameter("@State", item.State),
new SqlParameter("@AddTime", item.AddTime));
}
db.SaveChanges();
return(list_inserted.Count());
}
}