private void OpenLogPage(object sender, LogPageViewModel viewModel)
{
var page = new LogPage(viewModel);
NavigationPage.SetHasBackButton(page, true);
MainPage.Navigation.PushAsync(page);
}
public LogPage(LogPageViewModel viewModel)
{
InitializeComponent();
BindingContext = viewModel;
}
/// <summary>
/// 获取日志信息
/// </summary>
/// <param name="model">查询条件，日志信息实体，logDate存起始时间</param>
/// <param name="endTime">截止时间</param>
/// <returns></returns>
public LogPageViewModel GetList(LogQueryViewModel model)
{
var pLogList = db.OT_Log.Where(a => true);
//按操作用户查询
if (!string.IsNullOrEmpty(model.UserName))
{
pLogList = pLogList.Where(a => a.UserName.Contains(model.UserName));
}
//按操作类型查询,如果类型为所有则不增加改条件
if (!string.IsNullOrEmpty(model.Type) && model.Type != Common.OperationType.All)
{
pLogList = pLogList.Where(a => a.Type == model.Type);
}
//按报表名称查询
if (!string.IsNullOrEmpty(model.RptName))
{
pLogList = pLogList.Where(a => a.RptName.Contains(model.RptName));
}
//某时间段之间的所有日志
if (model.EndDate != DateTime.Parse("0001/1/1 0:00:00") && model.StartDate != DateTime.Parse("0001/1/1 0:00:00") && model.EndDate != null && model.StartDate != null && model.StartDate <= model.EndDate)
{
DateTime dt = model.EndDate.AddSeconds(1);
pLogList = pLogList.Where(a => a.LogDate >= model.StartDate & a.LogDate <= dt);
}
//大于某时间的所日志
else if (model.StartDate != null && model.StartDate != DateTime.Parse("0001/1/1 0:00:00"))
{
pLogList = pLogList.Where(a => a.LogDate >= model.StartDate);
}
//小于某时间的所日志
else if (model.EndDate != null && model.EndDate != DateTime.Parse("0001/1/1 0:00:00"))
{
DateTime dt = model.EndDate.AddSeconds(1);
pLogList = pLogList.Where(a => a.LogDate <= dt);
}
int pageCount, count;//总页数，总行数
//获取数据总条数
count = pLogList.Count();
//获取总页数
pageCount = count % model.PageSize > 0 ? count / model.PageSize + 1 : count / model.PageSize;
//如果页数大于总页数，或者小于1，则返回第一页
if (model.PageIndex > pageCount || model.PageIndex < 1)
{
model.PageIndex = 1;
}
List <LogManageViewModel> list;
//获取日志信息
if (model.PageIndex == 1)
{
list = pLogList.OrderByDescending(a => a.LogDate).Take(model.PageSize).Select(a => new LogManageViewModel
{
RoleName = a.RoleName,
LogDate = a.LogDate,
Type = a.Type,
Describe = a.Describe,
RptName = a.RptName,
UserName = a.UserName
}).ToList();
}
else
{
int excludedRows = (model.PageIndex - 1) * model.PageSize;//计算起始索引
list = pLogList.OrderByDescending(a => a.LogDate).Skip(excludedRows).Take(model.PageSize).Select(a => new LogManageViewModel
{
RoleName = a.RoleName,
LogDate = a.LogDate,
Type = a.Type,
Describe = a.Describe,
RptName = a.RptName,
UserName = a.UserName
}).ToList();
}
//构建分页日志信息并返回
LogPageViewModel lpModel = new LogPageViewModel();
lpModel.Count = count;
lpModel.PageCount = pageCount;
lpModel.PageIndex = model.PageIndex;
lpModel.LogList = list;
return(lpModel);
}