public IActionResult Get(int page = 1, int pageSize = 20)
{
if (!string.IsNullOrEmpty(_httpContextAccessor.HttpContext.Request.Cookies["CookieMonster"]))
{
_logger.LogInformation(_httpContextAccessor.HttpContext.Request.Cookies["CookieMonster"]);
}
var rng = new Random();
var items = Enumerable.Range(0, 5000).Select(index => new WeatherForecast
{
Index = index,
Date = DateTime.Now.AddDays(index),
TemperatureC = rng.Next(-20, 55),
Summary = Summaries[rng.Next(Summaries.Length)]
})
.ToList();
CookieOptions option = new CookieOptions();
option.Expires = DateTime.Now.AddDays(10);
option.HttpOnly = true;
option.Domain = "/";
_httpContextAccessor.HttpContext.Response.Cookies.Append("CoookieMonster", "test_test_test", option);
var pager = new PaginationBuilder(items.Count, page, pageSize);
var results = new { pager, data = items.Skip(pager.StartIndex).Take(pager.PageSize) };
return(Ok(new JsonResult(results).Value));
}
public static IHtmlContent Pager <T>(this IHtmlHelper helper, PaginationBuilder <T> builder) where T : class
{
if (helper is null)
{
throw new ArgumentNullException(nameof(helper));
}
if (builder == null)
{
throw new ArgumentNullException(nameof(builder));
}
if (builder.Collection.TotalRecords < builder.Collection.PageSize &&
builder.Collection.IsNumberPagination && builder.Collection.Page != null && int.Parse(
builder.Collection.Page,
CultureInfo.InvariantCulture) <= 1)
{
return(new HtmlString(string.Empty));
}
var html = new StringBuilder();
html.Append(builder.BuildHeader());
if (builder.Collection.HasPrevious())
{
html.Append(builder.BuildPrevious());
}
if (builder.Collection.PageCount > 1)
{
for (var i = 0; i <= builder.Collection.PageCount - 1; i++)
{
var isCurrent = builder.Collection.Page == i.ToString(CultureInfo.InvariantCulture);
html.Append(builder.BuildItem(i, isCurrent));
}
}
if (builder.Collection.HasNext())
{
html.Append(builder.BuildNext());
}
html.Append(builder.BuildFooter());
html.Append(builder.BuildPagerScript());
return(new HtmlString(html.ToString()));
}
PaginationBuilder <TSource> BuildQueryPaginationField <TSource, TReturn>(
string name,
Func <ResolveEfFieldContext <TDbContext, TSource>, IQueryable <TReturn> >?resolve,
int page,
int row,
Type?itemGraphType,
string?description)
where TReturn : class
{
Guard.AgainstNullWhiteSpace(nameof(name), name);
Guard.AgainstNegative(nameof(page), page);
Guard.AgainstNegative(nameof(row), row);
itemGraphType ??= GraphTypeFinder.FindGraphType <TReturn>();
var fieldType = GetPaginationFieldType <TSource>(name, itemGraphType);
var builder = PaginationBuilder <TSource> .Create <FakeGraph>(name);
if (description != null)
{
builder.Description(description);
}
builder.Page(page).Row(row);
SetField(builder, fieldType);
if (resolve != null)
{
builder.Resolve(
context =>
{
var efFieldContext = BuildContext(context);
var query = resolve(efFieldContext);
query = includeAppender.AddIncludes(query, context);
var names = GetKeyNames <TReturn>();
query = query.ApplyGraphQlArguments(context, names);
return(query
.ApplyPaginationContext(
context.Page,
context.Row,
context,
context.CancellationToken,
efFieldContext.Filters));
});
}
return(builder);
}
