Orchard/src/Orchard.Web/Modules/Orchard.PublishLater/Drivers/PublishLaterPartDriver.cs

using System;
using System.Xml;
using Orchard.ContentManagement;
using Orchard.ContentManagement.Drivers;
using Orchard.ContentManagement.Handlers;
using Orchard.Mvc;
using Orchard.PublishLater.Models;
using Orchard.PublishLater.Services;
using Orchard.PublishLater.ViewModels;
using Orchard.Localization;
using System.Globalization;
using Orchard.Services;
using Orchard.Localization.Services;

namespace Orchard.PublishLater.Drivers {
    public class PublishLaterPartDriver : ContentPartDriver<PublishLaterPart> {
        private const string TemplateName = "Parts/PublishLater";
        private readonly IHttpContextAccessor _httpContextAccessor;
        private readonly IPublishLaterService _publishLaterService;
        private readonly IClock _clock;
        private readonly IDateServices _dateServices;

        public PublishLaterPartDriver(
            IOrchardServices services,
            IHttpContextAccessor httpContextAccessor,
            IPublishLaterService publishLaterService,
            IClock clock,
            IDateServices dateServices) {
            _httpContextAccessor = httpContextAccessor;
            _publishLaterService = publishLaterService;
            _clock = clock;
            _dateServices = dateServices;
            T = NullLocalizer.Instance;
            Services = services;
        }

        public Localizer T {
            get;
            set;
        }
        public IOrchardServices Services {
            get;
            set;
        }

        protected override string Prefix {
            get {
                return "PublishLater";
            }
        }

        protected override DriverResult Display(PublishLaterPart part, string displayType, dynamic shapeHelper) {
            return Combined(
                ContentShape("Parts_PublishLater_Metadata",
                             () => shapeHelper.Parts_PublishLater_Metadata(ScheduledPublishUtc: part.ScheduledPublishUtc.Value)),
                ContentShape("Parts_PublishLater_Metadata_Summary",
                             () => shapeHelper.Parts_PublishLater_Metadata_Summary(ScheduledPublishUtc: part.ScheduledPublishUtc.Value)),
                ContentShape("Parts_PublishLater_Metadata_SummaryAdmin",
                             () => shapeHelper.Parts_PublishLater_Metadata_SummaryAdmin(ScheduledPublishUtc: part.ScheduledPublishUtc.Value))
                );
        }

        protected override DriverResult Editor(PublishLaterPart part, dynamic shapeHelper) {
            var model = new PublishLaterViewModel(part) {
                ScheduledPublishUtc = part.ScheduledPublishUtc.Value,
                ScheduledPublishDate = !part.IsPublished() ? _dateServices.ConvertToLocalDateString(part.ScheduledPublishUtc.Value, "") : "",
                ScheduledPublishTime = !part.IsPublished() ? _dateServices.ConvertToLocalTimeString(part.ScheduledPublishUtc.Value, "") : ""
            };

            return ContentShape("Parts_PublishLater_Edit",
                                () => shapeHelper.EditorTemplate(TemplateName: TemplateName, Model: model, Prefix: Prefix));
        }

        protected override DriverResult Editor(PublishLaterPart part, IUpdateModel updater, dynamic shapeHelper) {
            var model = new PublishLaterViewModel(part);

            updater.TryUpdateModel(model, Prefix, null, null);
            var httpContext = _httpContextAccessor.Current();
            if (httpContext.Request.Form["submit.Save"] == "submit.PublishLater") {
                if (!String.IsNullOrWhiteSpace(model.ScheduledPublishDate) && !String.IsNullOrWhiteSpace(model.ScheduledPublishTime)) {
                    try {
                        var utcDateTime = _dateServices.ConvertFromLocalString(model.ScheduledPublishDate, model.ScheduledPublishTime);
                        model.ScheduledPublishUtc = part.ScheduledPublishUtc.Value = utcDateTime;

                        if (model.ScheduledPublishUtc < _clock.UtcNow) {
                            updater.AddModelError("ScheduledPublishUtcDate", T("You cannot schedule a publishing date in the past."));
                        }
                        else {
                            _publishLaterService.Publish(model.ContentItem, model.ScheduledPublishUtc.Value);
                        }
                    }
                    catch (FormatException) {
                        updater.AddModelError(Prefix, T("'{0} {1}' could not be parsed as a valid date and time.", model.ScheduledPublishDate, model.ScheduledPublishTime));                                             
                    }
                }
                else if (!String.IsNullOrWhiteSpace(model.ScheduledPublishDate) || !String.IsNullOrWhiteSpace(model.ScheduledPublishTime)) {
                    updater.AddModelError(Prefix, T("Both the date and time need to be specified for when this is to be published. If you don't want to schedule publishing then click Save or Publish Now."));
                }
            }

            return ContentShape("Parts_PublishLater_Edit",
                                () => shapeHelper.EditorTemplate(TemplateName: TemplateName, Model: model, Prefix: Prefix));
        }

        protected override void Importing(PublishLaterPart part, ImportContentContext context) {
            var scheduledUtc = context.Attribute(part.PartDefinition.Name, "ScheduledPublishUtc");
            if (scheduledUtc != null) {
                part.ScheduledPublishUtc.Value = XmlConvert.ToDateTime(scheduledUtc, XmlDateTimeSerializationMode.Utc);
            }
        }

        protected override void Exporting(PublishLaterPart part, ExportContentContext context) {
            var scheduled = part.ScheduledPublishUtc.Value;
            if (scheduled != null) {
                context.Element(part.PartDefinition.Name)
                    .SetAttributeValue("ScheduledPublishUtc", XmlConvert.ToString(scheduled.Value, XmlDateTimeSerializationMode.Utc));
            }
        }
    }
}