private void ShowView()
{
var rockContext = new RockContext();
var missingConfiguration = new List <string>();
var contentChannelGuid = GetAttributeValue("ContentChannel").AsGuidOrNull();
if (!contentChannelGuid.HasValue)
{
missingConfiguration.Add("The content channel has not yet been configured.");
}
var blockTitleTemplate = GetAttributeValue("BlockTitleTemplate");
if (blockTitleTemplate.IsNullOrWhiteSpace())
{
missingConfiguration.Add("The block title template appears to be blank.");
}
var bodyTemplate = GetAttributeValue("BodyTemplate");
if (bodyTemplate.IsNullOrWhiteSpace())
{
missingConfiguration.Add("The body template appears to be blank.");
}
if (missingConfiguration.Count > 0)
{
StringBuilder message = new StringBuilder();
message.Append("Currently, there are some missing configuration items. These items are summarized below: <ul>");
foreach (var configurationItem in missingConfiguration)
{
message.Append(string.Format("<li>{0}</li>", configurationItem));
}
message.Append("</ul>");
nbMessages.Text = message.ToString();
nbMessages.NotificationBoxType = NotificationBoxType.Validation;
return;
}
var enabledLavaCommands = GetAttributeValue("EnabledLavaCommands");
var blockTitleIconCssClass = GetAttributeValue("BlockTitleIconCssClass");
var metricValueCount = GetAttributeValue("MetricValueCount").AsInteger();
var cacheDuration = GetAttributeValue("CacheDuration").AsInteger();
string cacheTags = GetAttributeValue("CacheTags") ?? string.Empty;
var mergeFields = Rock.Lava.LavaHelper.GetCommonMergeFields(RockPage, CurrentPerson);
var cacheKey = "internal-commmunication-view-" + this.BlockId.ToString();
ContentChannelItem contentChannelItem = null;
List <MetricResult> metrics = null;
var showPrev = false;
CachedBlockData cachedItem = null;
if (cacheDuration > 0 && _currentPage == 0)
{
cachedItem = RockCache.Get(cacheKey) as CachedBlockData;
}
if (cachedItem != null)
{
contentChannelItem = cachedItem.ContentChannelItem;
metrics = cachedItem.Metrics;
showPrev = cachedItem.ShowPrev;
}
else
{
// Get latest content channel items, get two so we know if a previous one exists for paging
var contentChannelItems = new ContentChannelItemService(rockContext).Queryable().AsNoTracking()
.Where(i => i.ContentChannel.Guid == contentChannelGuid &&
i.Status == ContentChannelItemStatus.Approved)
.OrderByDescending(i => i.StartDateTime)
.Take(2)
.Skip(_currentPage)
.ToList();
if (contentChannelItems.IsNull() || contentChannelItems.Count == 0)
{
nbMessages.Text = "It appears that there are no active communications to display for this content channel.";
nbMessages.NotificationBoxType = NotificationBoxType.Info;
return;
}
contentChannelItem = contentChannelItems.First();
showPrev = (contentChannelItems.Count > 1);
// Get metrics
var metricCategories = Rock.Attribute.MetricCategoriesFieldAttribute.GetValueAsGuidPairs(GetAttributeValue("Metrics"));
var metricGuids = metricCategories.Select(a => a.MetricGuid).ToList();
metrics = new MetricService(rockContext).GetByGuids(metricGuids)
.Select(m => new MetricResult
{
Id = m.Id,
Title = m.Title,
Description = m.Description,
IconCssClass = m.IconCssClass,
UnitsLabel = m.YAxisLabel,
LastRunDateTime = m.MetricValues.OrderByDescending(v => v.MetricValueDateTime).Select(v => v.MetricValueDateTime).FirstOrDefault(),
LastValue = m.MetricValues.OrderByDescending(v => v.MetricValueDateTime).Select(v => v.YValue).FirstOrDefault()
}).ToList();
// Get metric values for each metric if requested
if (metricValueCount > 0)
{
foreach (var metric in metrics)
{
metric.MetricValues = new MetricValueService(rockContext).Queryable()
.Where(v => v.MetricId == metric.Id)
.OrderByDescending(v => v.MetricValueDateTime)
.Select(v => new MetricValue
{
DateTime = v.MetricValueDateTime,
Value = v.YValue,
Note = v.Note
})
.Take(metricValueCount)
.ToList();
}
}
// Set Cache
if (cacheDuration > 0 && _currentPage == 0)
{
var cachedData = new CachedBlockData();
cachedData.ContentChannelItem = contentChannelItem.Clone(false);
cachedData.ShowPrev = showPrev;
cachedData.Metrics = metrics;
var expiration = RockDateTime.Now.AddSeconds(cacheDuration);
RockCache.AddOrUpdate(cacheKey, string.Empty, cachedData, expiration, cacheTags);
}
}
mergeFields.Add("Item", contentChannelItem);
mergeFields.Add("Metrics", metrics);
lBlockTitleIcon.Text = string.Format("<i class='{0}'></i>", blockTitleIconCssClass);
lBlockTitle.Text = blockTitleTemplate.ResolveMergeFields(mergeFields, enabledLavaCommands);
lBlockBody.Text = bodyTemplate.ResolveMergeFields(mergeFields, enabledLavaCommands);
// Determine if we can page backwards
btnPrevious.Visible = showPrev;
// Determine if we can page forwards
btnNext.Visible = (_currentPage > 0);
// Set the current page hidden field
hfCurrentPage.Value = _currentPage.ToString();
}
