private IEnumerable <TagStatistic> GetChildTagStatistics()
{
var queryMainTag =
from entry in _entries
from tag in entry.GetTagsAsList()
group tag by tag.Tag
into g
select g;
var queryChildTags =
from parentTagGroup in queryMainTag
from mainTag in parentTagGroup
from childTag in mainTag.ChildTags
group childTag by new { ParentTag = mainTag.Tag, ChildTag = childTag.Tag }
into g
select new { g.Key.ParentTag, g.Key.ChildTag, Count = g.Count() };
var queryTagsOnDifferentDates =
from entry in _entries
from mainTag in entry.GetTagsAsList()
from childTag in mainTag.ChildTags
group mainTag by new { ChildTag = childTag.Tag, ParentTag = mainTag.Tag, entry.Date.Date }
into g
select new { g.Key.ParentTag, g.Key.ChildTag, Count = g.Count() };
var queryTagCount = GetMainTagCount().ToDictionary(key => key.TagName, value => value.Count);
return(queryChildTags.Select(x =>
TagStatistic.ForChildTag(x.ChildTag, x.ParentTag, x.Count,
(decimal)x.Count / queryTagCount[x.ParentTag],
(decimal)queryTagsOnDifferentDates.Count(tagByDate =>
tagByDate.ChildTag == x.ChildTag && tagByDate.ParentTag == x.ParentTag) / TotalDays)));
}
private IEnumerable <TagStatistic> GetMainTagStatistics()
{
var queryTagCount = GetMainTagCount();
var queryTagsOnDifferentDates =
from entry in _entries
from tag in entry.GetTagsAsList()
group tag by new { tag.Tag, entry.Date.Date }
into g
select new { g.Key.Tag, Count = g.Count() };
return(queryTagCount.Select(x => TagStatistic.ForMainTag(x.TagName, x.Count,
(decimal)x.Count / TotalEntries,
(decimal)queryTagsOnDifferentDates.Count(tagByDate => tagByDate.Tag == x.TagName) / TotalDays)));
}
