Add date_full_ssim Solr filed

Add at Entry document _date_full_ssim_ field to store full date string.
- it allows to sort Entries in date order including months and days
- it resolves some bug as reported at https://dti-uoy.atlassian.net/browse/TNW-30

app/controllers/new_solr_fields_controller.rb

@@ -113,7 +113,8 @@ def modify_sdoc(sdoc)
       # date_facet = get_date_array(get_id(sdoc[:id]))
       date_facet = Indexer::DateFacetHelper.s_get_date_facets_from_entry(get_id(sdoc[:id]))
 
-      sdoc['date_facet_ssim'] = date_facet
+      sdoc['date_facet_ssim'] = date_facet[0] unless date_facet.blank?
+      sdoc['date_full_ssim'] = date_facet[1] unless date_facet.blank?
 
       # Store SingleDate in single Solr dynamic field e.g. *_ssi (Note *_dttsi requieres dates in ISO format) 
       # Downcase occassional dates with comments 

app/helpers/indexer/date_facet_helper.rb

@@ -14,8 +14,10 @@ def self.s_get_date_facets_from_solr_doc(solr_doc)
         # The prefix 's_' is the convention here, means retrieving data from Solr
         # e.g.
         # pry(main)> Indexer::DateFacetHelper.s_get_date_facets_from_entry('7p88cm19w')
+        # => [["1398", "1398"], ["1398/08/24", "1398/09/05"]] 
         def self.s_get_date_facets_from_entry(entry_id)
             date_facets = []
+            date_full = []
 
             # Find linked EntryDates
             query = 'has_model_ssim:EntryDate AND entryDateFor_ssim:' + entry_id
@@ -30,12 +32,13 @@ def self.s_get_date_facets_from_entry(entry_id)
                     if single_date.include? 'date_tesim'
                         single_date['date_tesim'].each do |dt|
                             date_facets << dt.split('/')[0]
+                            date_full << dt
                         end
                     end
                 end
             end
 
-            date_facets
+            [date_facets, date_full]
         end
 
     end