Add time sensitive period splitting

README.md

@@ -151,6 +151,12 @@ class AddEmployeeAssignmentsOverlappingDatesConstraint < ActiveRecord::Migration
 end
 ```
 
+## Time sensitive records
+
+If you need your records to be split with time component, then set `start_at` and `end_at` columns to `datetime` type.
+
+Use `TSRANGE` instead of `DATERANGE` when creating database constraint.
+
 ## Gapless records
 
 If you want to avoid gaps between records, you can include also `PeriodicRecords::Gapless`.

lib/periodic_records/model.rb

@@ -76,6 +76,18 @@ def periodic_dup
       dup
     end
 
+    def record_split_step
+      @record_split_step ||= begin
+        column = self.class.column_for_attribute(:start_at)
+        if column.type == :datetime
+           precision = column.precision || 6
+           Float("1.0e-#{precision}").seconds
+        else
+          1.day
+        end
+      end
+    end
+
     private
 
     def set_default_period
@@ -89,23 +101,23 @@ def destroy_overlapping_record(overlapping_record)
 
     def split_overlapping_record(overlapping_record)
       overlapping_record_end = overlapping_record.periodic_dup
-      overlapping_record_end.start_at = end_at + 1.day
+      overlapping_record_end.start_at = end_at + record_split_step
       overlapping_record_end.end_at   = overlapping_record.end_at
 
       overlapping_record_start = overlapping_record
-      overlapping_record_start.end_at = start_at - 1.day
+      overlapping_record_start.end_at = start_at - record_split_step
 
       overlapping_record_start.save(validate: false)
       overlapping_record_end.save(validate: false)
     end
 
     def adjust_overlapping_record_end_at(overlapping_record)
-      overlapping_record.end_at = start_at - 1.day
+      overlapping_record.end_at = start_at - record_split_step
       overlapping_record.save(validate: false)
     end
 
     def adjust_overlapping_record_start_at(overlapping_record)
-      overlapping_record.start_at = end_at + 1.day
+      overlapping_record.start_at = end_at + record_split_step
       overlapping_record.save(validate: false)
     end
 

periodic_records.gemspec

@@ -22,7 +22,7 @@ Gem::Specification.new do |spec|
   spec.add_runtime_dependency "activerecord", ">= 5.1"
   spec.add_runtime_dependency "activesupport", ">= 5.1"
 
-  spec.add_development_dependency "bundler", "~> 1.9"
+  spec.add_development_dependency "bundler", ">= 1.9"
   spec.add_development_dependency "rake", "~> 10.0"
   spec.add_development_dependency "rspec", "~> 3.3"
   spec.add_development_dependency "sqlite3"

spec/models.rb

@@ -15,6 +15,27 @@ def siblings
   end
 end
 
+class TimeSensitiveEmployee < ActiveRecord::Base
+  self.table_name = 'employees'
+
+  include PeriodicRecords::Associations
+
+  has_many :employee_assignments, inverse_of: :employee,
+    class_name: 'TimeSensitiveEmployeeAssignment',
+    foreign_key: :employee_id
+  has_periodic :employee_assignments, as: :assignments
+end
+
+class TimeSensitiveEmployeeAssignment < ActiveRecord::Base
+  include PeriodicRecords::Model
+
+  belongs_to :employee
+
+  def siblings
+    self.class.where(employee_id: employee_id).where.not(id: id)
+  end
+end
+
 class GaplessEmployee < ActiveRecord::Base
   self.table_name = 'employees'