diff --git a/app/models/log.rb b/app/models/log.rb
index d24182a4..a3bc1e9e 100755
--- a/app/models/log.rb
+++ b/app/models/log.rb
@@ -10,10 +10,8 @@ class Log < ActiveRecord::Base
   belongs_to :region
 
   has_many :log_volunteers
-  has_many :volunteers, through: :log_volunteers,
-                        conditions: {'log_volunteers.active' => true}
-  has_many :inactive_volunteers, through: :log_volunteers,
-                                 conditions: {'log_volunteers.active' => false}
+  has_many :volunteers, -> { where(log_volunteers: { active: true }) }, through: :log_volunteers
+  has_many :inactive_volunteers, -> { where(log_volunteers: { active: false }) }, through: :log_volunteers
   has_many :log_recipients
   has_many :recipients, through: :log_recipients
   has_many :log_parts
@@ -27,14 +25,14 @@ class Log < ActiveRecord::Base
   accepts_nested_attributes_for :log_volunteers
   accepts_nested_attributes_for :schedule_chain
 
-  validates :notes, presence: { if: Proc.new{ |a| a.complete and a.summed_weight == 0 and a.summed_count == 0 and a.why_zero == 2 },
+  validates :notes, presence: { if: Proc.new{ |a| a.complete && a.summed_weight == 0 && a.summed_count == 0 && a.why_zero == 2 },
                                 message: "can't be blank if weights/counts are all zero: let us know what happened!" }
   validates :transport_type_id, presence: { if: :complete }
   validates :donor_id, presence: { if: :complete }
   validates :scale_type_id, presence: { if: :complete }
   validates :when, presence: true
   validates :hours_spent, presence: { if: :complete }
-  validates :why_zero, presence: { if: Proc.new{ |a| a.complete and a.summed_weight == 0 and a.summed_count == 0 } }
+  validates :why_zero, presence: { if: Proc.new{ |a| a.complete && a.summed_weight == 0 && a.summed_count == 0 } }
 
   attr_accessible :region_id, :donor_id, :why_zero,
                   :food_type_id, :transport_type_id, :flag_for_admin, :notes,
@@ -46,7 +44,7 @@ class Log < ActiveRecord::Base
   # units conversion on scale type --- we always store in lbs in the database
   before_save { |record|
     return if record.region.nil?
-    record.scale_type = record.region.scale_types.first if record.scale_type.nil? and record.region.scale_types.length == 1
+    record.scale_type = record.region.scale_types.first if record.scale_type.nil? && record.region.scale_types.length == 1
     unless record.scale_type.nil?
       record.weight_unit = record.scale_type.weight_unit if record.weight_unit.nil?
       record.log_parts.each{ |lp|
diff --git a/app/models/schedule.rb b/app/models/schedule.rb
index c77c934c..b23404cb 100755
--- a/app/models/schedule.rb
+++ b/app/models/schedule.rb
@@ -2,13 +2,13 @@
 
 class Schedule < ActiveRecord::Base
   include RankedModel
+  default_scope { order(position: :asc) }
 
   has_many :logs
 
   belongs_to :location
   belongs_to :schedule_chain
   ranks :position, with_same: :schedule_chain_id
-  default_scope order('position ASC')
 
   has_many :schedule_parts
   has_many :food_types, through: :schedule_parts
diff --git a/app/models/schedule_chain.rb b/app/models/schedule_chain.rb
index 0b0a06bc..db47cb3f 100755
--- a/app/models/schedule_chain.rb
+++ b/app/models/schedule_chain.rb
@@ -8,8 +8,7 @@ class ScheduleChain < ActiveRecord::Base
   belongs_to :region
 
   has_many :schedule_volunteers
-  has_many :volunteers, through: :schedule_volunteers,
-                        conditions: { 'schedule_volunteers.active' => true }
+  has_many :volunteers, -> { where(schedule_volunteers: { active: true }) }, through: :schedule_volunteers
 
   has_many :schedules
   has_many :locations, through: :schedules
diff --git a/app/models/schedule_volunteer.rb b/app/models/schedule_volunteer.rb
index 907fc9b7..9c315f9e 100755
--- a/app/models/schedule_volunteer.rb
+++ b/app/models/schedule_volunteer.rb
@@ -7,4 +7,5 @@ class ScheduleVolunteer < ActiveRecord::Base
   attr_accessible :schedule_chain_id, :volunteer_id, :active
 
   accepts_nested_attributes_for :volunteer
+  scope :active, -> { where(active: true) }
 end
diff --git a/app/models/volunteer.rb b/app/models/volunteer.rb
index 5c4c1351..01c42941 100755
--- a/app/models/volunteer.rb
+++ b/app/models/volunteer.rb
@@ -25,22 +25,13 @@ class Volunteer < ActiveRecord::Base
   has_many :regions, through: :assignments
 
   has_many :schedule_volunteers
-  has_many :schedule_chains, through: :schedule_volunteers,
-                             conditions: { 'schedule_volunteers.active' => true }
-  has_many :prior_schedules, through: :schedule_volunteers,
-                             conditions: { 'schedule_volunteers.active' => false },
-                             class_name: 'ScheduleChain'
+  has_many :schedule_chains, -> { where(schedule_volunteers: { active: true }) }, through: :schedule_volunteers
+  has_many :prior_schedules, -> { where(schedule_volunteers: { active: false }) }, through: :schedule_volunteers, class_name: 'ScheduleChain'
 
   has_many :log_volunteers
-  has_many :logs, through: :log_volunteers,
-                  conditions: { log_volunteers: { active: true } }
-  has_many :completed_logs, through: :log_volunteers,
-                            conditions: { logs: { complete: true } },
-                            class_name: 'Log', source: :log
-
-  has_many :prior_logs, through: :log_volunteers,
-                        conditions: { 'log_volunteers.active' => false },
-                        class_name: 'Log'
+  has_many :logs, -> { where(log_volunteers: { active: true }) }, through: :log_volunteers
+  has_many :completed_logs, -> { where(logs: { complete: true }) }, through: :log_volunteers, class_name: 'Log', source: :log
+  has_many :prior_logs, -> { where(log_volunteers: { active: false }) }, through: :log_volunteers, class_name: 'Log', source: :log
 
   attr_accessible :pre_reminders_too, :region_ids, :password,
                   :password_confirmation, :remember_me, :admin_notes, :email,