Class: FeideeUtils::Transaction

Inherits:
Record
  • Object
show all
Includes:
Mixins::Type
Defined in:
lib/feidee_utils/transaction.rb

Defined Under Namespace

Classes: InconsistentAmountException, InconsistentBuyerAndSellerException, InconsistentCategoryException, ModifiedTransaction, TransferLackBuyerOrSellerException, TransferWithCategoryException, TransfersNotPaired

Constant Summary collapse

FieldMappings = 
{
  raw_created_at:         "createdTime",
  raw_modified_at:        "modifiedTime",
  raw_trade_at:           "tradeTime",
  raw_type:               "type",
  memo:                   "memo",
  buyer_account_poid:     "buyerAccountPOID",
  buyer_category_poid:    "buyerCategoryPOID",
  seller_account_poid:    "sellerAccountPOID",
  seller_category_poid:   "sellerCategoryPOID",
  raw_buyer_deduction:    "buyerMoney",
  raw_seller_addition:    "sellerMoney",
  uuid:                   "relation",
}.freeze
IgnoredFields = 
[
  "creatorTradingEntityPOID",
  "modifierTradingEntityPOID",
  "ffrom",                # The signature of the App writting this transaction.
  "photoName",            # To be added
  "photoNeedUpload",      # To be added
  "relationUnitPOID",     # WTF
  "clientID",             # WTF
  "FSourceKey",           # WTF
].freeze

Instance Attribute Summary

Attributes inherited from Record

#field, #field_type

Attributes included from Record::Namespaced::ClassMethods

#child_classes

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Mixins::Type

included, #type

Methods inherited from Record

#initialize

Methods included from Record::Accessors::ClassMethods

#define_accessors, #define_entity_accessor

Methods included from Record::Namespaced::ClassMethods

#collect_subclass, #generate_namespaced_record_classes

Methods included from Record::Persistent::ClassMethods

#all, #find, #find_by_id, #genereate_names

Methods included from Record::Accessors

#last_update_time, #poid

Constructor Details

This class inherits a constructor from FeideeUtils::Record

Class Method Details

.validate_global_integrity ⇒ Object 



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# File 'lib/feidee_utils/transaction.rb', line 67

def self.validate_global_integrity
  uuids_map = all.inject({}) do |uuids, transaction|
    if transaction.is_transfer?
      uuid = transaction.uuid
      uuids[uuid] ||= [nil, nil]
      uuids[uuid][transaction.raw_type - 2] = transaction
    end
    uuids
  end

  uuids_map.each do |uuid, transfers|
    valid = true
    valid &&= transfers[0] != nil
    valid &&= transfers[1] != nil
    valid &&= transfers[0]. == transfers[1].
    valid &&= transfers[0]. == transfers[1].
    raise TransfersNotPaired.new([uuid] + transfers) unless valid
  end
end

Instance Method Details

#amount ⇒ Object 



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# File 'lib/feidee_utils/transaction.rb', line 158

def amount
  # Buyer deduction is always equal to seller addition.
  (buyer_deduction + seller_addition) / 2
end

#buyer_deduction ⇒ Object

Amount accessors



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# File 'lib/feidee_utils/transaction.rb', line 150

def buyer_deduction
  to_bigdecimal sign_by_type(raw_buyer_deduction)
end

#category_poid ⇒ Object 



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# File 'lib/feidee_utils/transaction.rb', line 142

def category_poid
  # At least one of those two must be 0.
  buyer_category_poid + seller_category_poid
end

#created_at ⇒ Object 



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# File 'lib/feidee_utils/transaction.rb', line 126

def created_at
  timestamp_to_time(raw_created_at)
end

#has_category? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/feidee_utils/transaction.rb', line 138

def has_category?
  category_poid != 0
end

#is_initial_balance? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/feidee_utils/transaction.rb', line 167

def is_initial_balance?
  type == :positive_initial_balance or type == :negative_initial_balance
end

#is_transfer? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/feidee_utils/transaction.rb', line 163

def is_transfer?
  type == :transfer_buyer or type == :transfer_seller
end

#modified_at ⇒ Object 



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# File 'lib/feidee_utils/transaction.rb', line 130

def modified_at
  timestamp_to_time(raw_modified_at)
end

#revised_account_poid ⇒ Object 



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# File 'lib/feidee_utils/transaction.rb', line 171

def 
  if type == :transfer_buyer
    
  elsif type == :transfer_seller
    
  else
     + 
  end
end

#revised_amount ⇒ Object 



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# File 'lib/feidee_utils/transaction.rb', line 182

def revised_amount
   = 
  if  == 
    -buyer_deduction
  elsif  == 
    seller_addition
  else
    raise "Unexpected revised account poid #{account_poid}."
  end
end

#seller_addition ⇒ Object 



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# File 'lib/feidee_utils/transaction.rb', line 154

def seller_addition
  to_bigdecimal sign_by_type(raw_seller_addition)
end

#trade_at ⇒ Object 



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# File 'lib/feidee_utils/transaction.rb', line 134

def trade_at
  timestamp_to_time(raw_trade_at)
end

#validate_integrity ⇒ Object 



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# File 'lib/feidee_utils/transaction.rb', line 23

def validate_integrity
  if is_transfer?
    unless  != 0 and  != 0
      raise TransferLackBuyerOrSellerException,
        "Both buyer and seller should be set in a transfer. " +
        "Buyer account POID: #{buyer_account_poid}. Seller account POID: #{seller_account_poid}.\n" +
        inspect
    end
    unless buyer_category_poid == 0 and seller_category_poid == 0
      raise TransferWithCategoryException,
        "Neither buyer or seller category should be set in a transfer. " +
        "Buyer category POID: #{buyer_category_poid}. Seller category POID: #{seller_category_poid}.\n" +
        inspect
    end
  else
    unless ( == 0) ^ ( == 0)
      raise InconsistentBuyerAndSellerException,
        "Exactly one of buyer and seller should be set in a non-transfer transaction. " +
        "Buyer account POID: #{buyer_account_poid}. Seller account POID: #{seller_account_poid}.\n" +
        inspect
    end

    # We could enforce that category is set to the matching party (buyer or seller) of account.
    # However the implementation could handle all situations, as long as only one of them is set.
    # Thus no extra check is done here.
    unless buyer_category_poid == 0 or seller_category_poid == 0
      raise InconsistentCategoryException,
        "Only one of buyer and seller category should be set in a non-transfer transaction. "
        "Buyer category POID: #{buyer_category_poid}. Seller category POID: #{seller_category_poid}.\n" +
        inspect
    end
  end

  unless raw_buyer_deduction == raw_seller_addition
    raise InconsistentAmountException,
      "Buyer and seller should have the same amount set. " +
      "Buyer deduction: #{buyer_deduction}, seller_addition: #{seller_addition}.\n" +
    inspect
  end
end