Class: ActiveRecord::Relation

Inherits:
Object
  • Object
show all
Defined in:
lib/composite_primary_keys/relation.rb,
lib/composite_primary_keys/relation/where_clause.rb

Defined Under Namespace

Classes: WhereClause

Instance Method Summary collapse

Constructor Details

#initialize(klass, table, predicate_builder, values = {}) ⇒ Relation

Returns a new instance of Relation.



4
5
6
7
 
# File 'lib/composite_primary_keys/relation.rb', line 4

def initialize(klass, table, predicate_builder, values = {})
  initialize_without_cpk(klass, table, predicate_builder, values)
  add_cpk_support if klass && klass.composite?
end

Instance Method Details

#add_cpk_support ⇒ Object 



15
16
17
 
# File 'lib/composite_primary_keys/relation.rb', line 15

def add_cpk_support
  extend CompositePrimaryKeys::CompositeRelation
end

#delete_all(conditions = nil) ⇒ Object 



50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
 
# File 'lib/composite_primary_keys/relation.rb', line 50

def delete_all(conditions = nil)
  invalid_methods = INVALID_METHODS_FOR_DELETE_ALL.select { |method|
    if MULTI_VALUE_METHODS.include?(method)
      send("#{method}_values").any?
    elsif SINGLE_VALUE_METHODS.include?(method)
      send("#{method}_value")
    elsif CLAUSE_METHODS.include?(method)
      send("#{method}_clause").any?
    end
  }
  if invalid_methods.any?
    raise ActiveRecordError.new("delete_all doesn't support #{invalid_methods.join(', ')}")
  end

  if conditions
    ActiveSupport::Deprecation.warn("Passing conditions to delete_all is deprecated and will be removed in Rails 5.1.\nTo achieve the same use where(conditions).delete_all.\n".squish)
    where(conditions).delete_all
  else
    stmt = Arel::DeleteManager.new
    stmt.from(table)

    # CPK

    if joins_values.any? && @klass.composite?
      arel_attributes = Array(primary_key).map do |key|
        arel_attribute(key)
      end.to_composite_keys
      @klass.connection.join_to_delete(stmt, arel, arel_attributes)
    elsif joins_values.any?
      @klass.connection.join_to_delete(stmt, arel, arel_attribute(primary_key))
    else
      stmt.wheres = arel.constraints
    end

    affected = @klass.connection.delete(stmt, 'SQL', bound_attributes)

    reset
    affected
  end
end

#initialize_copy(other) ⇒ Object 



10
11
12
13
 
# File 'lib/composite_primary_keys/relation.rb', line 10

def initialize_copy(other)
  initialize_copy_without_cpk(other)
  add_cpk_support if klass.composite?
end

#initialize_copy_without_cpk ⇒ Object 



9
 
# File 'lib/composite_primary_keys/relation.rb', line 9

alias :initialize_copy_without_cpk :initialize_copy

#initialize_without_cpk ⇒ Object 



3
 
# File 'lib/composite_primary_keys/relation.rb', line 3

alias :initialize_without_cpk :initialize