Class: Trigger

Inherits:
Object
  • Object
show all
Defined in:
lib/polymorpheus/trigger.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(arr) ⇒ Trigger

Returns a new instance of Trigger.

Raises:

  • (ArgumentError) 


6
7
8
9
10
11
12
13
 
# File 'lib/polymorpheus/trigger.rb', line 6

def initialize(arr)
  raise ArgumentError unless arr.is_a?(Array) && arr.length == 11
  [:name, :event, :table, :statement, :timing, :created, :sql_mode,
    :definer, :charset, :collation_connection, :db_collation].
  each_with_index do |attr, ind|
    self.send("#{attr}=", arr[ind])
  end
end

Instance Attribute Details

#charset ⇒ Object

Returns the value of attribute charset.



3
4
5
 
# File 'lib/polymorpheus/trigger.rb', line 3

def charset
  @charset
end

#collation_connection ⇒ Object

Returns the value of attribute collation_connection.



3
4
5
 
# File 'lib/polymorpheus/trigger.rb', line 3

def collation_connection
  @collation_connection
end

#created ⇒ Object

Returns the value of attribute created.



3
4
5
 
# File 'lib/polymorpheus/trigger.rb', line 3

def created
  @created
end

#db_collation ⇒ Object

Returns the value of attribute db_collation.



3
4
5
 
# File 'lib/polymorpheus/trigger.rb', line 3

def db_collation
  @db_collation
end

#definer ⇒ Object

Returns the value of attribute definer.



3
4
5
 
# File 'lib/polymorpheus/trigger.rb', line 3

def definer
  @definer
end

#event ⇒ Object

Returns the value of attribute event.



3
4
5
 
# File 'lib/polymorpheus/trigger.rb', line 3

def event
  @event
end

#name ⇒ Object

Returns the value of attribute name.



3
4
5
 
# File 'lib/polymorpheus/trigger.rb', line 3

def name
  @name
end

#sql_mode ⇒ Object

Returns the value of attribute sql_mode.



3
4
5
 
# File 'lib/polymorpheus/trigger.rb', line 3

def sql_mode
  @sql_mode
end

#statement ⇒ Object

Returns the value of attribute statement.



3
4
5
 
# File 'lib/polymorpheus/trigger.rb', line 3

def statement
  @statement
end

#table ⇒ Object

Returns the value of attribute table.



3
4
5
 
# File 'lib/polymorpheus/trigger.rb', line 3

def table
  @table
end

#timing ⇒ Object

Returns the value of attribute timing.



3
4
5
 
# File 'lib/polymorpheus/trigger.rb', line 3

def timing
  @timing
end

Instance Method Details

#columns ⇒ Object 



15
16
17
18
19
20
21
 
# File 'lib/polymorpheus/trigger.rb', line 15

def columns
  /IF\((.*)\) \<\> 1/.match(self.statement) do |match|
    match[1].split(' + ').collect do |submatch|
      /NEW\.([^ ]*)/.match(submatch)[1]
    end
  end
end

#schema_statement ⇒ Object 



23
24
25
26
27
 
# File 'lib/polymorpheus/trigger.rb', line 23

def schema_statement
  # note that we don't need to worry about unique indices or foreign keys
  # because separate schema statements will be generated for them
  "  add_polymorphic_triggers(:#{table}, #{columns.to_s})"
end