Class: DBPurger::Plan

Inherits:
Object
  • Object
show all
Defined in:
lib/db-purger/plan.rb

Overview

DBPurger::Plan is used to describe the relationship between tables

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Plan

Returns a new instance of Plan.



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# File 'lib/db-purger/plan.rb', line 13

def initialize
  @parent_tables = []
  @child_tables = []
  @ignore_tables = []
  @search_tables = []
end

Instance Attribute Details

#base_table ⇒ Object

Returns the value of attribute base_table.



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# File 'lib/db-purger/plan.rb', line 6

def base_table
  @base_table
end

#child_tables ⇒ Object (readonly)

Returns the value of attribute child_tables.



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# File 'lib/db-purger/plan.rb', line 8

def child_tables
  @child_tables
end

#ignore_tables ⇒ Object (readonly)

Returns the value of attribute ignore_tables.



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# File 'lib/db-purger/plan.rb', line 8

def ignore_tables
  @ignore_tables
end

#parent_tables ⇒ Object (readonly)

Returns the value of attribute parent_tables.



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# File 'lib/db-purger/plan.rb', line 8

def parent_tables
  @parent_tables
end

#search_tables ⇒ Object (readonly)

Returns the value of attribute search_tables.



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# File 'lib/db-purger/plan.rb', line 8

def search_tables
  @search_tables
end

Instance Method Details

#empty? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/db-purger/plan.rb', line 39

def empty?
  @base_table.nil? &&
    @parent_tables.empty? &&
    @child_tables.empty? &&
    @search_tables.empty?
end

#ignore_table?(table_name) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/db-purger/plan.rb', line 46

def ignore_table?(table_name)
  @ignore_tables.any? do |ignore_table_name|
    if ignore_table_name.is_a?(Regexp)
      ignore_table_name.match(table_name)
    else
      ignore_table_name.to_s == table_name
    end
  end
end

#purge!(database, purge_value) ⇒ Object 



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# File 'lib/db-purger/plan.rb', line 20

def purge!(database, purge_value)
  MetricSubscriber.reset!
  PurgeTable.new(database, @base_table, @base_table.field, purge_value).purge!
end

#table_names ⇒ Object 



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# File 'lib/db-purger/plan.rb', line 35

def table_names
  tables.map(&:name)
end

#tables ⇒ Object 



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# File 'lib/db-purger/plan.rb', line 25

def tables
  all_tables = @base_table ? [@base_table] + @base_table.tables : []
  all_tables += @parent_tables + @parent_tables.map(&:tables) +
                @child_tables + @child_tables.map(&:tables) +
                @search_tables + @search_tables.map(&:tables)
  all_tables.flatten!
  all_tables.compact!
  all_tables
end