how to destroy the different corresponding ids of different connected tables from one interface's destroy

if my model is like:

class ss < ActiveRecord::Base has_many :ss_schedules end

class ssSchedule < ActiveRecord::Base belongs_to :ss end

class ssRuleMapping < ActiveRecord::Base belongs_to :ss belongs_to :ss_rules end

• now first query the same as stated above if i have main interface is ss.
• second query is 开发者_JS百科I hav a table called ss_rules which contains certain rules. If I want store the id of a certain rule in ss_rule_mappings as well as the id of 'ss' for which that rule is selected. hence ss_rule_mapping will contain id of itself, id of ss, id of rule. Thankyou

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In your model association try something like this :

has_many :models, :dependent => :destroy

You can find documentation about this here and here

If you want help, edit your post with the code of concerned models