Class: Apartment::Adapters::PostgresqlSchemaAdapter

Inherits:
AbstractAdapter show all
Defined in:
lib/apartment/adapters/postgresql_adapter.rb

Overview

Separate Adapter for Postgresql when using schemas

Instance Method Summary collapse

Methods inherited from AbstractAdapter

#create, #environmentify, #initialize, #process, #seed_data, #switch

Constructor Details

This class inherits a constructor from Apartment::Adapters::AbstractAdapter

Instance Method Details

#current_database ⇒ Object

Get the current schema search path

@return {String} current schema search path



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# File 'lib/apartment/adapters/postgresql_adapter.rb', line 41

def current_database
  ActiveRecord::Base.connection.schema_search_path
end

#drop(database) ⇒ Object

Drop the database schema

@param {String} database Database (schema) to drop



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# File 'lib/apartment/adapters/postgresql_adapter.rb', line 49

def drop(database)
  ActiveRecord::Base.connection.execute("DROP SCHEMA #{database} CASCADE")

rescue ActiveRecord::StatementInvalid
  raise SchemaNotFound, "The schema #{database.inspect} cannot be found."
end

#process_excluded_models ⇒ Object

Reset search path to default search_path

Set the table_name to always use the public namespace for excluded models



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# File 'lib/apartment/adapters/postgresql_adapter.rb', line 59

def process_excluded_models
  Apartment.excluded_models.each do |excluded_model|
    # Note that due to rails reloading, we now take string references to classes rather than
    # actual object references.  This way when we contantize, we always get the proper class reference
    if excluded_model.is_a? Class
      warn "[Deprecation Warning] Passing class references to excluded models is now deprecated, please use a string instead"
      excluded_model = excluded_model.name
    end

    excluded_model.constantize.tap do |klass|
      # some models (such as delayed_job) seem to load and cache their column names before this,
      # so would never get the public prefix, so reset first
      klass.reset_column_information

      # Ensure that if a schema *was* set, we override
      table_name = klass.table_name.split('.', 2).last

      # Not sure why, but Delayed::Job somehow ignores table_name_prefix...  so we'll just manually set table name instead
      klass.table_name = "public.#{table_name}"
    end
  end
end

#reset ⇒ Object

Reset schema search path to the default schema_search_path

@return {String} default schema search path



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# File 'lib/apartment/adapters/postgresql_adapter.rb', line 86

def reset
  ActiveRecord::Base.connection.schema_search_path = @defaults[:schema_search_path]
end