Class: FluentQuery::Drivers::Shared::Tokens::SQL::Truncate

Inherits:
FluentQuery::Drivers::Shared::Tokens::SQLToken show all
Defined in:
lib/fluent-query/drivers/shared/tokens/sql/truncate.rb

Overview

Generic SQL query TRUNCATE token.

Constant Summary

Constants inherited from FluentQuery::Drivers::Shared::Tokens::SQLToken

FluentQuery::Drivers::Shared::Tokens::SQLToken::TRANSFORMER

Instance Method Summary collapse

Methods inherited from FluentQuery::Drivers::Shared::Tokens::SQLToken

#initialize

Constructor Details

This class inherits a constructor from FluentQuery::Drivers::Shared::Tokens::SQLToken

Instance Method Details

#render!(mode = nil) ⇒ Object 



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# File 'lib/fluent-query/drivers/shared/tokens/sql/truncate.rb', line 23

def render!(mode = nil)
    processor = @_query.processor
    result = "TRUNCATE TABLE "

    @_subtokens.each do |token|
        arguments = token.arguments

        # FROM token
        
        if token.name == :truncate

            # Checks for arguments
            if (not arguments.first.symbol?)
                raise FluentQuery::Drivers::Exception::new("Symbol argument expected for #truncate method.")
            end

            # Process
            table = processor.quote_identifier(arguments.first)
            result << table

        # Unknown tokens renders directly
        else
            result << self.unknown_token::new(@_driver, @_query, [token]).render!
        end
        
    end

    result << " CASCADE"
    return result
end