Class: ClickHouse::Definition::Column

Inherits:
Object
  • Object
show all
Defined in:
lib/click_house/definition/column.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(params = {}) {|_self| ... } ⇒ Column

Returns a new instance of Column.

Yields:

  • (_self)

Yield Parameters:



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# File 'lib/click_house/definition/column.rb', line 15

def initialize(params = {})
  params.each { |k, v| public_send("#{k}=", v) }
  yield(self) if block_given?
end

Instance Attribute Details

#default ⇒ Object

Returns the value of attribute default.



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# File 'lib/click_house/definition/column.rb', line 11

def default
  @default
end

#extensions ⇒ Object

Returns the value of attribute extensions.



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# File 'lib/click_house/definition/column.rb', line 10

def extensions
  @extensions
end

#low_cardinality ⇒ Object

Returns the value of attribute low_cardinality.



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# File 'lib/click_house/definition/column.rb', line 9

def low_cardinality
  @low_cardinality
end

#materialized ⇒ Object

Returns the value of attribute materialized.



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# File 'lib/click_house/definition/column.rb', line 12

def materialized
  @materialized
end

#name ⇒ Object

Returns the value of attribute name.



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# File 'lib/click_house/definition/column.rb', line 6

def name
  @name
end

#nullable ⇒ Object

Returns the value of attribute nullable.



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# File 'lib/click_house/definition/column.rb', line 8

def nullable
  @nullable
end

#ttl ⇒ Object

Returns the value of attribute ttl.



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# File 'lib/click_house/definition/column.rb', line 13

def ttl
  @ttl
end

#type ⇒ Object

Returns the value of attribute type.



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# File 'lib/click_house/definition/column.rb', line 7

def type
  @type
end

Instance Method Details

#extension_type ⇒ Object 



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# File 'lib/click_house/definition/column.rb', line 42

def extension_type
  extensions.nil? ? type : format(type, *extensions)
rescue TypeError, ArgumentError
  raise StandardError, "please provide extensions for <#{type}>"
end

#opts ⇒ Object 



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# File 'lib/click_house/definition/column.rb', line 28

def opts
  options = {
    DEFAULT: Util::Statement.ensure(default, default),
    MATERIALIZED: Util::Statement.ensure(materialized, materialized),
    TTL: Util::Statement.ensure(ttl, ttl)
  }.compact

  result = options.each_with_object([]) do |(key, value), object|
    object << "#{key} #{value}"
  end

  result.join(' ')
end

#to_s ⇒ Object 



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# File 'lib/click_house/definition/column.rb', line 20

def to_s
  type = extension_type
  type = "Nullable(#{type})" if nullable
  type = "LowCardinality(#{type})" if low_cardinality

  "#{name} #{type} #{opts}"
end