Class: Qdsl::Column
- Inherits:
-
Object
- Object
- Qdsl::Column
- Defined in:
- lib/column.rb
Instance Attribute Summary collapse
-
#alias_name ⇒ Object
readonly
Returns the value of attribute alias_name.
-
#name ⇒ Object
readonly
Returns the value of attribute name.
-
#source ⇒ Object
readonly
Returns the value of attribute source.
Class Method Summary collapse
Instance Method Summary collapse
- #equals(column) ⇒ Object
-
#initialize(name, alias_name = nil, source = nil) ⇒ Column
constructor
A new instance of Column.
- #render(context, id) ⇒ Object
- #with_alias_name(alias_name) ⇒ Object (also: #as)
- #with_name(name) ⇒ Object
- #with_source(source) ⇒ Object
Constructor Details
#initialize(name, alias_name = nil, source = nil) ⇒ Column
Returns a new instance of Column.
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# File 'lib/column.rb', line 15 def initialize(name, alias_name = nil, source = nil) @name = name.to_s @alias_name = alias_name.nil? ? nil : alias_name.to_s @source = source end |
Instance Attribute Details
#alias_name ⇒ Object (readonly)
Returns the value of attribute alias_name.
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# File 'lib/column.rb', line 3 def alias_name @alias_name end |
#name ⇒ Object (readonly)
Returns the value of attribute name.
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# File 'lib/column.rb', line 3 def name @name end |
#source ⇒ Object (readonly)
Returns the value of attribute source.
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# File 'lib/column.rb', line 3 def source @source end |
Class Method Details
Instance Method Details
#equals(column) ⇒ Object
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# File 'lib/column.rb', line 38 def equals(column) Equals.new(self, column) end |
#render(context, id) ⇒ Object
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# File 'lib/column.rb', line 34 def render(context, id) @alias_name ? "#{id}.#{@name} AS #{@alias_name}" : "#{id}.#{@name}" end |
#with_alias_name(alias_name) ⇒ Object Also known as: as
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# File 'lib/column.rb', line 25 def with_alias_name(alias_name) Column.new(@name, alias_name, @source) end |