Class: SqlBeautifier::Clauses::From

Inherits:
Base
  • Object
show all
Defined in:
lib/sql_beautifier/clauses/from.rb

Constant Summary collapse

KEYWORD = 
"from"

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(value, table_registry:) ⇒ From

Returns a new instance of From.



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# File 'lib/sql_beautifier/clauses/from.rb', line 12

def initialize(value, table_registry:)
  super(value)

  @table_registry = table_registry
end

Class Method Details

.call ⇒ Object 



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# File 'lib/sql_beautifier/clauses/from.rb', line 8

def self.call(...)
  new(...).call
end

Instance Method Details

#call ⇒ Object 



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# File 'lib/sql_beautifier/clauses/from.rb', line 18

def call
  join_parts = split_join_parts
  primary_table_text = join_parts.shift.strip
  primary_lookup_name = TableReference.derived_table_lookup_name_from(primary_table_text) || Util.first_word(primary_table_text)
  primary_reference = @table_registry.reference_for(primary_lookup_name)
  trailing_sentinels = Join.extract_trailing_sentinels(primary_table_text)

  lines = []
  lines << "#{keyword_prefix}#{primary_reference.render(trailing_sentinels: trailing_sentinels)}"

  join_parts.each do |join_text|
    join = Join.parse(join_text, table_registry: @table_registry)
    next unless join

    lines << join.render(continuation_indent: continuation_indent, condition_indent: join_condition_indentation)
  end

  lines.join("\n")
end