Module: Scopiform::Utilities

Defined in:
lib/scopiform/utilities.rb

Class Method Summary collapse

Class Method Details

.association_scope(active_record, association, method, value, ctx:) ⇒ Object 



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# File 'lib/scopiform/utilities.rb', line 13

def self.association_scope(active_record, association, method, value, ctx:)
  is_root = ctx.nil?
  ctx = ScopeContext.from(ctx)
  ctx.set(active_record.arel_table) if is_root || ctx.arel_table.blank?

  ctx.association = association
  ctx.build_joins
  has_manys = ctx.has_manys.present?

  applied = ctx.association.klass.send(method, value, ctx: ScopeContext.from(ctx).set(ctx.association_arel_table))

  if is_root && !has_manys
    ctx.scopes.reduce(active_record.joins(ctx.joins).merge(applied)) { |chain, scope| chain.merge(scope) }
  elsif is_root && has_manys
    ctx.scopes.reduce(active_record.distinct.joins(ctx.joins).merge(applied)) { |chain, scope| chain.merge(scope) }
  else
    ctx.scopes.reduce(active_record.all.merge(applied)) { |chain, scope| chain.merge(scope) }
  end
end

.cast_to_text(arel_column, connection) ⇒ Object 



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# File 'lib/scopiform/utilities.rb', line 5

def self.cast_to_text(arel_column, connection)
  cast_to = connection.adapter_name.downcase.starts_with?('mysql') ? 'CHAR' : 'TEXT'
  Arel::Nodes::NamedFunction.new(
    'CAST',
    [arel_column.as(cast_to)]
  )
end

.truthy_hash(hash) ⇒ Object 



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# File 'lib/scopiform/utilities.rb', line 33

def self.truthy_hash(hash)
  hash.values.find { |value| value.is_a?(Hash) ? truthy_hash(value) : value.present? }
end