Rails scope for IS NOT NULL and is not empty/blank?

Question

I have the following scope:

scope :comments, :conditions => [\'text_value IS NOT NULL\']

But I also want the conditions to say \"OR text_val

Answer 1

Personally I am doing like this:

1) Add to initializers

class Arel::Attributes::Attribute
  # Encode column name like: `posts`.`author_id`
  def to_sql
    "`#{relation.table_name}`.`#{name}`"
  end

  def is_not_empty
    "#{to_sql} <> ''"
  end
end

2) Add to your model

scope :comments, -> { where(arel_table[:text_value].is_not_empty) }

Good luck!