class PaperTrail::Queries::Versions::WhereObject

For public API documentation, see `where_object` in `mongo_trails/version_concern.rb`. @api private

Public Class Methods

new(version_model_class, attributes) click to toggle source
  • version_model_class - The class that VersionConcern was mixed into.

  • attributes - A `Hash` of attributes and values. See the public API documentation for details.

@api private

# File lib/mongo_trails/queries/versions/where_object.rb, line 14
def initialize(version_model_class, attributes)
  @version_model_class = version_model_class
  @attributes = attributes
end

Public Instance Methods

execute() click to toggle source

@api private

# File lib/mongo_trails/queries/versions/where_object.rb, line 20
def execute
  column = @version_model_class.columns_hash["object"]
  raise "where_object can't be called without an object column" unless column

  case column.type
  when :jsonb
    jsonb
  when :json
    json
  else
    text
  end
end

Private Instance Methods

json() click to toggle source

@api private

# File lib/mongo_trails/queries/versions/where_object.rb, line 37
def json
  predicates = []
  values = []
  @attributes.each do |field, value|
    predicates.push "object->>? = ?"
    values.concat([field, value.to_s])
  end
  sql = predicates.join(" and ")
  @version_model_class.where(sql, *values)
end
jsonb() click to toggle source

@api private

# File lib/mongo_trails/queries/versions/where_object.rb, line 49
def jsonb
  @version_model_class.where("object @> ?", @attributes.to_json)
end
text() click to toggle source

@api private

# File lib/mongo_trails/queries/versions/where_object.rb, line 54
def text
  arel_field = @version_model_class.arel_table[:object]
  where_conditions = @attributes.map { |field, value|
    ::PaperTrail.serializer.where_object_condition(arel_field, field, value)
  }
  where_conditions = where_conditions.reduce { |a, e| a.and(e) }
  @version_model_class.where(where_conditions)
end