Module: DynamicImage::Schema

Defined in:

lib/dynamic_image/schema.rb

Overview

DynamicImage Schema

The database schema Model expects on the table holding the image.

DynamicImage doesn't own that table. Unlike dynamic_image_variants, which has a fixed name and an engine migration, the image table is created in the application by the dynamic_image:resource generator, under whatever name the application picked, and there may be more than one. This is the single definition of what it should contain.

See Also:

• Model

Constant Summary

ATTRIBUTES =

The expected columns, in the order they should appear in a migration. Each is described by its migration type and whether it accepts NULL.

frame_count and alpha are nullable. NULL means the image predates them being recorded, which is not the same as knowing the image is a still or opaque.

Returns:

• (Hash{Symbol => Hash})

{
  content_hash: { type: :string, null: false },
  content_type: { type: :string, null: false },
  content_length: { type: :integer, null: false },
  filename: { type: :string, null: false },
  colorspace: { type: :string, null: false },
  real_width: { type: :integer, null: false },
  real_height: { type: :integer, null: false },
  frame_count: { type: :integer, null: true },
  alpha: { type: :boolean, null: true },
  crop_width: { type: :integer, null: true },
  crop_height: { type: :integer, null: true },
  crop_start_x: { type: :integer, null: true },
  crop_start_y: { type: :integer, null: true },
  crop_gravity_x: { type: :integer, null: true },
  crop_gravity_y: { type: :integer, null: true }
}.freeze

INDEXES =

The expected indexes.

Returns:

• (Array<Hash>)

[
  { columns: i[content_hash], unique: false }
].freeze