Class: Localtower::Generators::Migration

Inherits:
Object
  • Object
show all
Defined in:
lib/localtower/generators/migration.rb

Constant Summary collapse

TYPES = 
[
  {
    name: "string",
    example: "'foo'",
  },
  {
    name: "text",
    example: "'long foo'",
  },
  {
    name: "datetime",
    example: "2024-07-22 12:28:31.487318",
  },
  {
    name: "date",
    example: "2024-09-24",
  },
  {
    name: "uuid",
    example: "'860f5e00-0000-0000-0000-000000000000'",
  },
  {
    name: "integer",
    example: "123",
  },
  {
    name: "bigint",
    example: "123",
  },
  {
    name: "float",
    example: "30.12",
  },
  {
    name: "numeric",
    example: "30.12",
  },
  {
    name: "decimal",
    example: "30.12",
  },
  {
    name: "json",
    example: "{\"foo\": \"bar\"}",
  },
  {
    name: "jsonb",
    example: "{\"foo\": \"bar\"}",
  },
  {
    name: "binary",
    example: "01010001",
  },
  {
    name: "boolean",
    example: "true/false",
  },
  {
    name: "array",
    example: "[1, 2, 3]",
  },
  {
    name: "blob",
    example: "x3F7F2A9",
  },
  {
    name: "references",
    example: "MyModel",
  }
]
ACTIONS = 
[
  {
    name: "add_column",
    label: "Add column",
    example: "add_column :users, :name, :string",
  },
  {
    name: "add_index_to_column",
    label: "Add index",
    example: "add_index :users, :name",
  },
  {
    name: "belongs_to",
    label: "Add reference",
    example: "add_reference :posts, :user",
  },
  {
    name: "remove_index_to_column",
    label: "Remove index",
    example: "remove_index :users, :name",
  },
  {
    name: "remove_column",
    label: "Remove column",
    example: "remove_column :users, :name",
  },
  {
    name: "change_column_type",
    label: "Change column type",
    example: "change_column :users, :name, :string",
  },
  {
    name: "rename_column",
    label: "Rename column",
    example: "rename_column :users, :name, :new_name",
  },
  {
    name: "drop_table",
    label: "Drop table",
    example: "drop_table :users",
  }
]

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(migrations, migration_name = nil) ⇒ Migration

Returns a new instance of Migration.



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# File 'lib/localtower/generators/migration.rb', line 245

def initialize(migrations, migration_name = nil)
  @thor = ThorGeneratorMigration.new

  # stringify keys:
  @migrations = JSON[migrations.to_json]
  @migration_name = migration_name
end

Instance Attribute Details

#migrations ⇒ Object (readonly)

Returns the value of attribute migrations.



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# File 'lib/localtower/generators/migration.rb', line 309

def migrations
  @migrations
end

#thor ⇒ Object (readonly)

Returns the value of attribute thor.



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# File 'lib/localtower/generators/migration.rb', line 309

def thor
  @thor
end

Instance Method Details

#run ⇒ Object

const DEFAULT_LINE = 

model_name: MODELS[0] ? MODELS[0].value : '',
table_name: MODELS[0] ? MODELS[0].table_name : '',
action_name: 'add_column',
column_type: 'string',
column_name: '',
new_column_name: '',
new_column_type: '',
default: '',
unique: false,
foreign_key: false,
index: '',
index_algorithm: 'default',
index_name: '',
nullable: true

;



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# File 'lib/localtower/generators/migration.rb', line 270

def run
  if Localtower::Tools.pending_migrations.any?
    # raise "There is a pending migration. You can't generate a migration until the pending migration is committed."
  else
    migration_name_final = if @migration_name.present?
      @migration_name
    else
      action_names = migrations.map { |line| line['action_name'].camelize }.uniq.take(1).join
      model_names = migrations.map { |line| line['model_name'].camelize }.uniq.take(2).join
      column_names = migrations.map { |line| (line['column_name'].presence || "").camelize }.uniq.take(2).join

      "#{action_names}#{column_names}For#{model_names}"
    end

    ::Localtower::Tools.perform_migration(migration_name_final)
  end

  migrations.each do |action_line|
    next if action_line['action_name'].blank?

    # action_line['table_name'] = action_line['model_name'].pluralize.underscore

    proc_var = {
      'add_column' => -> { thor.migration_add_column(action_line) },
      'remove_column' => -> { thor.migration_remove_column(action_line) },
      'rename_column' => -> { thor.migration_rename_column(action_line) },
      'change_column_type' => -> { thor.migration_change_column_type(action_line) },
      'add_index_to_column' => -> { thor.migration_add_index_to_column(action_line) },
      'belongs_to' => -> { thor.migration_belongs_to(action_line) },
      'remove_index_to_column' => -> { thor.migration_remove_index_to_column(action_line) },
      'drop_table' => -> { thor.migration_drop_table(action_line) }
    }[action_line['action_name']]

    raise "No proc found for action_name #{action_line['action_name']}" unless proc_var

    proc_var.call
  end
end