Class: TableSync::Receiving::Model::Sequel

Inherits:
Object
  • Object
show all
Defined in:
lib/table_sync/receiving/model/sequel.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(table_name) ⇒ Sequel

Returns a new instance of Sequel.



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# File 'lib/table_sync/receiving/model/sequel.rb', line 7

def initialize(table_name)
  @raw_model = Class.new(::Sequel::Model(table_name)).tap(&:unrestrict_primary_key)

  model_naming = ::TableSync::NamingResolver::Sequel.new(
    table_name: table_name,
    db: @raw_model.db,
  )

  @table = model_naming.table.to_sym
  @schema = model_naming.schema.to_sym
end

Instance Attribute Details

#schema ⇒ Object (readonly)

Returns the value of attribute schema.



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# File 'lib/table_sync/receiving/model/sequel.rb', line 5

def schema
  @schema
end

#table ⇒ Object (readonly)

Returns the value of attribute table.



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# File 'lib/table_sync/receiving/model/sequel.rb', line 5

def table
  @table
end

Instance Method Details

#after_commit(&block) ⇒ Object 



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# File 'lib/table_sync/receiving/model/sequel.rb', line 59

def after_commit(&block)
  db.after_commit(&block)
end

#columns ⇒ Object 



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# File 'lib/table_sync/receiving/model/sequel.rb', line 19

def columns
  dataset.columns
end

#destroy(data:, target_keys:, version_key:) ⇒ Object 



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# File 'lib/table_sync/receiving/model/sequel.rb', line 43

def destroy(data:, target_keys:, version_key:)
  sanitized_data = data.map { |attr| attr.select { |key, _value| target_keys.include?(key) } }
  sanitized_data = type_cast(sanitized_data)
  result = dataset.returning.where(::Sequel.|(*sanitized_data)).delete

  if result.size > data.size
    raise TableSync::DestroyError.new(data: data, target_keys: target_keys, result: result)
  end

  result
end

#primary_keys ⇒ Object 



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# File 'lib/table_sync/receiving/model/sequel.rb', line 23

def primary_keys
  [raw_model.primary_key].flatten
end

#transaction(&block) ⇒ Object 



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# File 'lib/table_sync/receiving/model/sequel.rb', line 55

def transaction(&block)
  db.transaction(&block)
end

#upsert(data:, target_keys:, version_key:, default_values:) ⇒ Object 



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# File 'lib/table_sync/receiving/model/sequel.rb', line 27

def upsert(data:, target_keys:, version_key:, default_values:)
  qualified_version = ::Sequel.qualify(raw_model.table_name, version_key)
  version_condition = ::Sequel.function(:coalesce, qualified_version, 0) <
                      ::Sequel.qualify(:excluded, version_key)

  upd_spec = update_spec(data.first.keys - target_keys)
  data.map! { |d| default_values.merge(d) }

  insert_data = type_cast(data)

  dataset
    .returning
    .insert_conflict(target: target_keys, update: upd_spec, update_where: version_condition)
    .multi_insert(insert_data)
end