class Marten::DB::Field::Duration

Overview

A duration model field.

Duration fields are persisted as big integers (number of nanoseconds) in the underlying database. They are converted to Time::Span objects when the corresponding values are read from the database.

Defined in:

marten/db/field.cr
marten/db/field/duration.cr

Constructors

Instance Method Summary

Instance methods inherited from class Marten::DB::Field::Base

blank? : Bool blank?, db_column db_column, db_column! : ::String db_column!, db_column? db_column?, default default, empty_value?(value) : ::Bool empty_value?, from_db(value) from_db, from_db_result_set(result_set : ::DB::ResultSet) from_db_result_set, getter_value?(value) : ::Bool getter_value?, id : String id, index? : Bool index?, null? : Bool null?, prepare_save(record, new_record = false) prepare_save, primary_key? : Bool primary_key?, related_model related_model, relation? relation?, relation_name relation_name, to_column : Management::Column::Base | Nil to_column, to_db(value) : ::DB::Any to_db, truthy_value?(value) truthy_value?, unique? : Bool unique?, validate(record, value) validate

Constructor methods inherited from class Marten::DB::Field::Base

new(id : ::String, primary_key : ::Bool = false, blank : ::Bool = false, null : ::Bool = false, unique : ::Bool = false, index : ::Bool = false, db_column : ::String | Symbol | Nil = nil) new

Constructor Detail

def self.new(id : ::String, primary_key = false, default : Time::Span | Nil = nil, blank = false, null = false, unique = false, index = false, db_column = nil) #

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Instance Method Detail

def default : Time::Span? #
Description copied from class Marten::DB::Field::Base

Returns the default value of the field if any.


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def from_db(value) : Time::Span | Nil #
Description copied from class Marten::DB::Field::Base

Converts the raw DB value to the corresponding field value.


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def from_db_result_set(result_set : ::DB::ResultSet) : Time::Span | Nil #
Description copied from class Marten::DB::Field::Base

Extracts the field value from a DB result set and returns the right object corresponding to this value.


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def to_column : Management::Column::Base | Nil #
Description copied from class Marten::DB::Field::Base

Returns a migration column object corresponding to the field at hand.


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def to_db(value) : ::DB::Any #
Description copied from class Marten::DB::Field::Base

Converts the field value to the corresponding DB value.


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