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[](https://github.com/ash-project/ash_money) [ash\_money](https://github.com/ash-project/ash_money) v0.1.15 - GUIDES - Modules - Mix Tasks <!--THE END--> <!--THE END--> <!--THE END--> Search documentation of ash\_money Settings # [View Source](https://github.com/ash-project/ash_money "View Source") API Reference ash\_money v0.1.15 ## [](api-reference.html#modules)Modules [AshMoney](AshMoney.html) [`AshMoney`](AshMoney.html#content) provides a type for working with money in your Ash resources. [AshMoney.AshPostgresExtension](AshMoney.AshPostgresExtension.html) Installs the `money_with_currency` type and operators/functions for Postgres. [AshMoney.Types.Money](AshMoney.Types.Money.html) A money type for Ash that uses the `ex_money` library. [Comparable.Type.Decimal.To.Money](Comparable.Type.Decimal.To.Money.html) [Comparable.Type.Float.To.Money](Comparable.Type.Float.To.Money.html) [Comparable.Type.Integer.To.Money](Comparable.Type.Integer.To.Money.html) [Comparable.Type.Money.To.Decimal](Comparable.Type.Money.To.Decimal.html) [Comparable.Type.Money.To.Float](Comparable.Type.Money.To.Float.html) [Comparable.Type.Money.To.Integer](Comparable.Type.Money.To.Integer.html) [Comparable.Type.Money.To.Money](Comparable.Type.Money.To.Money.html) ## [](api-reference.html#mix-tasks)Mix Tasks [mix ash\_money.add\_to\_ash\_postgres](Mix.Tasks.AshMoney.AddToAshPostgres.html) Adds AshMoney.AshPostgresExtension to installed\_extensions and installs :ex\_money\_sql. [mix ash\_money.install](Mix.Tasks.AshMoney.Install.html) Installs AshMoney. Should be run with `mix igniter.install ash_money` [Next Page → Home](readme.html) [Hex Package](https://hex.pm/packages/ash_money/0.1.15) [Hex Preview](https://preview.hex.pm/preview/ash_money/0.1.15) Search HexDocs [Download ePub version](ash_money.epub "ePub version") Built using [ExDoc](https://github.com/elixir-lang/ex_doc "ExDoc") (v0.31.2) for the [Elixir programming language](https://elixir-lang.org "Elixir") [](https://github.com/ash-project/ash_money) [ash\_money](https://github.com/ash-project/ash_money) v0.1.15 - GUIDES - Modules - Mix Tasks <!--THE END--> <!--THE END--> <!--THE END--> Search documentation of ash\_money Settings # [View Source](https://github.com/ash-project/ash_money/blob/v0.1.15/lib/ash_money/ash_postgres_extension.ex#L2 "View Source") AshMoney.AshPostgresExtension (ash\_money v0.1.15) Installs the `money_with_currency` type and operators/functions for Postgres. # [](AshMoney.AshPostgresExtension.html#summary)Summary ## [Functions](AshMoney.AshPostgresExtension.html#functions) [extension()](AshMoney.AshPostgresExtension.html#extension/0) [install(int)](AshMoney.AshPostgresExtension.html#install/1) Callback implementation for [`AshPostgres.CustomExtension.install/1`](../ash_postgres/2.4.18/AshPostgres.CustomExtension.html#c:install/1). [uninstall(v)](AshMoney.AshPostgresExtension.html#uninstall/1) Callback implementation for [`AshPostgres.CustomExtension.uninstall/1`](../ash_postgres/2.4.18/AshPostgres.CustomExtension.html#c:uninstall/1). # [](AshMoney.AshPostgresExtension.html#functions)Functions [Link to this function](AshMoney.AshPostgresExtension.html#extension/0 "Link to this function") # extension() [View Source](https://github.com/ash-project/ash_money/blob/v0.1.15/lib/ash_money/ash_postgres_extension.ex#L6 "View Source") [Link to this function](AshMoney.AshPostgresExtension.html#install/1 "Link to this function") # install(int) [View Source](https://github.com/ash-project/ash_money/blob/v0.1.15/lib/ash_money/ash_postgres_extension.ex#L8 "View Source") Callback implementation for [`AshPostgres.CustomExtension.install/1`](../ash_postgres/2.4.18/AshPostgres.CustomExtension.html#c:install/1). [Link to this function](AshMoney.AshPostgresExtension.html#uninstall/1 "Link to this function") # uninstall(v) [View Source](https://github.com/ash-project/ash_money/blob/v0.1.15/lib/ash_money/ash_postgres_extension.ex#L56 "View Source") Callback implementation for [`AshPostgres.CustomExtension.uninstall/1`](../ash_postgres/2.4.18/AshPostgres.CustomExtension.html#c:uninstall/1). [Hex Package](https://hex.pm/packages/ash_money/0.1.15) [Hex Preview](https://preview.hex.pm/preview/ash_money/0.1.15) Search HexDocs [Download ePub version](ash_money.epub "ePub version") Built using [ExDoc](https://github.com/elixir-lang/ex_doc "ExDoc") (v0.31.2) for the [Elixir programming language](https://elixir-lang.org "Elixir") [](https://github.com/ash-project/ash_money) [ash\_money](https://github.com/ash-project/ash_money) v0.1.15 - GUIDES - Modules - Mix Tasks <!--THE END--> <!--THE END--> <!--THE END--> Search documentation of ash\_money Settings # [View Source](https://github.com/ash-project/ash_money/blob/v0.1.15/lib/ash_money.ex#L1 "View Source") AshMoney (ash\_money v0.1.15) [`AshMoney`](AshMoney.html#content) provides a type for working with money in your Ash resources. It also provides an `AshPostgres.Extension` that can be used to add support for money types and operators to your Postgres database. [Hex Package](https://hex.pm/packages/ash_money/0.1.15) [Hex Preview](https://preview.hex.pm/preview/ash_money/0.1.15) Search HexDocs [Download ePub version](ash_money.epub "ePub version") Built using [ExDoc](https://github.com/elixir-lang/ex_doc "ExDoc") (v0.31.2) for the [Elixir programming language](https://elixir-lang.org "Elixir") [](https://github.com/ash-project/ash_money) [ash\_money](https://github.com/ash-project/ash_money) v0.1.15 - GUIDES - Modules - Mix Tasks <!--THE END--> <!--THE END--> <!--THE END--> Search documentation of ash\_money Settings # [View Source](https://github.com/ash-project/ash_money/blob/v0.1.15/lib/ash_money/types/money.ex#L1 "View Source") AshMoney.Types.Money (ash\_money v0.1.15) A money type for Ash that uses the `ex_money` library. When constructing a composite type, use a tuple in the following structure: `composite_type(%{currency: "USD", amount: Decimal.new("0")}}, AshMoney.Types.Money)` If you've added a custom type, like `:money`: ``` composite_type(%{currency: "USD", amount: Decimal.new("0")}}, :money) ``` # [](AshMoney.Types.Money.html#summary)Summary ## [Functions](AshMoney.Types.Money.html#functions) [handle\_change?()](AshMoney.Types.Money.html#handle_change?/0) [prepare\_change?()](AshMoney.Types.Money.html#prepare_change?/0) # [](AshMoney.Types.Money.html#functions)Functions [Link to this function](AshMoney.Types.Money.html#handle_change?/0 "Link to this function") # handle\_change?() [View Source](https://github.com/ash-project/ash_money/blob/v0.1.15/lib/ash_money/types/money.ex#L1 "View Source") [Link to this function](AshMoney.Types.Money.html#prepare_change?/0 "Link to this function") # prepare\_change?() [View Source](https://github.com/ash-project/ash_money/blob/v0.1.15/lib/ash_money/types/money.ex#L1 "View Source") [Hex Package](https://hex.pm/packages/ash_money/0.1.15) [Hex Preview](https://preview.hex.pm/preview/ash_money/0.1.15) Search HexDocs [Download ePub version](ash_money.epub "ePub version") Built using [ExDoc](https://github.com/elixir-lang/ex_doc "ExDoc") (v0.31.2) for the [Elixir programming language](https://elixir-lang.org "Elixir") [](https://github.com/ash-project/ash_money) [ash\_money](https://github.com/ash-project/ash_money) v0.1.15 - GUIDES - Modules - Mix Tasks <!--THE END--> <!--THE END--> <!--THE END--> Search documentation of ash\_money Settings # [View Source](https://github.com/ash-project/ash_money/blob/v0.1.15/lib/ash_money/comp.ex#L11 "View Source") Comparable.Type.Decimal.To.Money (ash\_money v0.1.15) [Hex Package](https://hex.pm/packages/ash_money/0.1.15) [Hex Preview](https://preview.hex.pm/preview/ash_money/0.1.15) Search HexDocs [Download ePub version](ash_money.epub "ePub version") Built using [ExDoc](https://github.com/elixir-lang/ex_doc "ExDoc") (v0.31.2) for the [Elixir programming language](https://elixir-lang.org "Elixir") [](https://github.com/ash-project/ash_money) [ash\_money](https://github.com/ash-project/ash_money) v0.1.15 - GUIDES - Modules - Mix Tasks <!--THE END--> <!--THE END--> <!--THE END--> Search documentation of ash\_money Settings # [View Source](https://github.com/ash-project/ash_money/blob/v0.1.15/lib/ash_money/comp.ex#L15 "View Source") Comparable.Type.Float.To.Money (ash\_money v0.1.15) [Hex Package](https://hex.pm/packages/ash_money/0.1.15) [Hex Preview](https://preview.hex.pm/preview/ash_money/0.1.15) Search HexDocs [Download ePub version](ash_money.epub "ePub version") Built using [ExDoc](https://github.com/elixir-lang/ex_doc "ExDoc") (v0.31.2) for the [Elixir programming language](https://elixir-lang.org "Elixir") [](https://github.com/ash-project/ash_money) [ash\_money](https://github.com/ash-project/ash_money) v0.1.15 - GUIDES - Modules - Mix Tasks <!--THE END--> <!--THE END--> <!--THE END--> Search documentation of ash\_money Settings # [View Source](https://github.com/ash-project/ash_money/blob/v0.1.15/lib/ash_money/comp.ex#L3 "View Source") Comparable.Type.Integer.To.Money (ash\_money v0.1.15) [Hex Package](https://hex.pm/packages/ash_money/0.1.15) [Hex Preview](https://preview.hex.pm/preview/ash_money/0.1.15) Search HexDocs [Download ePub version](ash_money.epub "ePub version") Built using [ExDoc](https://github.com/elixir-lang/ex_doc "ExDoc") (v0.31.2) for the [Elixir programming language](https://elixir-lang.org "Elixir") [](https://github.com/ash-project/ash_money) [ash\_money](https://github.com/ash-project/ash_money) v0.1.15 - GUIDES - Modules - Mix Tasks <!--THE END--> <!--THE END--> <!--THE END--> Search documentation of ash\_money Settings # [View Source](https://github.com/ash-project/ash_money/blob/v0.1.15/lib/ash_money/comp.ex#L11 "View Source") Comparable.Type.Money.To.Decimal (ash\_money v0.1.15) [Hex Package](https://hex.pm/packages/ash_money/0.1.15) [Hex Preview](https://preview.hex.pm/preview/ash_money/0.1.15) Search HexDocs [Download ePub version](ash_money.epub "ePub version") Built using [ExDoc](https://github.com/elixir-lang/ex_doc "ExDoc") (v0.31.2) for the [Elixir programming language](https://elixir-lang.org "Elixir") [](https://github.com/ash-project/ash_money) [ash\_money](https://github.com/ash-project/ash_money) v0.1.15 - GUIDES - Modules - Mix Tasks <!--THE END--> <!--THE END--> <!--THE END--> Search documentation of ash\_money Settings # [View Source](https://github.com/ash-project/ash_money/blob/v0.1.15/lib/ash_money/comp.ex#L15 "View Source") Comparable.Type.Money.To.Float (ash\_money v0.1.15) [Hex Package](https://hex.pm/packages/ash_money/0.1.15) [Hex Preview](https://preview.hex.pm/preview/ash_money/0.1.15) Search HexDocs [Download ePub version](ash_money.epub "ePub version") Built using [ExDoc](https://github.com/elixir-lang/ex_doc "ExDoc") (v0.31.2) for the [Elixir programming language](https://elixir-lang.org "Elixir") [](https://github.com/ash-project/ash_money) [ash\_money](https://github.com/ash-project/ash_money) v0.1.15 - GUIDES - Modules - Mix Tasks <!--THE END--> <!--THE END--> <!--THE END--> Search documentation of ash\_money Settings # [View Source](https://github.com/ash-project/ash_money/blob/v0.1.15/lib/ash_money/comp.ex#L3 "View Source") Comparable.Type.Money.To.Integer (ash\_money v0.1.15) [Hex Package](https://hex.pm/packages/ash_money/0.1.15) [Hex Preview](https://preview.hex.pm/preview/ash_money/0.1.15) Search HexDocs [Download ePub version](ash_money.epub "ePub version") Built using [ExDoc](https://github.com/elixir-lang/ex_doc "ExDoc") (v0.31.2) for the [Elixir programming language](https://elixir-lang.org "Elixir") [](https://github.com/ash-project/ash_money) [ash\_money](https://github.com/ash-project/ash_money) v0.1.15 - GUIDES - Modules - Mix Tasks <!--THE END--> <!--THE END--> <!--THE END--> Search documentation of ash\_money Settings # [View Source](https://github.com/ash-project/ash_money/blob/v0.1.15/lib/ash_money/comp.ex#L7 "View Source") Comparable.Type.Money.To.Money (ash\_money v0.1.15) [Hex Package](https://hex.pm/packages/ash_money/0.1.15) [Hex Preview](https://preview.hex.pm/preview/ash_money/0.1.15) Search HexDocs [Download ePub version](ash_money.epub "ePub version") Built using [ExDoc](https://github.com/elixir-lang/ex_doc "ExDoc") (v0.31.2) for the [Elixir programming language](https://elixir-lang.org "Elixir") [](https://github.com/ash-project/ash_money) [ash\_money](https://github.com/ash-project/ash_money) v0.1.15 - GUIDES - Modules - Mix Tasks <!--THE END--> <!--THE END--> <!--THE END--> Search documentation of ash\_money Settings # [View Source](https://github.com/ash-project/ash_money/blob/v0.1.15/documentation/tutorials/getting-started-with-ash-money.md#L1 "View Source") Getting Started With AshMoney ## [](getting-started-with-ash-money.html#bring-in-the-ash_money-dependency)Bring in the ash\_money dependency ``` def deps() [ ... {:ash_money, "~> 0.1.15"} ] end ``` ## [](getting-started-with-ash-money.html#setup)Setup ### [](getting-started-with-ash-money.html#using-igniter-recommended)Using Igniter (recommended) ``` mix igniter.install ash_money ``` ### [](getting-started-with-ash-money.html#manual)Manual The primary thing that AshMoney provides is [`AshMoney.Types.Money`](AshMoney.Types.Money.html). This is backed by `ex_money`. You can use it out of the box like so: ``` attribute :balance, AshMoney.Types.Money ``` ## [](getting-started-with-ash-money.html#add-to-known-types)Add to known types To support money operations in runtime expressions, which use [`Ash`](../ash/3.4.48/Ash.html)'s operator overloading feature, we have to tell Ash about the `Ash.Type.Money` using the `known_type` configuration. ``` config :ash, :known_types, [AshMoney.Types.Money] ``` ## [](getting-started-with-ash-money.html#referencing-with-money)Referencing with `:money` You can add it to your compile time list of types for easier reference: ``` config :ash, :custom_types, money: AshMoney.Types.Money ``` Then compile ash again, `mix deps.compile ash --force`, and refer to it like so: ``` attribute :balance, :money ``` ## [](getting-started-with-ash-money.html#adding-ashpostgres-support)Adding AshPostgres Support First, add the `:ex_money_sql` dependency to your `mix.exs` file. Then add [`AshMoney.AshPostgresExtension`](AshMoney.AshPostgresExtension.html) to your list of `installed_extensions` in your repo, and generate migrations. ``` defmodule YourRepo do def installed_extensions do [..., AshMoney.AshPostgresExtension] end end ``` ## [](getting-started-with-ash-money.html#ashpostgres-support)AshPostgres Support Thanks to `ex_money_sql`, there are excellent tools for lowering support for money into your postgres database. This allows for things like aggregates that sum amounts, and referencing money in expressions: ``` sum :sum_of_usd_balances, :accounts, :balance do filter expr(balance[:currency_code] == "USD") end ``` ## [](getting-started-with-ash-money.html#ashgraphql-support)AshGraphql Support Add the following to your schema file: ``` object :money do field(:amount, non_null(:decimal)) field(:currency, non_null(:string)) end input_object :money_input do field(:amount, non_null(:decimal)) field(:currency, non_null(:string)) end ``` [← Previous Page Home](readme.html) [Next Page → Change Log](changelog.html) [Hex Package](https://hex.pm/packages/ash_money/0.1.15) [Hex Preview](https://preview.hex.pm/preview/ash_money/0.1.15) ([current file](https://preview.hex.pm/preview/ash_money/0.1.15/show/documentation/tutorials/getting-started-with-ash-money.md)) Search HexDocs [Download ePub version](ash_money.epub "ePub version") Built using [ExDoc](https://github.com/elixir-lang/ex_doc "ExDoc") (v0.31.2) for the [Elixir programming language](https://elixir-lang.org "Elixir") [](https://github.com/ash-project/ash_money) [ash\_money](https://github.com/ash-project/ash_money) v0.1.15 - GUIDES - Modules - Mix Tasks <!--THE END--> <!--THE END--> <!--THE END--> Search documentation of ash\_money Settings # [View Source](https://github.com/ash-project/ash_money/blob/v0.1.15/lib/mix/tasks/ash_money.add_to_ash_postgres.ex#L2 "View Source") mix ash\_money.add\_to\_ash\_postgres (ash\_money v0.1.15) Adds AshMoney.AshPostgresExtension to installed\_extensions and installs :ex\_money\_sql. This is called automatically by `mix igniter.install ash_money` if [`AshPostgres`](../ash_postgres/2.4.18/AshPostgres.html) is installed at the time. This task is useful if you install `ash_postgres` *after* installing `ash_money`. [Hex Package](https://hex.pm/packages/ash_money/0.1.15) [Hex Preview](https://preview.hex.pm/preview/ash_money/0.1.15) Search HexDocs [Download ePub version](ash_money.epub "ePub version") Built using [ExDoc](https://github.com/elixir-lang/ex_doc "ExDoc") (v0.31.2) for the [Elixir programming language](https://elixir-lang.org "Elixir") [](https://github.com/ash-project/ash_money) [ash\_money](https://github.com/ash-project/ash_money) v0.1.15 - GUIDES - Modules - Mix Tasks <!--THE END--> <!--THE END--> <!--THE END--> Search documentation of ash\_money Settings # [View Source](https://github.com/ash-project/ash_money/blob/v0.1.15/lib/mix/tasks/ash_money.install.ex#L2 "View Source") mix ash\_money.install (ash\_money v0.1.15) Installs AshMoney. Should be run with `mix igniter.install ash_money` # [](Mix.Tasks.AshMoney.Install.html#summary)Summary ## [Functions](Mix.Tasks.AshMoney.Install.html#functions) [igniter(igniter, argv)](Mix.Tasks.AshMoney.Install.html#igniter/2) Callback implementation for [`Igniter.Mix.Task.igniter/2`](../igniter/0.5.0/Igniter.Mix.Task.html#c:igniter/2). # [](Mix.Tasks.AshMoney.Install.html#functions)Functions [Link to this function](Mix.Tasks.AshMoney.Install.html#igniter/2 "Link to this function") # igniter(igniter, argv) [View Source](https://github.com/ash-project/ash_money/blob/v0.1.15/lib/mix/tasks/ash_money.install.ex#L8 "View Source") Callback implementation for [`Igniter.Mix.Task.igniter/2`](../igniter/0.5.0/Igniter.Mix.Task.html#c:igniter/2). [Hex Package](https://hex.pm/packages/ash_money/0.1.15) [Hex Preview](https://preview.hex.pm/preview/ash_money/0.1.15) Search HexDocs [Download ePub version](ash_money.epub "ePub version") Built using [ExDoc](https://github.com/elixir-lang/ex_doc "ExDoc") (v0.31.2) for the [Elixir programming language](https://elixir-lang.org "Elixir") [](https://github.com/ash-project/ash_money) [ash\_money](https://github.com/ash-project/ash_money) v0.1.15 - GUIDES - Modules - Mix Tasks <!--THE END--> <!--THE END--> <!--THE END--> Search documentation of ash\_money Settings # [View Source](https://github.com/ash-project/ash_money/blob/v0.1.15/README.md#L1 "View Source") Home    [](https://opensource.org/licenses/MIT) [](https://hex.pm/packages/ash_money) [](../ash_money.html) # AshMoney Welcome! This is the extension for working with money types in [Ash](../ash.html). This is a thin wrapper around the very excellent [ex\_money](../ex_money.html). It provides: - An [`Ash.Type`](../ash/3.4.48/Ash.Type.html) for representing [`Money`](../ex_money/5.18.0/Money.html) - An `AshPostgres.Extension` for supporting common money operations directly in the database - An implementation of [`Comp`](../ash/3.4.48/Comp.html) for `%Money{}`, allowing Ash to compare them. ## [](readme.html#tutorials)Tutorials - [Getting Started with AshMoney](getting-started-with-ash-money.html) [← Previous Page API Reference](api-reference.html) [Next Page → Getting Started With AshMoney](getting-started-with-ash-money.html) [Hex Package](https://hex.pm/packages/ash_money/0.1.15) [Hex Preview](https://preview.hex.pm/preview/ash_money/0.1.15) ([current file](https://preview.hex.pm/preview/ash_money/0.1.15/show/README.md)) Search HexDocs [Download ePub version](ash_money.epub "ePub version") Built using [ExDoc](https://github.com/elixir-lang/ex_doc "ExDoc") (v0.31.2) for the [Elixir programming language](https://elixir-lang.org "Elixir")