Ensure Ash is loaded in ash adapter

lib/backpex/adapters/ash.ex

@@ -1,112 +1,114 @@
-defmodule Backpex.Adapters.Ash do
-  @config_schema [
-    resource: [
-      doc: "The `Ash.Resource` that will be used to perform CRUD operations.",
-      type: :atom,
-      required: true
+if Code.ensure_loaded?(Ash) do
+  defmodule Backpex.Adapters.Ash do
+    @config_schema [
+      resource: [
+        doc: "The `Ash.Resource` that will be used to perform CRUD operations.",
+        type: :atom,
+        required: true
+      ]
     ]
-  ]
 
-  @moduledoc """
-  The `Backpex.Adapter` to connect your `Backpex.LiveResource` to an `Ash.Resource`.
-
-  ## `adapter_config`
-
-  #{NimbleOptions.docs(@config_schema)}
-
-  > ### Work in progress {: .error}
-  >
-  > The `Backpex.Adapters.Ash` is currently not usable! It can barely list and show items. We will work on this as we continue to implement  the `Backpex.Adapter` pattern throughout the codebase.
-  """
-
-  use Backpex.Adapter, config_schema: @config_schema
-  require Ash.Query
-
-  @doc """
-  Gets a database record with the given primary key value.
-
-  Returns `nil` if no result was found.
-  """
-  @impl Backpex.Adapter
-  def get(primary_value, _assigns, live_resource) do
-    config = live_resource.config(:adapter_config)
-    primary_key = live_resource.config(:primary_key)
-
-    config[:resource]
-    |> Ash.Query.filter(^Ash.Expr.ref(primary_key) == ^primary_value)
-    |> Ash.read_one()
-  end
-
-  @doc """
-  Gets a database record with the given primary key value.
-
-  Raises an error if no record was found.
-  """
-  @impl Backpex.Adapter
-  def get!(primary_value, _assigns, live_resource) do
-    config = live_resource.config(:adapter_config)
-    primary_key = live_resource.config(:primary_key)
-
-    config[:resource]
-    |> Ash.Query.filter(^Ash.Expr.ref(primary_key) == ^primary_value)
-    |> Ash.read_one!()
-  end
-
-  @doc """
-  Returns a list of items by given criteria.
-  """
-  @impl Backpex.Adapter
-  def list(_criteria \\ [], _fields, _assigns, config) do
-    config[:resource]
-    |> Ash.read!()
-  end
-
-  @doc """
-  Returns the number of items matching the given criteria.
-  """
-  @impl Backpex.Adapter
-  def count(_criteria \\ [], _fields, _assigns, config) do
-    config[:resource]
-    |> Ash.count!()
-  end
-
-  @doc """
-  Deletes multiple items.
-  """
-  @impl Backpex.Adapter
-  def delete_all(_items, _config) do
-    raise "not implemented yet"
-  end
-
-  @doc """
-  Inserts given item.
-  """
-  @impl Backpex.Adapter
-  def insert(_item, _config) do
-    raise "not implemented yet"
-  end
-
-  @doc """
-  Updates given item.
-  """
-  @impl Backpex.Adapter
-  def update(_item, _config) do
-    raise "not implemented yet"
-  end
-
-  @doc """
-  Updates given items.
-  """
-  @impl Backpex.Adapter
-  def update_all(_items, _updates, _config) do
-    raise "not implemented yet"
-  end
-
-  @doc """
-  Applies a change to a given item.
-  """
-  @impl Backpex.Adapter
-  def change(_item, _attrs, _fields, _assigns, _config, _opts) do
-    raise "not implemented yet"
+    @moduledoc """
+    The `Backpex.Adapter` to connect your `Backpex.LiveResource` to an `Ash.Resource`.
+
+    ## `adapter_config`
+
+    #{NimbleOptions.docs(@config_schema)}
+
+    > ### Work in progress {: .error}
+    >
+    > The `Backpex.Adapters.Ash` is currently not usable! It can barely list and show items. We will work on this as we continue to implement  the `Backpex.Adapter` pattern throughout the codebase.
+    """
+
+    use Backpex.Adapter, config_schema: @config_schema
+    require Ash.Query
+
+    @doc """
+    Gets a database record with the given primary key value.
+
+    Returns `nil` if no result was found.
+    """
+    @impl Backpex.Adapter
+    def get(primary_value, _assigns, live_resource) do
+      config = live_resource.config(:adapter_config)
+      primary_key = live_resource.config(:primary_key)
+
+      config[:resource]
+      |> Ash.Query.filter(^Ash.Expr.ref(primary_key) == ^primary_value)
+      |> Ash.read_one()
+    end
+
+    @doc """
+    Gets a database record with the given primary key value.
+
+    Raises an error if no record was found.
+    """
+    @impl Backpex.Adapter
+    def get!(primary_value, _assigns, live_resource) do
+      config = live_resource.config(:adapter_config)
+      primary_key = live_resource.config(:primary_key)
+
+      config[:resource]
+      |> Ash.Query.filter(^Ash.Expr.ref(primary_key) == ^primary_value)
+      |> Ash.read_one!()
+    end
+
+    @doc """
+    Returns a list of items by given criteria.
+    """
+    @impl Backpex.Adapter
+    def list(_criteria \\ [], _fields, _assigns, config) do
+      config[:resource]
+      |> Ash.read!()
+    end
+
+    @doc """
+    Returns the number of items matching the given criteria.
+    """
+    @impl Backpex.Adapter
+    def count(_criteria \\ [], _fields, _assigns, config) do
+      config[:resource]
+      |> Ash.count!()
+    end
+
+    @doc """
+    Deletes multiple items.
+    """
+    @impl Backpex.Adapter
+    def delete_all(_items, _config) do
+      raise "not implemented yet"
+    end
+
+    @doc """
+    Inserts given item.
+    """
+    @impl Backpex.Adapter
+    def insert(_item, _config) do
+      raise "not implemented yet"
+    end
+
+    @doc """
+    Updates given item.
+    """
+    @impl Backpex.Adapter
+    def update(_item, _config) do
+      raise "not implemented yet"
+    end
+
+    @doc """
+    Updates given items.
+    """
+    @impl Backpex.Adapter
+    def update_all(_items, _updates, _config) do
+      raise "not implemented yet"
+    end
+
+    @doc """
+    Applies a change to a given item.
+    """
+    @impl Backpex.Adapter
+    def change(_item, _attrs, _fields, _assigns, _config, _opts) do
+      raise "not implemented yet"
+    end
   end
 end