add links

lib/zoeyscomputer_web/live/link_live/form_component.ex

@@ -0,0 +1,82 @@
+defmodule ZoeyscomputerWeb.LinkLive.FormComponent do
+  use ZoeyscomputerWeb, :live_component
+
+  alias Zoeyscomputer.Links
+
+  @impl true
+  def render(assigns) do
+    ~H"""
+    <div>
+      <.header>
+        <%= @title %>
+        <:subtitle>Use this form to manage link records in your database.</:subtitle>
+      </.header>
+
+      <.simple_form
+        for={@form}
+        id="link-form"
+        phx-target={@myself}
+        phx-change="validate"
+        phx-submit="save"
+      >
+        <.input field={@form[:url]} type="text" label="Url" />
+        <:actions>
+          <.button phx-disable-with="Saving...">Save Link</.button>
+        </:actions>
+      </.simple_form>
+    </div>
+    """
+  end
+
+  @impl true
+  def update(%{link: link} = assigns, socket) do
+    {:ok,
+     socket
+     |> assign(assigns)
+     |> assign_new(:form, fn ->
+       to_form(Links.change_link(link))
+     end)}
+  end
+
+  @impl true
+  def handle_event("validate", %{"link" => link_params}, socket) do
+    changeset = Links.change_link(socket.assigns.link, link_params)
+    {:noreply, assign(socket, form: to_form(changeset, action: :validate))}
+  end
+
+  def handle_event("save", %{"link" => link_params}, socket) do
+    save_link(socket, socket.assigns.action, link_params)
+  end
+
+  defp save_link(socket, :edit, link_params) do
+    case Links.update_link(socket.assigns.link, link_params) do
+      {:ok, link} ->
+        notify_parent({:saved, link})
+
+        {:noreply,
+         socket
+         |> put_flash(:info, "Link updated successfully")
+         |> push_patch(to: socket.assigns.patch)}
+
+      {:error, %Ecto.Changeset{} = changeset} ->
+        {:noreply, assign(socket, form: to_form(changeset))}
+    end
+  end
+
+  defp save_link(socket, :new, link_params) do
+    case Links.create_link(link_params) do
+      {:ok, link} ->
+        notify_parent({:saved, link})
+
+        {:noreply,
+         socket
+         |> put_flash(:info, "Link created successfully")
+         |> push_patch(to: socket.assigns.patch)}
+
+      {:error, %Ecto.Changeset{} = changeset} ->
+        {:noreply, assign(socket, form: to_form(changeset))}
+    end
+  end
+
+  defp notify_parent(msg), do: send(self(), {__MODULE__, msg})
+end