|
# Migration |
|
defmodule Bookmarks.Repo.Migrations.CreateBookmark do |
|
use Ecto.Migration |
|
|
|
def change do |
|
create table(:bookmarks) do |
|
add :href, :string, null: false, size: 2000 |
|
add :title, :string |
|
add :description, :text |
|
add :tags, {:array, :string} |
|
timestamps |
|
end |
|
end |
|
end |
|
|
|
# models |
|
defmodule Bookmarks.Bookmark do |
|
use Bookmarks.Web, :model |
|
|
|
schema "bookmarks" do |
|
field :href, :string |
|
field :title, :string |
|
field :description, :string |
|
belongs_to :user, User |
|
embeds_many :tags, Bookmarks.Tag |
|
timestamps |
|
end |
|
|
|
@required_fields ~w(href) |
|
@optional_fields ~w(title description tags) |
|
|
|
def changeset(model, params \\ :empty) do |
|
model |
|
|> cast(params, @required_fields, @optional_fields) |
|
|> validate_length(:title, max: 255) |
|
|> validate_length(:description, max: 2000) |
|
|> validate_length(:href, min: 3) |
|
|> validate_length(:href, max: 2000) |
|
end |
|
end |
|
|
|
defmodule Bookmarks.Tag do |
|
use Bookmarks.Web, :model |
|
|
|
embedded_schema do |
|
field :name, :string |
|
end |
|
end |
|
|
|
# Failing test |
|
test "add one tag to a bookmark" do |
|
changeset = Bookmark.changeset(%Bookmark{}, %{href: "http://one.io", title: "title" }) |
|
|
|
changeset = Ecto.Changeset.put_change(changeset, :tags, [%Tag{name: "one"}]) |
|
bookmark = Repo.insert! changeset |
|
assert bookmark.tags == ["one"] |
|
end |
|
|
|
## Repo.insert fails with the following error: |
|
** (FunctionClauseError) no function clause matching in Postgrex.Extensions.Binary.encode/4 |
|
stacktrace: |
|
(postgrex) lib/postgrex/extensions/binary.ex:59: Postgrex.Extensions.Binary.encode(%Postgrex.TypeInfo{array_elem: 0, base_type: 0, comp_elems: [], input: "varcharin", oid: 1043, output: "varcharout", receive: "varcharrecv", send: "varcharsend", type: "varchar"}, %{id: "5e732b94-bdef-499e-91fc-07a7ec10a611", name: "one"}, 151599, {9, 4, 1}) |
|
(postgrex) lib/postgrex/extensions/binary.ex:288: anonymous fn/3 in Postgrex.Extensions.Binary.encode_array/4 |
|
(elixir) lib/enum.ex:1102: Enum."-map_reduce/3-lists^mapfoldl/2-0-"/3 |
|
(postgrex) lib/postgrex/extensions/binary.ex:284: Postgrex.Extensions.Binary.encode_array/4 |
|
(postgrex) lib/postgrex/extensions/binary.ex:256: Postgrex.Extensions.Binary.encode_array/3 |
|
(postgrex) lib/postgrex/protocol.ex:299: anonymous fn/2 in Postgrex.Protocol.encode_params/1 |
|
(elixir) lib/enum.ex:1043: anonymous fn/3 in Enum.map/2 |
|
(elixir) lib/enum.ex:1387: Enum."-reduce/3-lists^foldl/2-0-"/3 |
|
(elixir) lib/enum.ex:1043: Enum.map/2 |
|
(postgrex) lib/postgrex/protocol.ex:294: Postgrex.Protocol.encode_params/1 |
|
(postgrex) lib/postgrex/protocol.ex:264: Postgrex.Protocol.send_params/2 |
|
(postgrex) lib/postgrex/protocol.ex:136: Postgrex.Protocol.message/3 |
|
(postgrex) lib/postgrex/connection.ex:417: Postgrex.Connection.new_data/2 |
|
(postgrex) lib/postgrex/connection.ex:292: Postgrex.Connection.handle_info/2 |
|
(stdlib) gen_server.erl:615: :gen_server.try_dispatch/4 |
|
(stdlib) gen_server.erl:681: :gen_server.handle_msg/5 |
|
(stdlib) proc_lib.erl:240: :proc_lib.init_p_do_apply/3 |
|
|
