我正在尝试使用Geo https://github.com/bryanjos/geo通过 Phoenix 模型变更集存储 Geo.Point 的库。我的参数是:{coordinates: [49.44, 17.87]}
或者更喜欢的是{coordinates: {latitude: 49.44, longitude: 17.87}}
在 iex 控制台中我尝试过:
iex(5)> changeset = Place.changeset(%Place{}, %{coordinates: [49.44, 17.87]})
%Ecto.Changeset{action: nil, changes: %{}, constraints: [],
errors: [coordinates: "is invalid"], filters: %{}
model: %Myapp.Place{__meta__: #Ecto.Schema.Metadata<:built>,
coordinates: nil, id: nil, inserted_at: nil, updated_at: nil}, optional: [],
opts: [], params: %{"coordinates" => [49.445614899999995, 17.875574099999998]},
repo: nil, required: [:coordinates],
所有其他尝试均因 Poison.Parser 错误而结束。
应该如何从客户端查看参数来创建有效的变更集?
Model:
defmodule MyApp.Place do
use MyApp.Web, :model
schema "place" do
field :coordinates, Geo.Point
timestamps
end
@required_fields ~w(coordinates)
@optional_fields ~w()
def changeset(model, params \\ :empty) do
model
|> cast(params, @required_fields, @optional_fields)
end
end