查询中的模型源中不存在“where”中的字段“Struct”

Question

使用 has_many 和 belongs_to 时遇到问题，我有这两个模型：

  @primary_key {:guid, :integer, []}
  schema "characters" do
    field :name, :string
    field :race, :integer
    field :class, :integer
    field :gender, :integer
    field :level, :integer
    field :xp, :integer
    field :money, :integer
    field :online, :integer
    field :totaltime, :integer
    field :leveltime, :integer
    field :rest_bonus, :float
    field :is_logout_resting, :integer
    field :honor_highest_rank, :integer
    field :honor_standing, :integer
    field :stored_honor_rating, :float
    field :stored_dishonorable_kills, :integer
    field :stored_honorable_kills, :integer
    field :health, :integer
    field :power1, :integer
    field :power2, :integer
    field :power3, :integer
    field :power4, :integer
    field :power5, :integer
    belongs_to :account, Pugit.Account, references: :id
  end

以及此帐户模型

 schema "account" do
    field :username, :string
    field :sha_pass_hash, :string
    field :gmlevel, :integer, default: 0
    field :sessionkey, :string
    field :v, :string
    field :s, :string
    field :email, :string
    field :joindate, Ecto.DateTime
    field :last_ip, :string, default: "0.0.0.0"
    field :failed_logins, :integer, default: 0
    field :locked, :integer, default: 0
    field :last_login, Ecto.DateTime
    field :active_realm_id, :integer, default: 0
    field :expansion, :integer, default: 0
    field :mutetime, :integer, default: 0
    field :locale, :integer, default: 0

    has_many :characters, PugitWow.Character, foreign_key: :account
  end

我正在尝试运行这个查询：

Pugit.AccountRepo.all(Pugit.Account) |> Pugit.CharRepo.preload([:characters])

这里唯一的大区别是，也许我正在尝试从不同的存储库（其他数据库）预加载

但是我得到这个错误：

** (Ecto.QueryError) deps/ecto/lib/ecto/association.ex:320: field `Pugit.Character.account` in `where` does not exist in the model source in query:

from c in Pugit.Character,
  where: c.account in ^[1, 2, 3, 4, 21],
  order_by: [asc: c.account]

    (elixir) lib/enum.ex:1473: Enum."-reduce/3-lists^foldl/2-0-"/3
    (elixir) lib/enum.ex:1151: Enum."-map_reduce/3-lists^mapfoldl/2-0-"/3
      (ecto) lib/ecto/repo/queryable.ex:91: Ecto.Repo.Queryable.execute/5
      (ecto) lib/ecto/repo/queryable.ex:15: Ecto.Repo.Queryable.all/4
    (elixir) lib/enum.ex:1088: Enum."-map/2-lists^map/1-0-"/2

任何信息都将非常感谢

我的 characters table 的主键是 guid

我的 characters table 的外键是 account

我的 account table 的主键是 id

Answer 1

发生这种情况是因为您的 account 关联使用与外键字段相同的名称 account。将该字段重命名为 account_id，然后将其用作您的关联：

belongs_to :account, Pugit.Account

查询中的模型源中不存在“where”中的字段“Struct”

Field `Struct` in `where` does not exist in the model source in query

elixir

ecto