116 lines
4.7 KiB
Elixir
116 lines
4.7 KiB
Elixir
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defmodule Ecto.Integration.SubQueryTest do
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use Ecto.Integration.Case, async: Application.compile_env(:ecto, :async_integration_tests, true)
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alias Ecto.Integration.TestRepo
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import Ecto.Query
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alias Ecto.Integration.Post
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alias Ecto.Integration.Comment
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test "from: subqueries with select source" do
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TestRepo.insert!(%Post{title: "hello", public: true})
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query = from p in Post, select: p
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assert ["hello"] =
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TestRepo.all(from p in subquery(query), select: p.title)
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assert [post] =
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TestRepo.all(from p in subquery(query), select: p)
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assert %NaiveDateTime{} = post.inserted_at
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assert post.__meta__.state == :loaded
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end
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@tag :map_boolean_in_expression
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test "from: subqueries with map and select expression" do
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TestRepo.insert!(%Post{title: "hello", public: true})
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query = from p in Post, select: %{title: p.title, pub: not p.public}
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assert ["hello"] =
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TestRepo.all(from p in subquery(query), select: p.title)
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assert [%{title: "hello", pub: false}] =
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TestRepo.all(from p in subquery(query), select: p)
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assert [{"hello", %{title: "hello", pub: false}}] =
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TestRepo.all(from p in subquery(query), select: {p.title, p})
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assert [{%{title: "hello", pub: false}, false}] =
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TestRepo.all(from p in subquery(query), select: {p, p.pub})
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end
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@tag :map_boolean_in_expression
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test "from: subqueries with map update and select expression" do
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TestRepo.insert!(%Post{title: "hello", public: true})
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query = from p in Post, select: %{p | public: not p.public}
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assert ["hello"] =
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TestRepo.all(from p in subquery(query), select: p.title)
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assert [%Post{title: "hello", public: false}] =
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TestRepo.all(from p in subquery(query), select: p)
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assert [{"hello", %Post{title: "hello", public: false}}] =
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TestRepo.all(from p in subquery(query), select: {p.title, p})
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assert [{%Post{title: "hello", public: false}, false}] =
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TestRepo.all(from p in subquery(query), select: {p, p.public})
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end
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test "from: subqueries with map update on virtual field and select expression" do
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TestRepo.insert!(%Post{title: "hello"})
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query = from p in Post, select: %{p | temp: p.title}
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assert ["hello"] =
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TestRepo.all(from p in subquery(query), select: p.temp)
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assert [%Post{title: "hello", temp: "hello"}] =
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TestRepo.all(from p in subquery(query), select: p)
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end
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@tag :subquery_aggregates
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test "from: subqueries with aggregates" do
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TestRepo.insert!(%Post{visits: 10})
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TestRepo.insert!(%Post{visits: 11})
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TestRepo.insert!(%Post{visits: 13})
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query = from p in Post, select: [:visits], order_by: [asc: :visits]
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assert [13] = TestRepo.all(from p in subquery(query), select: max(p.visits))
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query = from p in Post, select: [:visits], order_by: [asc: :visits], limit: 2
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assert [11] = TestRepo.all(from p in subquery(query), select: max(p.visits))
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query = from p in Post, order_by: [asc: :visits]
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assert [13] = TestRepo.all(from p in subquery(query), select: max(p.visits))
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query = from p in Post, order_by: [asc: :visits], limit: 2
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assert [11] = TestRepo.all(from p in subquery(query), select: max(p.visits))
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end
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test "from: subqueries with parameters" do
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TestRepo.insert!(%Post{visits: 10, title: "hello"})
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TestRepo.insert!(%Post{visits: 11, title: "hello"})
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TestRepo.insert!(%Post{visits: 13, title: "world"})
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query = from p in Post, where: p.visits >= ^11 and p.visits <= ^13
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query = from p in subquery(query), where: p.title == ^"hello", select: fragment("? + ?", p.visits, ^1)
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assert [12] = TestRepo.all(query)
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end
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test "join: subqueries with select source" do
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%{id: id} = TestRepo.insert!(%Post{title: "hello", public: true})
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TestRepo.insert!(%Comment{post_id: id})
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query = from p in Post, select: p
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assert ["hello"] =
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TestRepo.all(from c in Comment, join: p in subquery(query), on: c.post_id == p.id, select: p.title)
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assert [%Post{inserted_at: %NaiveDateTime{}}] =
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TestRepo.all(from c in Comment, join: p in subquery(query), on: c.post_id == p.id, select: p)
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end
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test "join: subqueries with parameters" do
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TestRepo.insert!(%Post{visits: 10, title: "hello"})
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TestRepo.insert!(%Post{visits: 11, title: "hello"})
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TestRepo.insert!(%Post{visits: 13, title: "world"})
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TestRepo.insert!(%Comment{})
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TestRepo.insert!(%Comment{})
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query = from p in Post, where: p.visits >= ^11 and p.visits <= ^13
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query = from c in Comment,
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join: p in subquery(query),
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on: true,
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where: p.title == ^"hello",
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select: fragment("? + ?", p.visits, ^1)
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assert [12, 12] = TestRepo.all(query)
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end
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end
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