Improve json interpolation exception message

Author: josevalim

integration_test/pg/exceptions_test.exs

@@ -7,7 +7,7 @@ defmodule Ecto.Integration.ExceptionsTest do
 
   test "on bad JSON interpolation" do
     assert_raise Postgrex.Error,
-                 ~r/If you are trying to query a JSON field, the parameter must be interpolated/,
-                 fn -> TestRepo.all(from p in Post, where: p.meta["field"] == "example") end
+                 ~r/If you are trying to query a JSON field, the parameter may need to be interpolated/,
+                 fn -> TestRepo.all(from p in Post, where: p.meta["field"] != "example") end
   end
 end

lib/ecto/adapters/postgres/connection.ex

@@ -73,11 +73,11 @@ if Code.ensure_loaded?(Postgrex) do
           . If you are trying to query a JSON field, the parameter may need to be interpolated. \
           Instead of
 
-              p.json["field"] == "value"
+              p.json["field"] != "value"
 
           do
 
-              p.json["field"] == ^"value"
+              p.json["field"] != ^"value"
           """
 
           {:error, put_in(error.postgres.message, message <> context)}

mix.lock

@@ -6,7 +6,7 @@
   "decimal": {:hex, :decimal, "1.9.0", "83e8daf59631d632b171faabafb4a9f4242c514b0a06ba3df493951c08f64d07", [:mix], [], "hexpm", "b1f2343568eed6928f3e751cf2dffde95bfaa19dd95d09e8a9ea92ccfd6f7d85"},
   "deep_merge": {:hex, :deep_merge, "0.2.0", "c1050fa2edf4848b9f556fba1b75afc66608a4219659e3311d9c9427b5b680b3", [:mix], [], "hexpm", "e3bf435a54ed27b0ba3a01eb117ae017988804e136edcbe8a6a14c310daa966e"},
   "earmark_parser": {:hex, :earmark_parser, "1.4.19", "de0d033d5ff9fc396a24eadc2fcf2afa3d120841eb3f1004d138cbf9273210e8", [:mix], [], "hexpm", "527ab6630b5c75c3a3960b75844c314ec305c76d9899bb30f71cb85952a9dc45"},
-  "ecto": {:git, "https://github.com/elixir-ecto/ecto.git", "5b2abf83cb730d29c10a1bb3522226caadd6d1b6", []},
+  "ecto": {:git, "https://github.com/elixir-ecto/ecto.git", "2a6bc237af300cc8698dfe2121aa49dedc5ecd2a", []},
   "ex_doc": {:hex, :ex_doc, "0.27.3", "d09ed7ab590b71123959d9017f6715b54a448d76b43cf909eb0b2e5a78a977b2", [:mix], [{:earmark_parser, "~> 1.4.19", [hex: :earmark_parser, repo: "hexpm", optional: false]}, {:makeup_elixir, "~> 0.14", [hex: :makeup_elixir, repo: "hexpm", optional: false]}, {:makeup_erlang, "~> 0.1", [hex: :makeup_erlang, repo: "hexpm", optional: false]}], "hexpm", "ee60b329d08195039bfeb25231a208749be4f2274eae42ce38f9be0538a2f2e6"},
   "jason": {:hex, :jason, "1.3.0", "fa6b82a934feb176263ad2df0dbd91bf633d4a46ebfdffea0c8ae82953714946", [:mix], [{:decimal, "~> 1.0 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: true]}], "hexpm", "53fc1f51255390e0ec7e50f9cb41e751c260d065dcba2bf0d08dc51a4002c2ac"},
   "makeup": {:hex, :makeup, "1.0.5", "d5a830bc42c9800ce07dd97fa94669dfb93d3bf5fcf6ea7a0c67b2e0e4a7f26c", [:mix], [{:nimble_parsec, "~> 0.5 or ~> 1.0", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "cfa158c02d3f5c0c665d0af11512fed3fba0144cf1aadee0f2ce17747fba2ca9"},