Are there examples how to use mods with generated code?

[isgj]

Hello, I am trying to use the generated code but I cannot make it work with an or check. Consider this code

userMod := models.SelectWhere.Users
cs, err := models.Users(ctx, c,
	sm.Where(
		psql.Or(userMod.ID.EQ(users[0].ID),
			userMod.Email.EQ("[email protected]"),
		),
	),
).All()

it generates the following query

SELECT 
"users"."id" AS "id", ....other columns
FROM "users" AS "users"
WHERE ([("users"."id" = $1)] OR [("users"."email" = $1)])

note the extra [ and ]

[stephenafamo]

This definitely looks like a bug. I'll investigate

[stephenafamo]

• SelectWhere contains mods which are supposed to be passed directly to the query builder.
• psql.Or takes expressions

Your query should be built like this instead:

_, err := models.Users(ctx, db,
	sm.Where(psql.Or(
		models.UserColumns.ID.EQ(psql.Arg(users[0].ID)),
		models.UserColumns.Email.EQ(psql.Arg("[email protected]")),
	)),
).All()

Which provides the expected query

SELECT
"users"."id" AS "id", ....other columns
FROM "users" AS "users"
WHERE (("users"."id" = $1) OR ("users"."primary_email" = $2))

[isgj]

Thanks, it worked.

I tried models.UserColumns.ID.EQ(users[0].ID) (without psql.Arg) and that didn't quote the argument. Any reason why .EQ (and the others) accept any and not an expression?

[stephenafamo]

I initially assumed that forcing an expression would make simple queries quite tedious to write.

However, it appears that is not the case. In almost all scenarios, the user would want to either use an Arg, a quote or a string literal, all of which are expressions.

This comment actually led to a huge refactor (since everything is quite connected) and now in v0.18.0, EQ and others now require an Expression. Thank you 🙏🏾 .

[isgj]

Hehe, thank you. It's a nice library.