renamed exaples to playground, edited README

2025-07-26 20:16:50 +05:30
parent d340db6dfd
commit f5350292fc
19 changed files with 135 additions and 61 deletions
--- a/playground/qry_select_test.go
+++ b/playground/qry_select_test.go
@@ -0,0 +1,90 @@
+package playground
+
+import (
+	"testing"
+
+	"code.patial.tech/go/pgm"
+	"code.patial.tech/go/pgm/playground/db"
+	"code.patial.tech/go/pgm/playground/db/branchuser"
+	"code.patial.tech/go/pgm/playground/db/employee"
+	"code.patial.tech/go/pgm/playground/db/user"
+	"code.patial.tech/go/pgm/playground/db/usersession"
+)
+
+func TestQryBuilder2(t *testing.T) {
+	got := db.User.Debug().Select(user.Email, user.FirstName).
+		Join(db.UserSession, user.ID, usersession.UserID).
+		Join(db.BranchUser, user.ID, branchuser.UserID).
+		Where(
+			user.ID.Eq(1),
+			pgm.Or(
+				user.StatusID.Eq(2),
+				user.UpdatedAt.Eq(3),
+			),
+			user.MfaKind.Eq(4),
+			pgm.Or(
+				user.FirstName.Eq(5),
+				user.MiddleName.Eq(6),
+			),
+		).
+		Where(
+			user.LastName.NEq(7),
+			user.Phone.Like("%123%"),
+			user.Email.NotInSubQuery(db.User.Select(user.ID).Where(user.ID.Eq(123))),
+		).
+		Limit(10).
+		Offset(100).
+		String()
+
+	expected := "SELECT users.email, users.first_name FROM users JOIN user_sessions ON users.id = user_sessions.user_id" +
+		" JOIN branch_users ON users.id = branch_users.user_id WHERE users.id = $1 AND (users.status_id = $2 OR users.updated_at = $3)" +
+		" AND users.mfa_kind = $4 AND (users.first_name = $5 OR users.middle_name = $6) AND users.last_name != $7 AND users.phone" +
+		" LIKE $8 AND users.email NOT IN(SELECT users.id FROM users WHERE users.id = $9) LIMIT 10 OFFSET 100"
+	if expected != got {
+		t.Errorf("\nexpected: %q\ngot: %q", expected, got)
+	}
+}
+
+func TestSelectWithHaving(t *testing.T) {
+	expected := "SELECT employees.department, AVG(employees.salary), COUNT(employees.id)" +
+		" FROM employees GROUP BY employees.department HAVING AVG(employees.salary) > $1 AND COUNT(employees.id) > $2"
+	got := db.Employee.
+		Select(employee.Department, employee.Salary.Avg(), employee.ID.Count()).
+		GroupBy(employee.Department).
+		Having(employee.Salary.Avg().Gt(50000), employee.ID.Count().Gt(5)).
+		String()
+
+	if expected != got {
+		t.Errorf("\nexpected: %q\ngot: %q", expected, got)
+	}
+}
+
+// BenchmarkSelect-12    	  668817	      1753 ns/op	    4442 B/op	      59 allocs/op
+// BenchmarkSelect-12    	  638901	      1860 ns/op	    4266 B/op	      61 allocs/op
+func BenchmarkSelect(b *testing.B) {
+	for b.Loop() {
+		_ = db.User.Select(user.Email, user.FirstName).
+			Join(db.UserSession, user.ID, usersession.UserID).
+			Join(db.BranchUser, user.ID, branchuser.UserID).
+			Where(
+				user.ID.Eq(1),
+				pgm.Or(
+					user.StatusID.Eq(2),
+					user.UpdatedAt.Eq(3),
+				),
+				user.MfaKind.Eq(4),
+				pgm.Or(
+					user.FirstName.Eq(5),
+					user.MiddleName.Eq(6),
+				),
+			).
+			Where(
+				user.LastName.NEq(7),
+				user.Phone.Like("%123%"),
+				user.Email.NotInSubQuery(db.User.Select(user.ID).Where(user.ID.Eq(123))),
+			).
+			Limit(10).
+			Offset(100).
+			String()
+	}
+}