Grand test fixup (#138)

* start fixing up tests

* fix up tests + automate with drone

* fiddle with linting

* messing about with drone.yml

* some more fiddling

* hmmm

* add cache

* add vendor directory

* verbose

* ci updates

* update some little things

* update sig

vendor/github.com/go-pg/pg/extra/pgdebug/pgdebug.go

@@ -0,0 +1,42 @@
+package pgdebug
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/go-pg/pg/v10"
+)
+
+// DebugHook is a query hook that logs an error with a query if there are any.
+// It can be installed with:
+//
+//   db.AddQueryHook(pgext.DebugHook{})
+type DebugHook struct {
+	// Verbose causes hook to print all queries (even those without an error).
+	Verbose bool
+	EmptyLine bool
+}
+
+var _ pg.QueryHook = (*DebugHook)(nil)
+
+func (h DebugHook) BeforeQuery(ctx context.Context, evt *pg.QueryEvent) (context.Context, error) {
+	q, err := evt.FormattedQuery()
+	if err != nil {
+		return nil, err
+	}
+
+	if evt.Err != nil {
+		fmt.Printf("%s executing a query:\n%s\n", evt.Err, q)
+	} else if h.Verbose {
+		if h.EmptyLine {
+			fmt.Println()
+		}
+		fmt.Println(string(q))
+	}
+
+	return ctx, nil
+}
+
+func (DebugHook) AfterQuery(context.Context, *pg.QueryEvent) error {
+	return nil
+}