more wrapper cleanup

gen/sqlc-wrapper/store.tmpl

@@ -0,0 +1,59 @@
+// Code generated by cmd/gen/sqlc-wrapper. DO NOT EDIT.
+package {{.PkgName}}
+
+import (
+	"context"
+	"database/sql"
+	"errors"
+
+	"{{.RepoPkg}}"
+)
+
+// Store wraps *Queries and implements repository.Store.
+type Store struct {
+	q *Queries
+}
+
+// NewStore wraps a *Queries to satisfy repository.Store.
+func NewStore(q *Queries) repository.Store {
+	return &Store{q: q}
+}
+
+var errorMap = map[error]error{
+	sql.ErrNoRows: repository.ErrNotFound,
+}
+
+func mapErr(err error) error {
+	for from, to := range errorMap {
+		if errors.Is(err, from) {
+			return to
+		}
+	}
+	return err
+}
+
+{{range .Methods}}{{.Signature}} {
+{{.Body}}}
+
+{{end}}
+
+{{- define "void"}}	return mapErr({{.Call}})
+{{end}}
+
+{{- define "scalar"}}	r, err := {{.Call}}
+	if err != nil {
+		return {{.RepoType}}{}, mapErr(err)
+	}
+	return {{.RepoType}}(r), nil
+{{end}}
+
+{{- define "slice"}}	rows, err := {{.Call}}
+	if err != nil {
+		return nil, mapErr(err)
+	}
+	out := make([]{{.RepoType}}, len(rows))
+	for i, row := range rows {
+		out[i] = {{.RepoType}}(row)
+	}
+	return out, nil
+{{end}}