experimental: build query functionality: now with one template with define-d sub-templates

storage/msgstore/msgstore.go

@@ -1,8 +1,6 @@
 package msgstore
 
 import (
-	"text/template"
-
 	lib "git.sr.ht/~cco/go-scopes"
 	"git.sr.ht/~cco/go-scopes/storage/sql"
 )
@@ -13,17 +11,6 @@ var Store = func(db *sql.Storage, msg lib.Message) {
 }
 
 func buildQuery(db *sql.Storage, qname, tname string) string {
-	t, ok := sql_templates[qname]
+	t := db.Sql.Lookup(qname)
-	if !ok {
-		t = db.ParseTemplate(sql_sources[qname])
-		sql_templates[qname] = t
-	}
 	return db.SetTable(t, tname)
 }
-
-var sql_templates = map[string]*template.Template{}
-
-var sql_sources = map[string]string{
-	"insert_msg": `insert into {{ .table }} (domain, action, class, item, payload)
-		values ($1, $2, $3, $4, $5)`,
-}

storage/sql/sql.go

@@ -17,6 +17,7 @@ type Cfg struct {
 type Storage struct {
 	*sql.DB
 	*Cfg
+	Sql    *template.Template
 	Errors []error
 }
 
@@ -36,9 +37,18 @@ func Open(cfg *Cfg) *Storage {
 		log.Error(err).Msg("sql.Open")
 		return nil
 	}
-	return &Storage{DB: db, Cfg: cfg}
+	storage := Storage{DB: db, Cfg: cfg}
+	storage.Sql = storage.ParseTemplate(SqlSources)
+	return &storage
 }
 
+const SqlSources = `
+{{- define "insert_msg" -}}
+	insert into {{ .table }} (domain, action, class, item, payload)
+		values ($1, $2, $3, $4, $5)
+{{- end }}
+`
+
 func QueryData[T scn[T]](db *Storage, q string, args ...interface{}) []T {
 	var data []T
 	var rec T