Allow Locale backends to work with different Translator sources using AddTranslator method for Locale object. Fixes #22

locale.go

@@ -59,7 +59,7 @@ type Locale struct {
 }
 
 // NewLocale creates and initializes a new Locale object for a given language.
-// It receives a path for the i18n files directory (p) and a language code to use (l).
+// It receives a path for the i18n .po/.mo files directory (p) and a language code to use (l).
 func NewLocale(p, l string) *Locale {
 	return &Locale{
 		path:    p,
@@ -133,6 +133,21 @@ func (l *Locale) AddDomain(dom string) {
 	l.Unlock()
 }
 
+// AddTranslator takes a domain name and a Translator object to make it available in the Locale object.
+func (l *Locale) AddTranslator(dom string, tr Translator) {
+	l.Lock()
+
+	if l.Domains == nil {
+		l.Domains = make(map[string]Translator)
+	}
+	if l.defaultDomain == "" {
+		l.defaultDomain = dom
+	}
+	l.Domains[dom] = tr
+
+	l.Unlock()
+}
+
 // GetDomain is the domain getter for the package configuration
 func (l *Locale) GetDomain() string {
 	l.RLock()
@@ -141,8 +156,7 @@ func (l *Locale) GetDomain() string {
 	return dom
 }
 
-// SetDomain sets the name for the domain to be used at package level.
+// SetDomain sets the name for the domain to be used.
-// It reloads the corresponding Translation file.
 func (l *Locale) SetDomain(dom string) {
 	l.Lock()
 	l.defaultDomain = dom

locale_test.go

@@ -270,8 +270,6 @@ msgstr "More Translation"
 		t.Errorf("Expected 'Plural index' but got '%s'", tr)
 	}
 
-
-
 	// Create Locale with full language code
 	l = NewLocale("/tmp", "golem")
 
@@ -298,8 +296,6 @@ msgstr "More Translation"
 		t.Errorf("Expected 'Plural index' but got '%s'", tr)
 	}
 
-
-
 	// Create Locale with full language code
 	l = NewLocale("fixtures/", "fr_FR")
 
@@ -352,7 +348,6 @@ msgstr "More Translation"
 		t.Errorf("Expected 'Plural index' but got '%s'", tr)
 	}
 
-
 	// Create Locale with full language code
 	l = NewLocale("fixtures/", "de_AT")
 
@@ -425,7 +420,7 @@ msgstr[2] "And this is the second plural form: %s"
 		t.Fatalf("Can't write to test file: %s", err.Error())
 	}
 
-	// Create Locale with full language code
+	// Create Locale
 	l := NewLocale("/tmp", "es")
 
 	// Init sync channels
@@ -451,3 +446,28 @@ msgstr[2] "And this is the second plural form: %s"
 	<-ac
 	<-rc
 }
+
+func TestAddTranslator(t *testing.T) {
+	// Create po object
+	po := new(Po)
+
+	// Parse file
+	po.ParseFile("fixtures/en_US/default.po")
+
+	// Create Locale
+	l := NewLocale("", "en")
+
+	// Add PO Translator to Locale object
+	l.AddTranslator("default", po)
+
+	// Test translations
+	tr := l.Get("My text")
+	if tr != "Translated text" {
+		t.Errorf("Expected 'Translated text' but got '%s'", tr)
+	}
+	// Test translations
+	tr = l.Get("language")
+	if tr != "en_US" {
+		t.Errorf("Expected 'en_US' but got '%s'", tr)
+	}
+}