WIP html forms

domain/model/image_entry.go

@@ -10,7 +10,7 @@ type ImageEntry struct {
 }
 
 type ImageEntryMetaData struct {
-	ImagePath string `owl:"type=upload"`
+	ImagePath string `owl:"inputType=file"`
 }
 
 func (e *ImageEntry) ID() string {

web/editor/entity_form_test.go

@@ -0,0 +1,77 @@
+package editor_test
+
+import (
+	"owl-blogs/domain/model"
+	"owl-blogs/web/editor"
+	"reflect"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/require"
+)
+
+type MockEntryMetaData struct {
+	Image   string `owl:"inputType=file"`
+	Content string `owl:"inputType=text"`
+}
+
+type MockEntry struct {
+	id          string
+	content     model.EntryContent
+	publishedAt *time.Time
+	metaData    *MockEntryMetaData
+}
+
+func (e *MockEntry) ID() string {
+	return e.id
+}
+
+func (e *MockEntry) Content() model.EntryContent {
+	return e.content
+}
+
+func (e *MockEntry) PublishedAt() *time.Time {
+	return e.publishedAt
+}
+
+func (e *MockEntry) MetaData() interface{} {
+	return e.metaData
+}
+
+func (e *MockEntry) Create(id string, content string, publishedAt *time.Time, metaData model.EntryMetaData) error {
+	e.id = id
+	e.content = model.EntryContent(content)
+	e.publishedAt = publishedAt
+	e.metaData = metaData.(*MockEntryMetaData)
+	return nil
+}
+
+func TestFieldToFormField(t *testing.T) {
+	field := reflect.TypeOf(&MockEntryMetaData{}).Elem().Field(0)
+	formField, err := editor.FieldToFormField(field)
+	require.NoError(t, err)
+	require.Equal(t, "Image", formField.Name)
+	require.Equal(t, "file", formField.Params.InputType)
+}
+
+func TestStructToFields(t *testing.T) {
+	fields, err := editor.StructToFormFields(&MockEntryMetaData{})
+	require.NoError(t, err)
+	require.Len(t, fields, 2)
+	require.Equal(t, "Image", fields[0].Name)
+	require.Equal(t, "file", fields[0].Params.InputType)
+	require.Equal(t, "Content", fields[1].Name)
+	require.Equal(t, "text", fields[1].Params.InputType)
+}
+
+func TestEditorEntryForm_HtmlForm(t *testing.T) {
+	formService := editor.NewEditorFormService(&MockEntry{})
+	form, err := formService.HtmlForm()
+	require.NoError(t, err)
+	require.Contains(t, form, "<form")
+	require.Contains(t, form, "method=\"POST\"")
+	require.Contains(t, form, "<input type=\"file\" name=\"Image\" />")
+	require.Contains(t, form, "<input type=\"text\" name=\"Content\" />")
+	require.Contains(t, form, "<input type=\"submit\" value=\"Submit\" />")
+
+}

web/editor/entry_form.go

@@ -11,9 +11,13 @@ type EditorEntryForm struct {
 	entry model.Entry
 }
 
+type EntryFormFieldParams struct {
+	InputType string
+}
+
 type EntryFormField struct {
 	Name   string
-	Params map[string]string
+	Params EntryFormFieldParams
 }
 
 func NewEditorFormService(entry model.Entry) *EditorEntryForm {
@@ -22,28 +26,66 @@ func NewEditorFormService(entry model.Entry) *EditorEntryForm {
 	}
 }
 
-func (s *EditorEntryForm) HtmlForm() string {
-	meta := s.entry.MetaData()
+func (s *EntryFormFieldParams) ApplyTag(tagKey string, tagValue string) error {
+	switch tagKey {
+	case "inputType":
+		s.InputType = tagValue
+	default:
+		return fmt.Errorf("unknown tag key: %v", tagKey)
+	}
+	return nil
+}
+
+func (s *EntryFormField) Html() string {
+	return fmt.Sprintf("<input type=\"%v\" name=\"%v\" />\n", s.Params.InputType, s.Name)
+}
+
+func FieldToFormField(field reflect.StructField) (EntryFormField, error) {
+	formField := EntryFormField{
+		Name:   field.Name,
+		Params: EntryFormFieldParams{},
+	}
+	tag := field.Tag.Get("owl")
+	for _, param := range strings.Split(tag, " ") {
+		parts := strings.Split(param, "=")
+		if len(parts) != 2 {
+			continue
+		}
+		err := formField.Params.ApplyTag(parts[0], parts[1])
+		if err != nil {
+			return EntryFormField{}, err
+		}
+	}
+	return formField, nil
+}
+
+func StructToFormFields(meta interface{}) ([]EntryFormField, error) {
 	entryType := reflect.TypeOf(meta).Elem()
 	numFields := entryType.NumField()
-
 	fields := []EntryFormField{}
 	for i := 0; i < numFields; i++ {
-		field := EntryFormField{
-			Name:   entryType.Field(i).Name,
-			Params: map[string]string{},
-		}
-		tag := entryType.Field(i).Tag.Get("owl")
-		for _, param := range strings.Split(tag, " ") {
-			parts := strings.Split(param, "=")
-			if len(parts) == 2 {
-				field.Params[parts[0]] = parts[1]
-			} else {
-				field.Params[param] = ""
-			}
+		field, err := FieldToFormField(entryType.Field(i))
+		if err != nil {
+			return nil, err
 		}
 		fields = append(fields, field)
 	}
-
-	return fmt.Sprintf("%v", fields)
+	return fields, nil
+}
+
+func (s *EditorEntryForm) HtmlForm() (string, error) {
+	meta := s.entry.MetaData()
+	fields, err := StructToFormFields(meta)
+	if err != nil {
+		return "", err
+	}
+
+	html := "<form method=\"POST\">\n"
+	for _, field := range fields {
+		html += field.Html()
+	}
+	html += "<input type=\"submit\" value=\"Submit\" />\n"
+	html += "</form>\n"
+
+	return html, nil
 }

web/editor_handler.go

@@ -17,10 +17,13 @@ func NewEditorHandler(entryService *app.EntryService) *EditorHandler {
 }
 
 func (h *EditorHandler) HandleGet(c *fiber.Ctx) error {
-	form := editor.NewEditorFormService(&model.ImageEntry{})
-	return c.SendString(form.HtmlForm())
+	c.Set(fiber.HeaderContentType, fiber.MIMETextHTML)
+	formService := editor.NewEditorFormService(&model.ImageEntry{})
+	form, _ := formService.HtmlForm()
+	return c.SendString(form)
 }
 
 func (h *EditorHandler) HandlePost(c *fiber.Ctx) error {
+	c.Set(fiber.HeaderContentType, fiber.MIMETextHTML)
 	return c.SendString("Hello, Editor!")
 }