API, Tag

app/service/NoteImageService.go

@@ -29,6 +29,7 @@ func (this *NoteImageService) GetNoteIds(imageId string) ([]bson.ObjectId) {
 	return nil
 }
 
+// TODO 这个web可以用, 但api会传来, 不用用了
 // 解析内容中的图片, 建立图片与note的关系
 // <img src="/file/outputImage?fileId=12323232" />
 // 图片必须是我的, 不然不添加
@@ -38,20 +39,21 @@ func (this *NoteImageService) UpdateNoteImages(userId, noteId, imgSrc, content s
 	if imgSrc != "" {
 		content = "<img src=\"" + imgSrc + "\" >" + content
 	}
-	reg, _ := regexp.Compile("outputImage\\?fileId=([a-z0-9A-Z]{24})")
+	// life 添加getImage
+	reg, _ := regexp.Compile("(outputImage|getImage)\\?fileId=([a-z0-9A-Z]{24})")
 	find := reg.FindAllStringSubmatch(content, -1) // 查找所有的
-	
+
 	// 删除旧的
 	db.DeleteAll(db.NoteImages, bson.M{"NoteId": bson.ObjectIdHex(noteId)})
-	
+
 	// 添加新的
 	var fileId string
 	noteImage := info.NoteImage{NoteId: bson.ObjectIdHex(noteId)}
 	hasAdded := make(map[string]bool)
 	if find != nil && len(find) > 0 {
 		for _, each := range find {
-			if each != nil && len(each) == 2 {
-				fileId = each[1]
+			if each != nil && len(each) == 3 {
+				fileId = each[2] // 现在有两个子表达式了
 				// 之前没能添加过的
 				if _, ok := hasAdded[fileId]; !ok {
 					Log(fileId)
@@ -105,3 +107,48 @@ func (this *NoteImageService) CopyNoteImages(fromNoteId, fromUserId, newNoteId,
 	
 	return content;
 }
+
+// 
+func (this *NoteImageService) getImagesByNoteIds(noteIds []bson.ObjectId) map[string][]info.File {
+	noteNoteImages := []info.NoteImage{}
+	db.ListByQ(db.NoteImages, bson.M{"NoteId": bson.M{"$in": noteIds}}, &noteNoteImages)
+	
+	// 得到imageId, 再去files表查所有的Files
+	imageIds := []bson.ObjectId{}
+	
+	// 图片1 => N notes
+	imageIdNotes := map[string][]string{} // imageId => [noteId1, noteId2, ...]
+	for _, noteImage := range noteNoteImages {
+		imageId := noteImage.ImageId
+		imageIds = append(imageIds, imageId)
+		
+		imageIdHex := imageId.Hex()
+		noteId := noteImage.NoteId.Hex()
+		if notes, ok := imageIdNotes[imageIdHex]; ok {
+			imageIdNotes[imageIdHex] = append(notes, noteId)
+		} else {
+			imageIdNotes[imageIdHex] = []string{noteId}
+		}
+	}
+	
+	// 得到所有files
+	files := []info.File{}
+	db.ListByQ(db.Files, bson.M{"_id": bson.M{"$in": imageIds}}, &files)
+	
+	// 建立note->file关联
+	noteImages := make(map[string][]info.File)
+	for _, file := range files {
+		fileIdHex := file.FileId.Hex() // == imageId
+		// 这个fileIdHex有哪些notes呢?
+		if notes, ok := imageIdNotes[fileIdHex]; ok {
+			for _, noteId := range notes {
+				if files, ok2 := noteImages[noteId]; ok2 {
+					noteImages[noteId] = append(files, file)
+				} else {
+					noteImages[noteId] = []info.File{file}
+				}
+			}
+		}
+	}
+	return noteImages
+}