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更新Tag

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小海
2019-12-04 16:30:51 +08:00
parent 1745a5d821
commit 7ba287d261
3 changed files with 65 additions and 50 deletions
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66
src/main/java/cn/celess/blog/service/serviceimpl/ArticleServiceImpl.java
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@@ -277,10 +277,10 @@ public class ArticleServiceImpl implements ArticleService {
if (reqBody.getCategory() == null || reqBody.getCategory().replaceAll(" ", "").isEmpty()) {
throw new MyException(ResponseEnum.PARAMETERS_ERROR);
}
// 暂时不更新tags
// if (reqBody.getTags() == null || reqBody.getTags().replaceAll(" ", "").isEmpty()) {
// throw new MyException(ResponseEnum.PARAMETERS_ERROR);
// }
// 暂时不更新tags
if (reqBody.getTags() == null || reqBody.getTags().replaceAll(" ", "").isEmpty()) {
throw new MyException(ResponseEnum.PARAMETERS_ERROR);
}
//写入数据库的数据
Article article = new Article();
@@ -317,26 +317,44 @@ public class ArticleServiceImpl implements ArticleService {
article.setCategoryId(oldArticle.getCategoryId());
}
// String[] newTags = reqBody.getTags().replaceAll(" ", "").split(",");
// //防止出现 ‘null2’这种情况
// article.setTagsId("");
// for (String t : newTags) {
// Tag tag = tagMapper.findTagByName(t);
// if (tag == null) {
// tag = new Tag();
// tag.setName(t);
// tag.setArticles(oldArticle.getId() + ",");
// tag = tagMapper.save(tag);
// article.setTagsId(article.getTagsId() + tag.getId() + ",");
// continue;
// }
// article.setTagsId(article.getTagsId() + tag.getId() + ",");
// }
// TODO:::: tag的更新
article.setTagsId(oldArticle.getTagsId());
String[] newTags = reqBody.getTags().split(",");
String[] tagIds = oldArticle.getTagsId().split(",");
//防止出现 ‘null2’这种情况
article.setTagsId("");
for (String t : newTags) {
Tag tag = tagMapper.findTagByName(t);
if (tag == null) {
tag = new Tag();
tag.setName(t);
tag.setArticles(oldArticle.getId() + ",");
int status = tagMapper.insert(tag);
if (status == 0) {
// 插入失败
throw new MyException(ResponseEnum.FAILURE);
}
article.setTagsId(article.getTagsId() + tag.getId() + ",");
continue;
}
article.setTagsId(article.getTagsId() + tag.getId() + ",");
}
for (String tagId : tagIds) {
Tag tagById = tagMapper.findTagById(Long.parseLong(tagId));
// 在新更新的tag中是否有原有的tag
boolean isOldTag = false;
for (String s : newTags) {
if (s.equals(tagById.getName())) {
isOldTag = true;
break;
}
}
if (!isOldTag) {
tagById.setArticles(tagById.getArticles().replace(oldArticle.getId() + ",", ""));
}
tagMapper.update(tagById);
}
//
// // TODO:::: tag的更新
// article.setTagsId(oldArticle.getTagsId());
article.setUpdateDate(new Date());