1.追加文章可见范围功能

2.删除文章右侧滚动条

backend/src/main/java/com/openisle/model/Post.java

@@ -66,6 +66,10 @@ public class Post {
   @Column(nullable = false)
   private PostType type = PostType.NORMAL;
 
+  @Enumerated(EnumType.STRING)
+  @Column(nullable = false)
+  private PostVisibleScopeType visibleScope = PostVisibleScopeType.ALL;
+
   @Column(nullable = false)
   private boolean closed = false;
 

backend/src/main/java/com/openisle/model/PostVisibleScopeType.java

@@ -0,0 +1,32 @@
+package com.openisle.model;
+
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
+
+public enum PostVisibleScopeType {
+    ALL,
+    ONLY_ME,
+    ONLY_REGISTER;
+
+    /**
+     * 防止画面传递错误的值
+     * @param value
+     * @return
+     */
+    @JsonCreator
+    public static PostVisibleScopeType fromString(String value) {
+        if (value == null) return ALL;
+        for (PostVisibleScopeType type : PostVisibleScopeType.values()) {
+            if (type.name().equalsIgnoreCase(value)) {
+                return type;
+            }
+        }
+        // 不匹配时给默认值，而不是抛异常
+        return ALL;
+    }
+
+    @JsonValue
+    public String toValue() {
+        return this.name();
+    }
+}