update

odb/chat_session.hxx

@@ -0,0 +1,68 @@
+#pragma once
+#include <string>
+#include <cstddef> 
+#include <odb/nullable.hxx>
+#include <odb/core.hxx>
+#include "chat_session_member.hxx"
+
+namespace bite_im {
+
+enum class ChatSessionType {
+    SINGLE = 1,
+    GROUP = 2
+};
+
+#pragma db object table("chat_session")
+class ChatSession {
+    public:
+        ChatSession(){}
+        ChatSession(const std::string &ssid, 
+            const std::string &ssname, const ChatSessionType sstype):
+            _chat_session_id(ssid),  
+            _chat_session_name(ssname), 
+            _chat_session_type(sstype){}
+            
+        std::string chat_session_id() const { return _chat_session_id; }
+        void chat_session_id(std::string &ssid)  { _chat_session_id = ssid; }
+
+        std::string chat_session_name() const { return _chat_session_name; }
+        void chat_session_name(std::string &ssname)  { _chat_session_name = ssname; }
+        
+        ChatSessionType chat_session_type() const { return _chat_session_type; }
+        void chat_session_type(ChatSessionType val) { _chat_session_type = val; }
+    private:
+        friend class odb::access;
+        #pragma db id auto
+        unsigned long _id;
+        #pragma db type("varchar(64)") index unique
+        std::string _chat_session_id;
+        #pragma db type("varchar(64)")
+        std::string _chat_session_name;
+        #pragma db type("tinyint")
+        ChatSessionType _chat_session_type; //1-单聊； 2-群聊
+};
+
+// 这里条件必须是指定条件：  css::chat_session_type==1 && csm1.user_id=uid && csm2.user_id != csm1.user_id
+#pragma db view object(ChatSession = css)\
+                object(ChatSessionMember = csm1 : css::_chat_session_id == csm1::_session_id)\
+                object(ChatSessionMember = csm2 : css::_chat_session_id == csm2::_session_id)\
+                query((?))
+struct SingleChatSession {
+    #pragma db column(css::_chat_session_id)
+    std::string chat_session_id;
+    #pragma db column(csm2::_user_id)
+    std::string friend_id;
+};
+
+// 这里条件必须是指定条件：  css::chat_session_type==2 && csm.user_id=uid
+#pragma db view object(ChatSession = css)\
+                object(ChatSessionMember = csm : css::_chat_session_id == csm::_session_id)\
+                query((?))
+struct GroupChatSession {
+    #pragma db column(css::_chat_session_id)
+    std::string chat_session_id;
+    #pragma db column(css::_chat_session_name)
+    std::string chat_session_name;
+};
+
+}