<p>안녕하세요&nbsp;</p>
<p>12장에서 데이터베이스를 몽고DB로 사용하지 않고 mysql로 사용해보려합니다.</p>
<p>카카오톡 연동 로그인 때문인데요(9장)</p>
<p></p>
<p>schemas/chat.js&nbsp;</p>
<div style="color: #d4d4d4; background-color: #1e1e1e; font-family: Consolas, 'Courier New', monospace; font-size: 14px; line-height: 19px; white-space: pre;">
<div>&nbsp;&nbsp;&nbsp;&nbsp;<span style="color: #9cdcfe;">room</span><span style="color: #9cdcfe;">:</span>&nbsp;{</div>
<div>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style="color: #9cdcfe;">type</span><span style="color: #9cdcfe;">:</span>&nbsp;<span style="color: #4fc1ff;">ObjectId</span>,&nbsp;<span style="color: #6a9955;">//ObjectId&nbsp;:명시적으로&nbsp;ID를&nbsp;선언할&nbsp;때,&nbsp;</span></div>
<div>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style="color: #9cdcfe;">required</span><span style="color: #9cdcfe;">:</span>&nbsp;<span style="color: #569cd6;">true</span>,</div>
<div>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style="color: #9cdcfe;">ref</span><span style="color: #9cdcfe;">:</span>&nbsp;<span style="color: #ce9178;">'Room'</span>,&nbsp;&nbsp;&nbsp;&nbsp;<span style="color: #6a9955;">//몽구스가&nbsp;populate로Room의&nbsp;Object가&nbsp;아니라&nbsp;Room에&nbsp;대한&nbsp;정보&nbsp;객체로&nbsp;치환&nbsp;해줌</span></div>
<div>&nbsp;&nbsp;&nbsp;},</div>
</div>
<p>혹시 이 선언을 mysql로 바꾸려면 어떻게 해야할까요?</p>

<p>이 부분은 associate로 chat.belongsTo(room) room.hasMany(chat) 입니다.</p>

인프런 커뮤니티 질문&답변

12장 몽고 DB대신 mysql로 사용해보려합니다.