mongoDB 2 または 3 で次のドキュメントのすべてのタグを照会するにはどうすればよいですか。
{
"_id" : ObjectId("55dc45017137a4e70b8b4569"),
"campainName" : "",
"themeName" : "theme1",
"emailListName" : "eiEmails",
"emailSubject" : "",
"emailFrom" : "",
"allNews" : [
{
"type" : "1",
"tag" : ['aa','bb','cc'],
"link" : "",
"image" : ""
}
]
},
{
"_id" : ObjectId("55dc45017137a4e70b8b4570"),
"campainName" : "",
"themeName" : "theme2",
"emailListName" : "afaeiEmails",
"emailSubject" : "",
"emailFrom" : "",
"allNews" : [
{
"type" : "1",
"tag" : ['da','db','dc'],
"link" : "",
"image" : ""
}
]
}
結果として、次のようなものが必要です。
{['aa','bb','cc'], ['da','db','dc']}
doctrine odm でクエリのスタイルが必要です。