如果其他人在使用數組循環做軌道

Question

目前我得到一堆從數據庫中的記錄，並在陣列包裝的記錄，但我想成立一​​個if條件中它

@reports = SnapshotReport.includes(camera: [:user]).where(report_date: date) 
records = [] 
@reports.each do |report| 
    next if report.camera.cloud_recording.blank? 
    records[records.length] = [ 
    report.camera["name"], 
    report.camera["exid"], 
    report.camera.user["firstname"], 
    report.camera.cloud_recording["storage_duration"], 
    report.camera["is_online"], 
    report["snapshot_count"], 
    report.camera["id"], 
    report.camera.user["id"], 
    report.camera.user["lastname"], 
    ] 
end 

現在我是什麼做的是使用next if跳過這樣的值，其中

next if report.camera.cloud_recording.blank? 

是空的，但我想要做這件事陣列製作部分，但這樣的 如果report.camera.cloud_recording爲null，則它節省了""空字符串，但如果報告.camera.cloud_recording存在，則獲得的report.camera.cloud_recording["storage_duration"]

Answer 1

值使用

@reports = SnapshotReport.includes(camera: [:user]).where(report_date: date) 
records = [] 
@reports.each do |report| 
    records[records.length] = [ 
    report.camera["name"], 
    report.camera["exid"], 
    report.camera.user["firstname"], 
    report.camera.cloud_recording || {"storage_duration" => ""} ["storage_duration"], 
    report.camera["is_online"], 
    report["snapshot_count"], 
    report.camera["id"], 
    report.camera.user["id"], 
    report.camera.user["lastname"], 
    ] 
end