Created
May 20, 2017 01:03
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mBaaSのデータをGoogleスプレッドシートへバックアップ
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function DataStoreBackup() { | |
// NCMBの準備 | |
var application_key = 'APPLICATION_KEY'; | |
var client_key = 'CLIENT_KEY'; | |
var ncmb = NCMB.init(application_key, client_key); | |
var dataTest = ncmb.DataStore("dataTest"); | |
// スプレッドシートのオブジェクト | |
var ss = SpreadsheetApp.getActiveSpreadsheet(); | |
var sheet = ss.getActiveSheet(); | |
// バックアップ済みデータの最終行に関する情報を取得 | |
var range = sheet.getRange("B2"); | |
var lastDate = range.getValue(); | |
if (lastDate != '') { | |
// 最終更新日があれば | |
lastDate = new Date(lastDate); | |
dataTest = dataTest.greaterThanOrEqualTo("updateDate", lastDate); | |
} | |
// 設定。limitで一回当たりに取得するデータ数を指定(MAXは1000) | |
var limit = 10; | |
var page = 0; | |
dataTest = dataTest.limit(limit); | |
// バックアップを記載する最終行を取得 | |
var row_index = 4; | |
var last_row = getLastRow(sheet); | |
while (true) { | |
// データストア検索 | |
var results = dataTest | |
.order('updateDate') | |
.fetchAll(); | |
// 新しいデータがなければ終了 | |
if (results.length == 0) { | |
break; | |
} | |
// カラムを生成 | |
makeColumns(sheet, results[0].fields); | |
var keys = Object.keys(results[0].fields); | |
// バックアップ開始 | |
for (var i = 0; i < results.length; i++) { | |
var row = results[i]; | |
var values = []; | |
for (var j = 0; j < keys.length; j++) { | |
values.push(row.fields[keys[j]]); | |
} | |
// すでに記録済みであれば更新 | |
if (index = existObjectId(sheet, row.get("objectId"))) { | |
array2row(sheet, index, values); | |
}else{ | |
array2row(sheet, last_row, values); | |
last_row++; | |
} | |
} | |
// 最終行の日付を記録 | |
var updateDate = new Date(results[results.length - 1].get("updateDate")); | |
if (lastDate < updateDate) { | |
sheet.getRange("B2").setValue(updateDate); | |
lastDate = updateDate; | |
} | |
// MAXの取得行数に満たなかったら終了 | |
if (results.length < limit) { | |
break; | |
} | |
// 次の取得へ | |
page++; | |
dataTest = dataTest.skip(page * limit); | |
} | |
} | |
// すでにobjectIdが記録済みかチェックします | |
function existObjectId(sheet, value) { | |
var row_index = 4; | |
while (true) { | |
var objectId = sheet.getRange(row_index, 1).getValue(); | |
if (objectId == "") { | |
return false; | |
} | |
if (objectId == value) { | |
return row_index; | |
} | |
row_index++; | |
} | |
} | |
// 記録されている最終行を取得します | |
function getLastRow(sheet) { | |
var last_row = 4; | |
while (true) { | |
if (sheet.getRange(last_row, 1).getValue() == "") { | |
return last_row; | |
} | |
last_row++; | |
} | |
} | |
// カラムを作ります | |
function makeColumns(sheet, fields) { | |
var keys = Object.keys(fields); | |
if (sheet.getRange("A2").getValue() == "objectId") | |
return; | |
array2row(sheet, 3, keys); | |
} | |
// 配列を指定された行に順番に出力します | |
function array2row(sheet, row, ary) { | |
for (var i = 0; i < ary.length; i++) { | |
sheet.getRange(row, i+1).setValue(ary[i]); | |
} | |
} |
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