input("sAuthorCode"); $iNum = (int)$oRequest->input("iNum", 1); $this->iStartNum = $iNum; return $this->findValidUrl($sAuthorCode, $iNum, $oFlow); } public function urlbySubKey(Request $oRequest) { $oFlow = Flow::start("urlBySubKey"); $sSubKey = $oRequest->input("sSubKey"); $iNum = (int)$oRequest->input("iNum", 1); $this->iStartNum = $iNum; return $this->findValidUrlBySubKey($sSubKey, $iNum, $oFlow); } private function findValidUrlBySubKey($sSubKey, $iNum, $oFlow) { try { $sAuthors = ArticleKeyAuthorMap::where("key", $sSubKey)->first()?->authors; $aAuthors = json_decode($sAuthors, true); $oQuery = ModelArticles::whereIn("sAuthorCode", $aAuthors)->orderBy("id", "asc"); $iTotal = $oQuery->count(); if ($iTotal === 0) throw new \Exception("subkey:{$sSubKey} 旗下无任何记录"); // 1. 计算当前查库的偏移量,用 % 取模是最稳的,或者用 if 但不要改 iNum 本身 $iOffset = ($iNum - 1) % $iTotal; $iTrueNum = $iOffset + 1; // 真正对应数据库的第几条 $oArticle = $oQuery->skip($iOffset)->first(); echo "
";var_dump($oArticle->aOpt["thumb_use"]); // 是11
// 2. 拼文件名
$aThumbUse = $oArticle->aOpt["thumb_use"] ?? ["b"];
$sThumbUse = $aThumbUse[array_rand($aThumbUse)];
if ($sThumbUse == "full") {
$sFileName = $oArticle->sCode . '-1-' . $sThumbUse . '.jpg';
} else {
$sFileName = $oArticle->sCode . '-1-' . 'thumb_' . $sThumbUse . '.jpg';
}
// 3. 检查文件
if (!Storage::disk('upload_images')->exists($sFileName)) {
// 报警
TeleSlave::warn()->enableSlaveQueue(false)->enableAsync(false)->send("findValidUrlBySubKey:图片文件不存在:{$sFileName}");
// 💡 这里的出口判定最重要!
// 如果尝试次数已经超过了最大限制,或者已经把库里所有的记录都扫了一遍还没找到
if ($iNum >= ($this->iStartNum + $this->iMaxTry) || $iNum >= ($this->iStartNum + $iTotal)) {
throw new \Exception("该作者连续查找多张图片均不存在,已停止尝试");
}
// 递归:iNum 必须一直往上涨,不能回头!
return $this->findValidUrlBySubKey($sSubKey, $iNum + 1, $oFlow);
}
// 4. 成功
$aData = [
"sFileUrl" => Storage::disk('upload_images')->url($sFileName),
"iTrueNum" => $iTrueNum,
];
return response()->json($oFlow->setDataA($aData)->done()->toArray());
} catch (\Exception $e) {
$sMsg = $e->getMessage();
TeleSlave::warn()->enableSlaveQueue(false)->enableAsync(false)->send($sMsg);
return response()->json($oFlow->fail($sMsg)->toArray());
}
}
private function findValidUrl($sAuthorCode, $iNum, $oFlow)
{
try {
$oQuery = ModelArticles::where("sAuthorCode", $sAuthorCode)->orderBy("id", "asc");
$iTotal = $oQuery->count();
if ($iTotal === 0) throw new \Exception("作者 [{$sAuthorCode}] 旗下无任何记录");
// 1. 计算当前查库的偏移量,用 % 取模是最稳的,或者用 if 但不要改 iNum 本身
$iOffset = ($iNum - 1) % $iTotal;
$iTrueNum = $iOffset + 1; // 真正对应数据库的第几条
$oArticle = $oQuery->skip($iOffset)->first();
// 2. 拼文件名
$aThumbUse = $oArticle->aOpt["thumb_use"] ?? ["b"];
$sThumbUse = $aThumbUse[array_rand($aThumbUse)];
if ($sThumbUse == "full") {
$sFileName = $oArticle->sCode . '-1-' . $sThumbUse . '.jpg';
} else {
$sFileName = $oArticle->sCode . '-1-' . 'thumb_' . $sThumbUse . '.jpg';
}
// 3. 检查文件
if (!Storage::disk('upload_images')->exists($sFileName)) {
// 报警
TeleSlave::warn()->enableSlaveQueue(false)->enableAsync(false)->send("findValidUrl:图片文件不存在:{$sFileName}");
// 💡 这里的出口判定最重要!
// 如果尝试次数已经超过了最大限制,或者已经把库里所有的记录都扫了一遍还没找到
if ($iNum >= ($this->iStartNum + $this->iMaxTry) || $iNum >= ($this->iStartNum + $iTotal)) {
throw new \Exception("该作者连续查找多张图片均不存在,已停止尝试");
}
// 递归:iNum 必须一直往上涨,不能回头!
return $this->findValidUrl($sAuthorCode, $iNum + 1, $oFlow);
}
// 4. 成功
$aData = [
"sFileUrl" => Storage::disk('upload_images')->url($sFileName),
"iTrueNum" => $iTrueNum,
];
return response()->json($oFlow->setDataA($aData)->done()->toArray());
} catch (\Exception $e) {
$sMsg = $e->getMessage();
TeleSlave::warn()->enableSlaveQueue(false)->enableAsync(false)->send($sMsg);
return response()->json($oFlow->fail($sMsg)->toArray());
}
}
}