如何从laravel中插入的图像数组中获取单个图像？

Question

控制器功能:

<?php

public function addImages(Request $request, $imagesProductId) {

    $product = Product::create($request->all());
    $filenames = array();

    if (empty($request->images)) {
        $message = "error";
        return Redirect::back()->with('message', $message);
    }


    $rules = [
        'images' => 'mimes:jpeg,jpg,png'                 // allowed MIMEs
// size in pixels
    ];



    $validator = Validator::make($request->all(), $rules);
    $result = $validator->fails() ? 'QCVerified' : 'QCFailed';



    foreach ($request->images as $photo) {

//  echo($result);
        $filename = $photo->store('public/uploadedImages');
        $filename = substr($filename, 22);
        $filenames[] = asset('storage/uploadedImages/' . $filename);
        ProductsPhoto::create([
            'nonliveStatus' => $result,
            'product_id' => $product->id,
            'productId' => $imagesProductId,
            'filename' => $filename
        ]);
    }
    return response()->json($filenames);
}
?>

这是我用于存储图像阵列的存储功能.

功能从图像数组中获取单个图像:

<?php
$liveValues = priceInfo::join('productDescription', 'productDescription.productId', '=', 'productPriceDetails.productId')
        ->join('productAdditionalInformation', 'productAdditionalInformation.productId', '=', 'productPriceDetails.productId')
        ->join('products_photos', 'products_photos.productId', '=', 'productAdditionalInformation.productId')
        ->select('products_phots.filename')
        ->where('productPriceDetails.nonliveStatus', '=', "QCVerified")
        ->get();
?>

在这里,我从表中选择图像文件.它获取基于单个id存储的多个图像.但是我只需要存储的图像数组中的一个图像.

Answer 1

使用下面的代码限制记录

<?php
$liveValues = priceInfo::join('productDescription', 'productDescription.productId', '=', 'productPriceDetails.productId')
        ->join('productAdditionalInformation', 'productAdditionalInformation.productId', '=', 'productPriceDetails.productId')
        ->join('products_photos', 'products_photos.productId', '=', 'productAdditionalInformation.productId')
        ->select('products_phots.filename')
        ->where('productPriceDetails.nonliveStatus', '=', "QCVerified")
        ->limit(1)
        ->get();
    ?>

检查下面更新的代码：在这里您将按产品对图像进行分组，并获得单个产品图像

<?php
$liveValues = priceInfo::join('productDescription', 'productDescription.productId', '=', 'productPriceDetails.productId')
    ->join('productAdditionalInformation', 'productAdditionalInformation.productId', '=', 'productPriceDetails.productId')
    ->join('products_photos', 'products_photos.productId', '=', 'productAdditionalInformation.productId')
    ->select('products_phots.filename')
    ->where('productPriceDetails.nonliveStatus', '=', "QCVerified")
    ->limit(1)
    ->groupBy('products_photos.productId')
    ->get();
?>