{"id":22682,"date":"2024-11-21T13:43:37","date_gmt":"2024-11-21T05:43:37","guid":{"rendered":"https:\/\/fwq.ai\/blog\/22682\/"},"modified":"2024-11-21T13:43:37","modified_gmt":"2024-11-21T05:43:37","slug":"laravel-%e6%8f%90%e7%a4%ba%e6%b2%a1%e6%9c%89%e4%b8%bb%e9%94%ae","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/22682\/","title":{"rendered":"laravel \u63d0\u793a\u6ca1\u6709\u4e3b\u952e"},"content":{"rendered":"

\u5728\u4f7f\u7528 laravel \u8fdb\u884c\u6570\u636e\u5e93\u64cd\u4f5c\u65f6\uff0c\u6709\u65f6\u5019\u4f1a\u9047\u5230\u4e00\u4e2a\u5e38\u89c1\u7684\u95ee\u9898\uff1a\u6ca1\u6709\u4e3b\u952e\u3002\u8fd9\u662f\u56e0\u4e3a\u5728 laravel \u9ed8\u8ba4\u7684\u6a21\u578b\u4e2d\uff0c\u4f1a\u81ea\u52a8\u5047\u5b9a\u4e3b\u952e\u4e3a id\uff0c\u5982\u679c\u6570\u636e\u5e93\u4e2d\u6ca1\u6709 id \u5b57\u6bb5\u6216\u8005\u8be5\u5b57\u6bb5\u6ca1\u6709\u88ab\u8bbe\u7f6e\u4e3a\u4e3b\u952e\uff0c\u5c31\u4f1a\u63d0\u793a\u6ca1\u6709\u4e3b\u952e\u7684\u9519\u8bef\u3002<\/p>\n

\u90a3\u4e48\uff0c\u5982\u4f55\u89e3\u51b3\u6ca1\u6709\u4e3b\u952e\u7684\u95ee\u9898\u5462\uff1f\u4e0b\u9762\u5c06\u5206\u522b\u4ece\u6570\u636e\u5e93\u548c Laravel \u6a21\u578b\u7684\u89d2\u5ea6\u6765\u4ecb\u7ecd\u89e3\u51b3\u65b9\u6cd5\u3002<\/p>\n

\u4e00\u3001\u6570\u636e\u5e93\u89e3\u51b3\u65b9\u6cd5<\/p>\n

    \n
  1. \u8bbe\u7f6e\u4e3b\u952e<\/li>\n<\/ol>\n

    \u5728 MySQL \u6570\u636e\u5e93\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 ALTER TABLE \u8bed\u53e5\u6765\u4fee\u6539\u8868\u7684\u7ed3\u6784\uff0c\u5305\u62ec\u8bbe\u7f6e\u4e3b\u952e\u3002\u4f8b\uff1a<\/p>\n

    ALTER TABLE \u8868\u540d ADD PRIMARY KEY(\u5b57\u6bb5\u540d);<\/pre>\n
      \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
    \u5176\u4e2d\uff0c\u8868\u540d\u548c\u5b57\u6bb5\u540d\u9700\u8981\u81ea\u884c\u66ff\u6362\u3002<\/p>\n
      \n
    1. \u521b\u5efa\u65b0\u7684\u4e3b\u952e<\/li>\n<\/ol>\n
      \u5982\u679c\u6570\u636e\u5e93\u4e2d\u6ca1\u6709\u9002\u5408\u7684\u4e3b\u952e\u5b57\u6bb5\uff0c\u53ef\u4ee5\u901a\u8fc7\u65b0\u5efa\u4e00\u4e2a\u4e3b\u952e\u5b57\u6bb5\u6765\u89e3\u51b3\u95ee\u9898\u3002\u4f8b\uff1a<\/p>\n
      ALTER TABLE \u8868\u540d ADD \u5b57\u6bb5\u540d INT AUTO_INCREMENT PRIMARY KEY;<\/pre>\n
        \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
      \u5176\u4e2d\uff0c\u8868\u540d\u548c\u5b57\u6bb5\u540d\u9700\u8981\u81ea\u884c\u66ff\u6362\u3002AUTO_INCREMENT \u8868\u793a\u8be5\u5b57\u6bb5\u662f\u81ea\u589e\u7684\u3002<\/p>\n
      \u4e8c\u3001Laravel \u6a21\u578b\u89e3\u51b3\u65b9\u6cd5<\/p>\n
        \n
      1. \u81ea\u5b9a\u4e49\u4e3b\u952e<\/li>\n<\/ol>\n
        \u5728 Laravel \u6a21\u578b\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7 $primaryKey \u5c5e\u6027\u6765\u81ea\u5b9a\u4e49\u4e3b\u952e\u3002\u4f8b\uff1a<\/p>\n
        class User extends Model\n{\n    protected $primaryKey = 'user_id';\n}<\/pre>\n
          \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
        \u8fd9\u91cc\u5c06\u4e3b\u952e\u8bbe\u7f6e\u4e3a user_id\u3002<\/p>\n
          \n
        1. \u7981\u7528\u81ea\u589e\u4e3b\u952e<\/li>\n<\/ol>\n
          \u5982\u679c\u4f7f\u7528\u7684\u662f\u975e\u81ea\u589e\u4e3b\u952e\uff0c\u9700\u8981\u5c06 $incrementing \u5c5e\u6027\u8bbe\u7f6e\u4e3a false\uff0c\u4ee5\u7981\u7528\u81ea\u589e\u4e3b\u952e\u3002\u4f8b\uff1a<\/p>\n
          class Product extends Model\n{\n    public $incrementing = false;\n}<\/pre>\n
            \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
            \n
          1. \u624b\u52a8\u6307\u5b9a\u4e3b\u952e\u503c<\/li>\n<\/ol>\n
            \u5728\u4e00\u4e9b\u7279\u5b9a\u7684\u573a\u666f\u4e0b\uff0c\u53ef\u80fd\u9700\u8981\u624b\u52a8\u6307\u5b9a\u4e3b\u952e\u503c\u3002\u8fd9\u53ef\u4ee5\u901a\u8fc7\u5728\u6a21\u578b\u4e2d\u8bbe\u7f6e $keyType \u548c $fillable \u5c5e\u6027\u6765\u5b9e\u73b0\u3002\u4f8b\uff1a<\/p>\n
            class Order extends Model\n{\n    protected $keyType = 'string';\n    protected $fillable = ['order_id', 'product_name'];\n}<\/pre>\n
              \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
            \u8fd9\u91cc\u5c06\u4e3b\u952e\u7c7b\u578b\u8bbe\u7f6e\u4e3a\u5b57\u7b26\u4e32\uff0c\u5e76\u5b9a\u4e49\u4e86\u53ef\u586b\u5145\u7684\u5b57\u6bb5\u3002<\/p>\n
            \u603b\u7ed3<\/p>\n
            \u901a\u8fc7\u4ee5\u4e0a\u65b9\u6cd5\uff0c\u53ef\u4ee5\u89e3\u51b3 Laravel \u6a21\u578b\u4e2d\u6ca1\u6709\u4e3b\u952e\u7684\u95ee\u9898\u3002\u5728\u5b9e\u9645\u5f00\u53d1\u4e2d\uff0c\u53ef\u4ee5\u6839\u636e\u5177\u4f53\u9700\u6c42\u9009\u62e9\u76f8\u5e94\u7684\u65b9\u6cd5\u8fdb\u884c\u89e3\u51b3\u3002\u540c\u65f6\uff0c\u9700\u8981\u6ce8\u610f\u4fdd\u8bc1\u4e3b\u952e\u7684\u552f\u4e00\u6027\uff0c\u907f\u514d\u53ef\u80fd\u51fa\u73b0\u7684\u51b2\u7a81\u95ee\u9898\u3002<\/p>\n
            \u4ee5\u4e0a\u5c31\u662flaravel \u63d0\u793a\u6ca1\u6709\u4e3b\u952e\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
            \u5728\u4f7f\u7528 laravel \u8fdb\u884c\u6570\u636e\u5e93\u64cd\u4f5c\u65f6\uff0c\u6709\u65f6\u5019\u4f1a\u9047\u5230\u4e00\u4e2a\u5e38\u89c1\u7684\u95ee\u9898\uff1a\u6ca1\u6709\u4e3b\u952e\u3002\u8fd9\u662f\u56e0\u4e3a\u5728 laravel \u9ed8\u8ba4\u7684\u6a21\u578b\u4e2d\uff0c\u4f1a\u81ea\u52a8\u5047\u5b9a\u4e3b\u952e\u4e3a id\uff0c\u5982\u679c\u6570\u636e\u5e93\u4e2d\u6ca1\u6709 id \u5b57\u6bb5\u6216\u8005\u8be5\u5b57\u6bb5\u6ca1\u6709\u88ab\u8bbe\u7f6e\u4e3a\u4e3b\u952e\uff0c\u5c31\u4f1a\u63d0\u793a\u6ca1\u6709\u4e3b\u952e\u7684\u9519\u8bef\u3002 \u90a3\u4e48\uff0c\u5982\u4f55\u89e3\u51b3\u6ca1\u6709\u4e3b\u952e\u7684\u95ee\u9898\u5462\uff1f\u4e0b\u9762\u5c06\u5206\u522b\u4ece\u6570\u636e\u5e93\u548c Laravel \u6a21\u578b\u7684\u89d2\u5ea6\u6765\u4ecb\u7ecd\u89e3\u51b3\u65b9\u6cd5\u3002 \u4e00\u3001\u6570\u636e\u5e93\u89e3\u51b3\u65b9\u6cd5 \u8bbe\u7f6e\u4e3b\u952e \u5728 MySQL \u6570\u636e\u5e93\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 ALTER TABLE \u8bed\u53e5\u6765\u4fee\u6539\u8868\u7684\u7ed3\u6784\uff0c\u5305\u62ec\u8bbe\u7f6e\u4e3b\u952e\u3002\u4f8b\uff1a ALTER TABLE \u8868\u540d ADD PRIMARY KEY(\u5b57\u6bb5\u540d); \u767b\u5f55\u540e\u590d\u5236 \u5176\u4e2d\uff0c\u8868\u540d\u548c\u5b57\u6bb5\u540d\u9700\u8981\u81ea\u884c\u66ff\u6362\u3002 \u521b\u5efa\u65b0\u7684\u4e3b\u952e \u5982\u679c\u6570\u636e\u5e93\u4e2d\u6ca1\u6709\u9002\u5408\u7684\u4e3b\u952e\u5b57\u6bb5\uff0c\u53ef\u4ee5\u901a\u8fc7\u65b0\u5efa\u4e00\u4e2a\u4e3b\u952e\u5b57\u6bb5\u6765\u89e3\u51b3\u95ee\u9898\u3002\u4f8b\uff1a ALTER TABLE \u8868\u540d ADD \u5b57\u6bb5\u540d INT AUTO_INCREMENT PRIMARY KEY; \u767b\u5f55\u540e\u590d\u5236 \u5176\u4e2d\uff0c\u8868\u540d\u548c\u5b57\u6bb5\u540d\u9700\u8981\u81ea\u884c\u66ff\u6362\u3002AUTO_INCREMENT \u8868\u793a\u8be5\u5b57\u6bb5\u662f\u81ea\u589e\u7684\u3002 \u4e8c\u3001Laravel \u6a21\u578b\u89e3\u51b3\u65b9\u6cd5 \u81ea\u5b9a\u4e49\u4e3b\u952e \u5728 Laravel \u6a21\u578b\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7 $primaryKey \u5c5e\u6027\u6765\u81ea\u5b9a\u4e49\u4e3b\u952e\u3002\u4f8b\uff1a class User extends Model { protected […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-22682","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/22682","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=22682"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/22682\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=22682"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=22682"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=22682"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}