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\u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u4e86\u89e3Laravel Schema Builder\u7684\u57fa\u7840\u77e5\u8bc6\u3002Schema Builder\u662fLaravel\u7684\u4e00\u4e2a\u7ec4\u4ef6\uff0c\u5b83\u63d0\u4f9b\u4e86\u4e00\u79cd\u7b80\u5355\u7684\u65b9\u5f0f\u6765\u521b\u5efa\u548c\u4fee\u6539\u6570\u636e\u5e93\u8868\u683c\u7684\u7ed3\u6784\u3002\u5728\u8fd9\u91cc\uff0c\u6211\u4eec\u5c06\u4ee5MySQL\u4e3a\u4f8b\u8fdb\u884c\u6f14\u793a\u3002<\/p>\n
\u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u7528\u6237\u8868\u683c\uff08users\uff09\uff0c\u5176\u4e2d\u6709\u4e00\u4e2a\u540d\u4e3a\u201cage\u201d\u7684\u5b57\u6bb5\uff0c\u5b83\u7684\u6570\u636e\u7c7b\u578b\u4e3a\u6574\u6570\u7c7b\u578b\uff08INT\uff09\uff0c\u73b0\u5728\u6211\u4eec\u9700\u8981\u5c06\u5176\u4fee\u6539\u4e3a\u5b57\u7b26\u4e32\u7c7b\u578b\uff08VARCHAR\uff09\u3002<\/p>\n
\u6b65\u9aa41\uff1a\u521b\u5efa\u8fc1\u79fb\u6587\u4ef6<\/p>\n
Laravel\u7684\u8fc1\u79fb\u6587\u4ef6\u662f\u6570\u636e\u5e93\u4e2d\u8868\u683c\u7ed3\u6784\u7684\u201c\u84dd\u672c\u201d\u3002\u6211\u4eec\u9700\u8981\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u8fc1\u79fb\u6587\u4ef6\u6765\u5b8c\u6210\u5b57\u6bb5\u7c7b\u578b\u7684\u4fee\u6539\u3002<\/p>\n
\u4f7f\u7528Artisan\u547d\u4ee4\u884c\u5de5\u5177\uff0c\u6211\u4eec\u53ef\u4ee5\u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n
php artisan make:migration modify_users_table --table=users<\/pre>\n\u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u8fd9\u4e2a\u547d\u4ee4\u5c06\u4f1a\u521b\u5efa\u4e00\u4e2a\u540d\u4e3a\u201cmodify_users_table\u201d\u7684\u65b0\u8fc1\u79fb\u6587\u4ef6\u3002\u6211\u4eec\u9700\u8981\u6253\u5f00\u8be5\u6587\u4ef6\uff0c\u5e76\u4f7f\u7528\u4e0b\u9762\u7684\u4ee3\u7801\u5728up\u65b9\u6cd5\u4e2d\u7f16\u5199\u8fc1\u79fb\u903b\u8f91\uff1a<\/p>\n
use IlluminateSupportFacadesSchema;\nuse IlluminateDatabaseSchemaBlueprint;\nuse IlluminateDatabaseMigrationsMigration;\n\nclass ModifyUsersTable extends Migration\n{\n \/**\n * Run the migrations.\n *\n * @return void\n *\/\n public function up()\n {\n Schema::table('users', function (Blueprint $table) {\n $table->string('age')->change();\n });\n }\n\n \/**\n * Reverse the migrations.\n *\n * @return void\n *\/\n public function down()\n {\n Schema::table('users', function (Blueprint $table) {\n $table->integer('age')->change();\n });\n }\n}<\/pre>\n\u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u5728\u8fd9\u4e2a\u8fc1\u79fb\u6587\u4ef6\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528\u4e86Schema::table\u65b9\u6cd5\u6765\u64cd\u4f5cusers\u8868\u683c\u3002\u7136\u540e\u4f7f\u7528\u4e86Blueprint\u5bf9\u8c61\u6765\u521b\u5efa\u5bf9\u65b0\u7684\u7ed3\u6784\u7684\u5b9a\u4e49\u3002\u7136\u540e\uff0c\u6211\u4eec\u4f7f\u7528change()\u65b9\u6cd5\u6765\u4fee\u6539\u201cage\u201d\u5b57\u6bb5\u7684\u7c7b\u578b\u3002\u8fd9\u4e2a\u65b9\u6cd5\u4f1a\u544a\u8bc9Laravel\u5c06\u201cage\u201d\u5b57\u6bb5\u7684\u6570\u636e\u7c7b\u578b\u8bbe\u7f6e\u4e3a\u5b57\u7b26\u4e32\u7c7b\u578b\u3002<\/p>\n
\u503c\u5f97\u6ce8\u610f\u7684\u662f\uff0c\u5982\u679c\u6211\u4eec\u5728\u540c\u4e00\u4e2a\u8fc1\u79fb\u6587\u4ef6\u4e2d\u6dfb\u52a0\u4e86\u591a\u4e2a\u5b57\u6bb5\uff0c\u5219\u53ef\u4ee5\u4f7f\u7528\u591a\u4e2achange()\u65b9\u6cd5\u6765\u9010\u4e2a\u66f4\u6539\u5b83\u4eec\u7684\u6570\u636e\u7c7b\u578b\u3002<\/p>\n
\u6b65\u9aa42\uff1a\u8fd0\u884c\u8fc1\u79fb\u6587\u4ef6<\/p>\n
\u73b0\u5728\u6211\u4eec\u5df2\u7ecf\u7f16\u5199\u597d\u4e86\u8fc1\u79fb\u6587\u4ef6\uff0c\u53ef\u4ee5\u8fd0\u884c\u4e0b\u9762\u7684\u547d\u4ee4\u8ba9Laravel\u6839\u636e\u8fc1\u79fb\u6587\u4ef6\u6765\u5904\u7406users\u8868\u683c\u7684\u53d8\u66f4\u3002<\/p>\n
php artisan migrate<\/pre>\n\u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u8fd9\u4e2a\u547d\u4ee4\u5c06\u4f1a\u8fd0\u884c\u6240\u6709\u5c1a\u672a\u8fd0\u884c\u7684\u8fc1\u79fb\u6587\u4ef6\uff0c\u5e76\u5c06\u5176\u8bb0\u5f55\u5230\u8fc1\u79fb\u6587\u4ef6\u8868\u4e2d\u3002\u6240\u4ee5\uff0c\u5982\u679c\u60a8\u7684\u8fc1\u79fb\u6587\u4ef6\u662f\u7b2c\u4e00\u4e2a\u6216\u8005\u552f\u4e00\u4e00\u4e2a\u6b63\u5728\u8fd0\u884c\u7684\u8fc1\u79fb\u6587\u4ef6\uff0c\u5219\u4e0d\u9700\u8981\u4f7f\u7528–pretend\u9009\u9879\u3002<\/p>\n
\u6b65\u9aa43\uff1a\u6821\u9a8c<\/p>\n
\u5728\u8fc1\u79fb\u6210\u529f\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u53bb\u6570\u636e\u5e93\u4e2d\u67e5\u770busers\u8868\u683c\u7684\u7ed3\u6784\uff0c\u4ee5\u786e\u4fdd\u6211\u4eec\u4fee\u6539\u7684\u6570\u636e\u7c7b\u578b\u5b57\u6bb5\u5df2\u7ecf\u751f\u6548\u3002\u5728MySQL\u670d\u52a1\u5668\u4e0a\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e0b\u9762\u7684\u547d\u4ee4\uff1a<\/p>\n
DESCRIBE users;<\/pre>\n\u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u8fd9\u4e2a\u547d\u4ee4\u5c06\u4f1a\u663e\u793a\u51fausers\u8868\u683c\u7684\u7ed3\u6784\uff0c\u4ee5\u53ca\u6211\u4eec\u5728\u8fc1\u79fb\u6587\u4ef6\u4e2d\u4fee\u6539\u7684\u6570\u636e\u7c7b\u578b\u7684\u5b57\u6bb5\u3002\u5982\u679c\u4fee\u6539\u6210\u529f\uff0c\u5219\u5e94\u8be5\u53ef\u4ee5\u770b\u5230\u5b83\u7684\u7c7b\u578b\u5df2\u7ecf\u88ab\u8bbe\u7f6e\u4e3aVARCHAR\u7c7b\u578b\u3002<\/p>\n
+-------+--------------+------+-----+---------+----------------+\n| Field | Type | Null | Key | Default | Extra |\n+-------+--------------+------+-----+---------+----------------+\n| id | int(10) | NO | PRI | NULL | auto_increment |\n| name | varchar(255) | NO | | NULL | |\n| age | varchar(255) | NO | | NULL | |\n+-------+--------------+------+-----+---------+----------------+<\/pre>\n\u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u603b\u7ed3<\/p>\n
\u5728Laravel\u4e2d\uff0c\u4fee\u6539\u5b57\u6bb5\u7684\u6570\u636e\u7c7b\u578b\u662f\u4e00\u4ef6\u975e\u5e38\u7b80\u5355\u7684\u4e8b\u60c5\u3002\u6211\u4eec\u53ea\u9700\u8981\u7f16\u5199\u4e00\u4e2a\u65b0\u7684\u8fc1\u79fb\u6587\u4ef6\uff0c\u5e76\u4f7f\u7528Schema Builder\u7684API\u5373\u53ef\u8f7b\u677e\u5b8c\u6210\u3002\u5982\u679c\u60a8\u60f3\u8981\u66f4\u6539\u5176\u4ed6\u65b9\u9762\u7684\u8868\u683c\u7ed3\u6784\uff0c\u4e5f\u53ef\u4ee5\u8f7b\u677e\u5730\u901a\u8fc7\u4fee\u6539\u8fc1\u79fb\u6587\u4ef6\u6765\u5b8c\u6210\u3002\u603b\u4e4b\uff0cLaravel\u771f\u7684\u662fWeb\u5f00\u53d1\u4e2d\u7684\u4e00\u6b3e\u5f3a\u5927\u5de5\u5177\uff0c\u65e0\u8bba\u662f\u5728\u4fee\u6539\u8868\u683c\u7ed3\u6784\u8fd8\u662f\u5b9e\u73b0\u5176\u4ed6\u529f\u80fd\u65b9\u9762\uff0c\u5b83\u90fd\u53ef\u4ee5\u8ba9\u60a8\u66f4\u52a0\u8f7b\u677e\u81ea\u5982\u5730\u5b9e\u73b0\u3002<\/p>\n
\u4ee5\u4e0a\u5c31\u662flaravel\u600e\u4e48\u4fee\u6539\u5b57\u6bb5\u7c7b\u578b\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":"
\u8fd1\u5e74\u6765\uff0claravel\u5df2\u7ecf\u6210\u4e3a\u4e86web\u5f00\u53d1\u9886\u57df\u7684\u9886\u5934\u7f8a\uff0c\u800c\u4e14\u8d8a\u6765\u8d8a\u591a\u7684\u4eba\u613f\u610f\u4f7f\u7528\u5b83\u5f00\u59cb\u5f00\u53d1\u81ea\u5df1\u7684\u9879\u76ee\u3002\u56e0\u4e3alaravel\u5177\u6709\u5f88\u9ad8\u7684\u7075\u6d3b\u6027\u548c\u53ef\u6269\u5c55\u6027\u3002\u7136\u800c\uff0c\u5728\u5bf9\u6570\u636e\u5e93\u8fdb\u884c\u64cd\u4f5c\u7684\u65f6\u5019\uff0c\u6211\u4eec\u7ecf\u5e38\u9700\u8981\u4fee\u6539\u8868\u683c\u7684\u7ed3\u6784\uff0c\u5305\u62ec\u5b57\u6bb5\u7c7b\u578b\u3001\u5927\u5c0f\u3001\u9ed8\u8ba4\u503c\u7b49\u7b49\u3002\u5728\u8fd9\u7bc7\u6587\u7ae0\u4e2d\uff0c\u6211\u4eec\u5c06\u8ba8\u8bba\u5982\u4f55\u5728laravel 5.4\u4e2d\u4fee\u6539\u5b57\u6bb5\u7c7b\u578b\u3002 \u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u4e86\u89e3Laravel Schema Builder\u7684\u57fa\u7840\u77e5\u8bc6\u3002Schema Builder\u662fLaravel\u7684\u4e00\u4e2a\u7ec4\u4ef6\uff0c\u5b83\u63d0\u4f9b\u4e86\u4e00\u79cd\u7b80\u5355\u7684\u65b9\u5f0f\u6765\u521b\u5efa\u548c\u4fee\u6539\u6570\u636e\u5e93\u8868\u683c\u7684\u7ed3\u6784\u3002\u5728\u8fd9\u91cc\uff0c\u6211\u4eec\u5c06\u4ee5MySQL\u4e3a\u4f8b\u8fdb\u884c\u6f14\u793a\u3002 \u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u7528\u6237\u8868\u683c\uff08users\uff09\uff0c\u5176\u4e2d\u6709\u4e00\u4e2a\u540d\u4e3a\u201cage\u201d\u7684\u5b57\u6bb5\uff0c\u5b83\u7684\u6570\u636e\u7c7b\u578b\u4e3a\u6574\u6570\u7c7b\u578b\uff08INT\uff09\uff0c\u73b0\u5728\u6211\u4eec\u9700\u8981\u5c06\u5176\u4fee\u6539\u4e3a\u5b57\u7b26\u4e32\u7c7b\u578b\uff08VARCHAR\uff09\u3002 \u6b65\u9aa41\uff1a\u521b\u5efa\u8fc1\u79fb\u6587\u4ef6 Laravel\u7684\u8fc1\u79fb\u6587\u4ef6\u662f\u6570\u636e\u5e93\u4e2d\u8868\u683c\u7ed3\u6784\u7684\u201c\u84dd\u672c\u201d\u3002\u6211\u4eec\u9700\u8981\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u8fc1\u79fb\u6587\u4ef6\u6765\u5b8c\u6210\u5b57\u6bb5\u7c7b\u578b\u7684\u4fee\u6539\u3002 \u4f7f\u7528Artisan\u547d\u4ee4\u884c\u5de5\u5177\uff0c\u6211\u4eec\u53ef\u4ee5\u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\uff1a php artisan make:migration modify_users_table –table=users \u767b\u5f55\u540e\u590d\u5236 \u8fd9\u4e2a\u547d\u4ee4\u5c06\u4f1a\u521b\u5efa\u4e00\u4e2a\u540d\u4e3a\u201cmodify_users_table\u201d\u7684\u65b0\u8fc1\u79fb\u6587\u4ef6\u3002\u6211\u4eec\u9700\u8981\u6253\u5f00\u8be5\u6587\u4ef6\uff0c\u5e76\u4f7f\u7528\u4e0b\u9762\u7684\u4ee3\u7801\u5728up\u65b9\u6cd5\u4e2d\u7f16\u5199\u8fc1\u79fb\u903b\u8f91\uff1a use IlluminateSupportFacadesSchema; use IlluminateDatabaseSchemaBlueprint; use IlluminateDatabaseMigrationsMigration; class ModifyUsersTable extends Migration { \/** * Run the migrations. * * @return void *\/ public function up() { Schema::table(‘users’, function (Blueprint $table) { $table->string(‘age’)->change(); }); } \/** * Reverse the migrations. […]<\/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-22340","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/22340","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=22340"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/22340\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=22340"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=22340"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=22340"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}