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DBIx :: Class查找或创建对象

[英]DBIx::Class Find or Create objects

原文 2016-02-13 19:20:37 1 1 perl/ dbix-class

I'm using DBIx::Class to model the following: 我正在使用DBIx :: Class建模以下内容：

A Recipe with many Tags . 有许多Tags的Recipe 。 The Tag is shared with other Recipe objects. Tag与其他Recipe对象共享。

While creating a Recipe object I want to create a set of Tag objects and associate them with the newly created Recipe object. 创建Recipe对象时，我想创建一组Tag对象，并将它们与新创建的Recipe对象相关联。 (The user enters a list of tags and I only have the name of the tag to go with) （用户输入标签列表，而我只有要使用的标签名称）

For the Tags I could iterate over the list and find one that matches the user entered name or create a new object manually. 对于标签，我可以遍历该列表并找到与用户输入名称匹配的标签，或者手动创建一个新对象。

I couldn't find a documented findOrCreate type method in DBIx::Class. 我在DBIx :: Class中找不到记录的findOrCreate类型方法。 Any suggestions ? 有什么建议么？

1 个解决方案

如果您有名称的键，则可以使用find_or_create 。

新建和创建时出现DBIx :: Class错误 - DBIx::Class Error on New and Create

在Perl中自动生成DBIx :: Class ORM中的对象 - Auto Generate Objects in DBIx::Class ORM in Perl

DBIx：Class - 找不到模型的来源 - DBIx:Class - cannot find source for model

使用DBIx :: Class :: ResultSet的find_or_create方法时如何避免竞争条件？ - How to avoid race conditions when using the find_or_create method of DBIx::Class::ResultSet?

DBIx :: Class可以用来创建表吗？ - Can DBIx::Class be used to create tables?

构造DBIx :: Class对象和相关对象，但稍后保存 - Construct DBIx::Class object and related objects but save later

DBIx::Class 错误“找不到 XXX 的来源” - DBIx::Class error "Can't find source for XXX"

当期望值时，DBIx :: class find函数返回哈希 - DBIx::class find function returns hash when value expected

DBIx::Class 尝试使用 ->create() 时出现未定义值异常 - DBIx::Class undefined value exception when trying to use ->create()

为什么DBIx :: Class不能创建多对多访问器？ - Why does DBIx::Class not create many-to-many accessors?

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相关问题 新建和创建时出现DBIx :: Class错误 - DBIx::Class Error on New and Create 在Perl中自动生成DBIx :: Class ORM中的对象 - Auto Generate Objects in DBIx::Class ORM in Perl DBIx：Class - 找不到模型的来源 - DBIx:Class - cannot find source for model 使用DBIx :: Class :: ResultSet的find_or_create方法时如何避免竞争条件？ - How to avoid race conditions when using the find_or_create method of DBIx::Class::ResultSet? DBIx :: Class可以用来创建表吗？ - Can DBIx::Class be used to create tables? 构造DBIx :: Class对象和相关对象，但稍后保存 - Construct DBIx::Class object and related objects but save later DBIx::Class 错误“找不到 XXX 的来源” - DBIx::Class error "Can't find source for XXX" 当期望值时，DBIx :: class find函数返回哈希 - DBIx::class find function returns hash when value expected DBIx::Class 尝试使用 ->create() 时出现未定义值异常 - DBIx::Class undefined value exception when trying to use ->create() 为什么DBIx :: Class不能创建多对多访问器？ - Why does DBIx::Class not create many-to-many accessors?

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