having the class A and the class B that inherits from A, and class C to which A has a ratio of 1: M respectively (A, C), when creating an object of the class B and trying to access form $B->C->attribu
I have mongoid setup in my rails3 app, and have created 2 models. One model is user, and the other mod开发者_开发技巧el is article.
SELECT t.tag_name FROM tags t JOIN resource_tags rt ON rt.tag_id = t.tag_id JOIN resource r ON r.resource_id = rt.resource_id
class Pinyin(models.Model): pinyinWord = models.CharField(max_length=200) englishWord = models.CharField(max_length=1000)
Access Database table contacts -------------- id surname name table relations --------------- contact_id relation_id
I\'m not sure this is ev开发者_如何学JAVAen possible, but let\'s see if one of you comes up with a solution. This is more or less about code quality in terms of readability and not an actual problem b
I cannot figure out how I can setup a form that will create a new Study while also creating the related StudySubject and the Facility. The user_id, facility_id and study_subject_id have to be availabl
I have a tournament website with CakePHP, where i need开发者_开发知识库s to manage a condition like below details:
I\'d like the exact same thing as django.contrib.contenttypes.generic.GenericForeignKey, but OneToOne instead of ForeignKey.I thought an easy (albei开发者_C百科t marginally inelegant) workaround was t
Has there been any research in the field of data-mining regarding classifying data which has a one to many relationship?
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