大约有 44,000 项符合查询结果（耗时：0.0481秒） [XML]
Converting an array of objects to ActiveRecord::Relation
...t an Array to an ActiveRecord::Relation since a Relation is just a builder for a SQL query and its methods do not operate on actual data.
However, if what you want is a relation then:
for ActiveRecord 3.x, don’t call all and instead call scoped, which will give back a Relation which represents ...
C# Entity-Framework: How can I combine a .Find and .Include on a Model Object?
...sicstore practice tutorial. I noticed something when creating the scaffold for the album manager (add delete edit).
5 Answe...
Are class names in CSS selectors case sensitive?
...itive within the ASCII range (i.e. [a-z] and [A-Z] are equivalent), except for parts that are not under the control of Selectors. The case sensitivity of document language element names, attribute names, and attribute values in selectors depends on the document language.
So, given an HTML element ...
On select change, get data attribute value
...y used attr() in my inital post, i meant data() but it returns 'undefined' for me.
– userBG
Dec 1 '11 at 17:34
6
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Sequelize.js delete query?
...
For anyone using Sequelize version 3 and above, use:
Model.destroy({
where: {
// criteria
}
})
Sequelize Documentation - Sequelize Tutorial
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How to implement a unique index on two columns in rails
... indexed. So my question is if I just can remove the indexes who were just for one column or if I have to use all three indexes:
...
Insert Update trigger how to determine if insert or update
... Update and Insert cases. How would I determine if the trigger is executed for an update or insert.
23 Answers
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Get attribute name value of
... denying that jQuery is a powerful tool, it is a really bad idea to use it for such a trivial operation as "get an element's attribute value".
Judging by the current accepted answer, I am going to assume that you were able to add an ID attribute to your element and use that to select it.
With that...
Linq code to select one item
...r if the list is empty, use FirstOrDefault which returns the default value for the element type (null for reference types):
var item = Items.FirstOrDefault(i => i.Id == 123);
if (item != null)
{
// found it
}
Single() and SingleOrDefault() can also be used, but if you are reading from a d...
Create a custom View by inflating a layout?
... Since View class has static inflate() method there is no need for LayoutInflater.from()
– outlying
Jul 22 '13 at 14:22
1
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