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Implementing Comments and Likes in database
...plugs into the whole like/tag/comment machinery.
Entity-relationship term for this is "category" (see the ERwin Methods Guide, section: "Subtype Relationships"). The category symbol is:
Assuming a user can like multiple entities, a same tag can be used for more than one entity but a comment is ...
Remove an item from array using UnderscoreJS
...e other question and undescore doesn't seem to provide any useful function for that.
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When to use EntityManager.find() vs EntityManager.getReference() with JPA
...anged = true;
query += query + "AGE = " + newAge;
}
}
So before transaction commit, JPA provider will see stateChanged flag in order to update OR NOT person entity. If no rows is updated after update statement, JPA provider will throw EntityNotFoundException according to JPA specific...
SQL Server: Filter output of sp_who2
...n easy way to filter the output of sp_who2? Say I wanted to just show rows for a certain database, for example.
12 Answers
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Android: how to handle button click
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Question 1:
Unfortunately the one in which you you say is most intuitive is the least used in Android. As I understand, you should separate your UI (XML) and computational functionality (Java Class Files). It also makes for easier debuggin...
How to set caret(cursor) position in contenteditable element (div)?
...each of the selection boundaries as a node and an offset within that node. For example, to set the caret to the fifth character of the second line of text, you'd do the following:
function setCaret() {
var el = document.getElementById("editable")
var range = document.createRange()
va...
How to select the last record of a table in SQL?
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Without any further information, which Database etc the best we can do is something like
Sql Server
SELECT TOP 1 * FROM Table ORDER BY ID DESC
MySql
SELECT * FROM Table ORDER BY ID DESC LIMIT 1
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Build vs new in Rails 3
In the Rails 3 docs , the build method for associations is described as being the same as the new method, but with the automatic assignment of the foreign key. Straight from the docs:
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What is a StoryBoard ID and how can i use this?
i'm new to IOS developing and recently started in Xcode 4.5. I saw for every viewController that i could set some identity variables including the storyboard ID. What is this and how can i use it?
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Javascript - Append HTML to container element without innerHTML
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I thought we're looking for a solution that does not use "innerHTML"
– kennydelacruz
Oct 18 '18 at 21:41
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