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How to implement has_many :through relationships with Mongoid and mongodb?
...ude Mongoid::Document
has_and_belongs_to_many :physicians
end
In other words you would eliminate the join table and it would have a similar effect to has_many :through in terms of access to the 'other side'. But in your case thats probably not appropriate because your join table is an Appointmen...
What are the best PHP input sanitizing functions?
...
Try WHERE my_field = two words (without quotes) to get the syntax error. Your example is bad because it doesn't need quotes neither escaping, just a numeric check. Also I didn't say the quotes were useless. I said everyone use them so this is not the...
What is the difference between graph search and tree search?
...
In simple words, tree does not contain cycles and where as graph can. So when we do search, we should avoid cycles in graphs so that we don't get into infinite loops.
Another aspect is tree will typically have some kind of topological...
What is the most efficient/elegant way to parse a flat table into a tree?
...g:
+----+
| id |
+----+
| 1 |
| 2 |
| 4 |
| 6 |
+----+
In other words, nodes 3 and 5 are excluded, because they're part of a separate hierarchy, not descending from node 1.
Re: comment from e-satis about immediate children (or immediate parent). You can add a "path_length" column to t...
How do arrays in C# partially implement IList?
...ion declares Count, and it would be even more confusing if a type with the word "collection" in it didn't use Count :). There are always trade-offs in making these decisions.
– dlev
Jun 22 '12 at 20:14
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Why should I not include cpp files and instead use a header?
...
This is ( definite ) the best wording to date that I have heard or contemplated. Justin Case, an accomplished beginner, attained a project clocking in at one million keystrokes, not shipped yet and a commendable "first project" that is seeing the light of...
How to create a MySQL hierarchical recursive query
...s not in my case... so let me know your view on the same... So, in simple words I need a query to handle 'n' hirerachy levels where 'n' is not known.....
– Tarun Parswani
Nov 26 '13 at 11:48
...
Difference between DateTime and Time in Ruby
...teger is used.
(http://www.ruby-doc.org/core-2.1.0/Time.html)
In other words, as far as I understand, DateTime no longer covers a wider range of potential values than Time.
In addition, two previously unmentioned restrictions of DateTime should probably be noted:
DateTime does not consider ...
What is Cache-Control: private?
...t showing the correct content, not securing content.
This usage of the word private only controls where the response may be cached, and cannot ensure the privacy of the message content.
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The new keyword “auto”; When should it be used to declare a variable type? [duplicate]
...ompiler infer the type of the expressions.
So the bottomline is: the keyword auto might increase or decrease clarity and readability of your code, depending on the context. If the context makes it clear what type it is, or at least how it should be used (in case of standard container iterator) or...