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MongoDB, remove object from array
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try..
db.mycollection.update(
{'_id': ObjectId("5150a1199fac0e6910000002")},
{ $pull: { "items" : { id: 23 } } },
false,
true
);
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Relational table naming convention [closed]
...d (as opposed to pre-1970's Record Filing Systems [characterised by Record IDs which are implemented in an SQL database container for convenience):
the tables are the Subjects of the database, thus they are nouns, again, singular
the relationships between the tables are the Actions that take place...
On a CSS hover event, can I change another div's styling? [duplicate]
When I hover over a div or class with an id of "a", can I get the background color of a div or class with the id of "b" to change?
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AJAX Mailchimp signup form integration
...;form action="http://xxxxx.us#.list-manage1.com/subscribe/post?u=xxxxx&id=xxxx" method="post" ... >
change it to look something like this
<form action="http://xxxxx.us#.list-manage1.com/subscribe/post-json?u=xxxxx&id=xxxx&c=?" method="get" ... >
Mail Chimp will return a jso...
Validate uniqueness of multiple columns
Is there a rails-way way to validate that an actual record is unique and not just a column? For example, a friendship model / table should not be able to have multiple identical records like:
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What is the easiest way to duplicate an activerecord record?
...record record, changing a single field in the process (in addition to the id ). What is the simplest way to accomplish this?
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How to add Google Analytics Tracking ID to GitHub Pages
... but I am full of doubts right now about adding Google Analytics Tracking ID to GitHub page .
7 Answers
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Automatically deleting related rows in Laravel (Eloquent ORM)
...p...
});
}
}
You should probably also put the whole thing inside a transaction, to ensure the referential integrity..
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How to set Default Controller in asp.net MVC 4 & MVC 5
...MapRoute(
"Default", // Route name
"{controller}/{action}/{id}", // URL with parameters*
new { controller = "Home", action = "Index",
id = UrlParameter.Optional }
);
as the default landing page. You can change that to be any route you wish.
routes.MapRoute(
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How to change spinner text size and text color?
In my Android application, I am using spinner, and I have loaded data from the SQLite database into the spinner, and it's working properly. Here is the code for that.
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