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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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Unable to open project… cannot be opened because the project file cannot be parsed
... THANK YOU. This works. In my case it wasn't ".mine" or ".r" but said something else... Ctrl-F for "===" to find the place.
– ck_
Oct 31 '12 at 17:22
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Clone private git repo with dockerfile
...# to retrieve this private key file from the corresponding image layer
ADD id_rsa /root/.ssh/id_rsa
# Create known_hosts
RUN touch /root/.ssh/known_hosts
# Add bitbuckets key
RUN ssh-keyscan bitbucket.org >> /root/.ssh/known_hosts
# Clone the conf files into the docker container
RUN git clon...
How should equals and hashcode be implemented when using JPA and Hibernate
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Hibernate has a nice and long description of when / how to override equals() / hashCode() in documentation
The gist of it is you only need to worry about it if your entity will be part of a Set or if you're going to be detaching / attaching its instances. The latter is not that common. T...
Separate Back Stack for each tab in Android using Fragments
I'm trying to implement tabs for navigation in an Android app. Since TabActivity and ActivityGroup are deprecated I would like to implement it using Fragments instead.
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Getting the location from an IP address [duplicate]
...good and reliable way to do this in PHP? I am using JavaScript for client-side scripting, PHP for server-side scripting, and MySQL for the database.
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Execute Insert command and return inserted Id in Sql
...table using C# in MVC 4. Actually, I want to insert values and return the 'ID' of last inserted record. I use the following code.
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How to return an empty ActiveRecord relation?
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A more portable solution that doesn't require an "id" column and doesn't assume there won't be a row with an id of 0:
scope :none, where("1 = 0")
I'm still looking for a more "correct" way.
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How to parse JSON in Scala using standard Scala classes?
...ult = JSON.parseFull(jsonStr)
result match {
// Matches if jsonStr is valid JSON and represents a Map of Strings to Any
case Some(map: Map[String, Any]) => println(map)
case None => println("Parsing failed")
case other => println("Unknown data structure: " + other)
}
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Append text to input field
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$('#input-field-id').val($('#input-field-id').val() + 'more text');
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<input id="input-field-id" />
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