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How to solve the “failed to lazily initialize a collection of role” Hibernate exception
...ee all Comments every time you retrieve a Topic then change your field mapping for comments to:
@OneToMany(fetch = FetchType.EAGER, mappedBy = "topic", cascade = CascadeType.ALL)
private Collection<Comment> comments = new LinkedHashSet<Comment>();
Collections are lazy-loaded by defaul...
Transmitting newline character “\n”
Given the following URL (working, try it!)
4 Answers
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Strange \n in base64 encoded string in Ruby
The inbuilt Base64 library in Ruby is adding some '\n's. I'm unable to find out the reason. For this special example:
6 Ans...
Read the package name of an Android APK
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aapt dump badging <path-to-apk> | grep package:\ name
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How do I Convert DateTime.now to UTC in Ruby?
If I have d = DateTime.now , how do I convert 'd' into UTC (with the appropriate date)?
7 Answers
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How can I map True/False to 1/0 in a Pandas DataFrame?
I have a column in python pandas DataFrame that has boolean True/False values, but for further calculations I need 1/0 representation. Is there a quick pandas/numpy way to do that?
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Getting the encoding of a Postgres database
I have a database, and I need to know the default encoding for the database. I want to get it from the command line.
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Force to open “Save As…” popup open at text link click for PDF in HTML
I have some big size PDF catalogs at my website, and I need to link these as download. When I googled, I found such a thing noted below. It should open the " Save As... " popup at link click...
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What are Bearer Tokens and token_type in OAuth 2?
I'm trying to implement the Resource Owner & Password Credentials flow from the OAuth 2 spec. I'm having trouble understanding the token_type value that gets sent back with a valid response. In the spec all the examples show "token_type":"example" but says it should be
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Write string to output stream
I have several output listeners that are implementing OutputStream.
It can be either a PrintStream writing to stdout or to a File, or it can be writing to memory or any other output destination; therefore, I specified OutputStream as (an) argument in the method.
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