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How to fix Hibernate LazyInitializationException: failed to lazily initialize a collection of roles,
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Adding following property to your persistence.xml may solve your problem temporarily
<property name="hibernate.enable_lazy_load_no_trans" value="true" />
As @vlad-mihalcea said it's an antipattern and does not solve lazy initialization issue completely, initiali...
How to create a zip archive of a directory in Python?
How can I create a zip archive of a directory structure in Python?
25 Answers
25
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Python's “in” set operator
I'm a little confused about the python in operator for sets.
5 Answers
5
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Django “xxxxxx Object” display customization in admin action sidebar
...del):
def __unicode__(self):
return 'Policy: ' + self.name
On Python 3 you need to use __str__:
def __str__(self):
return 'Policy: ' + self.name
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Right HTTP status code to wrong input
... contained instructions. For example, this error condition may occur if an XML request body contains well-formed (i.e., syntactically correct), but semantically erroneous, XML instructions.
source: https://www.bennadel.com/blog/2434-http-status-codes-for-invalid-data-400-vs-422.htm
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Can't import my own modules in Python
I'm having a hard time understanding how module importing works in Python (I've never done it in any other language before either).
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Python: reload component Y imported with 'from X import Y'?
In Python, once I have imported a module X in an interpreter session using import X , and the module changes on the outside, I can reload the module with reload(X) . The changes then become available in my interpreter session.
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What are your favorite extension methods for C#? (codeplex.com/extensionoverflow)
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this mimicks pythons random.choice(seq) function. nice.
– Daren Thomas
Dec 3 '09 at 14:04
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Python Dictionary to URL Parameters
I am trying to convert a Python dictionary to a string for use as URL parameters. I am sure that there is a better, more Pythonic way of doing this. What is it?
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How do you find the row count for all your tables in Postgres
...lic')) select table_schema, table_name, (xpath('/row/c/text()', query_to_xml(format('select count(*) as c from %I.%I', table_schema, table_name), false, true, '')))[1]::text::int as rows_n from tbl ORDER BY 3 DESC;
– estani
May 14 '19 at 8:22
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