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Django dynamic model fields
...mic modeling. It's heavily used in the "semantic web" community where it's called a "triple" or "quad" if it includes a unique ID. However, it's unlikely to ever be as efficient as a mechanism that can dynamically create and modify SQL tables.
– Cerin
Oct 19 '1...
What do the makefile symbols $@ and $< mean?
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The $@ and $< are called automatic variables. The variable $@ represents the name of the file been created (i.e. the target) and $< represents the first prerequisite required to create the output file.
For example:
hello.o: hello.c hello.h...
搭建高可用mongodb集群（一）——配置mongodb - 大数据 & AI - 清泛网 - 专...
...r
输出日志如下，成功！
[initandlisten] MongoDB starting : pid=18285 port=27017 dbpath=/data/mongodbtest/master master=1
#日志显示主节点参数
[initandlisten] options: { dbpath: “/data/mongodbtest/master”, master: true }
……..
[initandlisten] waiting for connections ...
Can I add jars to maven 2 build classpath without installing them?
...s to this repository. The problem is in most cases this repository will reside on your local machine, so there'll be no way to resolve this dependency on any other machine. Clearly making your artifact depend on a specific machine is not a way to handle things. Otherwise this dependency will have to...
Uninstall ReSharper 4.5
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Agreed that it might be confusing as you'd typically look for ReSharper - not Jetbrains.. Not too expensive though. I'd gladly buy this on my own if me company didn't buy it for me. VS without R# is not the same..
– stiank81
Nov 10 '...
Rails: Logging the entire stack trace of an exception
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You may get your message split and unreadable because calling logger multiple times is not thread safe. While the logger itself is thread safe. Usually I join my message in one string then log it.
– Morozov
Dec 15 '15 at 10:31
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Calculate RSA key fingerprint
... am not sure how do find my RSA key fingerprint. I originally followed a guide to generate an SSH key on Linux.
14 Answers
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Getting “Skipping JaCoCo execution due to missing execution data file” upon executing JaCoCo
...s to
use syntax for late property evaluation:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<configuration>
<argLine>@{argLine} -your -extra -arguments</argLine>
</configuration>...
How to join two sets in one line without using “|”
...tely according to a simple test: a = set((1, 2, 3,)); b = set((1, 3, 4,)); id_a = id(a); a |= b; assert id_a == id(a), @jorgenkg is right - variable a is modified inline. Am I missing something?
– johndodo
Jan 7 '18 at 10:06
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What is the maven-shade-plugin used for, and why would you want to relocate Java packages?
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Thanks, that helps a lot. Is it called "shading" because it conceals the dependencies and other jars inside the uber-jar?
– nonbeing
Nov 29 '12 at 7:28
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