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Why is git push gerrit HEAD:refs/for/master used instead of git push origin master
...(in the diagram, "Pending Changes"). Gerrit doesn't actually have a branch called <BRANCH>; it lies to the git client.
Internally, Gerrit has its own implementation for the Git and SSH stacks. This allows it to provide the "magical" refs/for/<BRANCH> refs.
When a push request is r...
Mongodb Explain for Aggregation framework
...rations
explain:true
db.collection.aggregate([
{ $project : { "Tags._id" : 1 }},
{ $unwind : "$Tags" },
{ $match: {$or: [{"Tags._id":"tag1"},{"Tags._id":"tag2"}]}},
{ $group: {
_id : "$_id",
count: { $sum:1 }
}},
{$sort: {"count":-1}}
],
{
explain:...
Reference list item by index within Django template?
...ave an array in which I'm not sure of the index of my desired value {% for id in article_details.heading.contents.article_ids %} {% if id.type == 'DOI' %} {{ article_details.heading.contents.article_ids.forloop.counter0.value }} {% endif %} {% endfor %}
–...
Rails filtering array of objects by attribute value
...
As @Vik's solution is pretty much ideal, I'll just add that in binary cases, you could use a 'partition' function to make things sweet. ruby-doc.org/core-1.9.3/Enumerable.html#method-i-partition
– Vlad
Jun 20 '16 at 21:...
MySQL Cannot drop index needed in a foreign key constraint
...the index: ALTER TABLE mytable ADD CONSTRAINT mytable_ibfk_1 FOREIGN KEY (AID) REFERENCES mytable_a (ID) ON DELETE CASCADE;
– laffuste
Feb 11 '14 at 7:49
8
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Is there any way to use a numeric type as an object key?
...finition of property. Eg, myArray.hasOwnProperty("1") yields true. Semantically, this property can also be considered an "element" by virtue of having a numeric key, but there is nothing further that distinguishes an array "element" from an array property. Read the spec. If you still disagree, kind...
SQL/mysql - Select distinct/UNIQUE but return all columns?
...ue.. Any other aggregate function available to address boolean – signonsridhar 6 mins ago. Sum(dynamic) changed false to 1
– signonsridhar
Aug 22 '16 at 2:00
...
create a trusted self-signed SSL cert for localhost (for use with Express/Node)
...nd it will work. Chrome doesn't:
Step 1. in your backend, create a folder called security. we will work inside it.
Step 2. create a request config file named req.cnf with the following content (credit goes to: @Anshul)
req.cnf :
[req]
distinguished_name = req_distinguished_name
x509_extensions =...
List of zeros in python [duplicate]
...tertools.repeat and [0] * n will create lists whose elements refer to same id. This is not a problem with immutable objects like integers or strings but if you try to create list of mutable objects like a list of lists ([[]] * n) then all the elements will refer to the same object.
a = [[]] * 10
a...
TSQL Pivot without aggregate function
... = that value..
In this case, you could also self join 5 times on customerid, filter by dbColumnName per table reference. It may work out better.
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