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LINQ's Distinct() on a particular property
...element;
}
}
}
So to find the distinct values using just the Id property, you could use:
var query = people.DistinctBy(p => p.Id);
And to use multiple properties, you can use anonymous types, which implement equality appropriately:
var query = people.DistinctBy(p => new { p.I...
how to listen to N channels? (dynamic select statement)
... the channel is closed).
You pass in an array of SelectCase structs that identify the channel to select on, the direction of the operation, and a value to send in the case of a send operation.
So you could do something like this:
cases := make([]reflect.SelectCase, len(chans))
for i, ch := range...
Spring JPA selecting specific columns
...lass like this:
public static final String FIND_PROJECTS = "SELECT projectId, projectName FROM projects";
@Query(value = FIND_PROJECTS, nativeQuery = true)
public List<Object[]> findProjects();
Note that you will have to do the mapping yourself though. It's probably easier to just use the ...
Create Django model or update if exists
I want to create a model object, like Person, if person's id doesn't not exist, or I will get that person object.
6 Answer...
Understanding REST: Verbs, error codes, and authentication
... another collection".
POST: Create a new entry in the collection where the ID is assigned automatically by the collection. The ID created is usually included as part of the data returned by this operation.
DELETE: Meaning defined as "delete the entire collection".
When dealing with a Member URI ...
How to get the full path of running process?
...ccess is denied on line string fullPath = process.Modules[0].FileName; Any idea please?
– Sami
Mar 4 '13 at 20:14
7
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How to enter in a Docker container already running with a new TTY
...le to access the container from another shell in order to "poke around" inside it and examine the files. At the moment, if I attach to the container, I am left looking at the Apache daemon and cannot run any commands.
...
How to make a element expand or contract to its parent container?
...r, it's the size of your drawing. Define your viewBox to be 100 units in width, then define your rect to be 10 units. After that, however large you scale the SVG, the rect will be 10% the width of the image.
share
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SQLAlchemy: how to filter date field?
...
@rippleslash: you are right, and ideally one should use the proper data type for parameters. However all databases understand also the ISO 8601 format for dates, which also happens to be lexicographical order. For this reason for simple examples i generally ...
Gray out image with CSS?
...set that to be gray (change the alpha to get the effect).
html:
<div id="wrapper">
<img id="myImage" src="something.jpg" />
</div>
css:
#myImage {
opacity: 0.4;
filter: alpha(opacity=40); /* msie */
}
/* or */
#wrapper {
opacity: 0.4;
filter: alpha(opacit...