Named parameters enable you to specify an argument for a particular parameter by associating the argument with the parameter's name rather than with the parameter's position in the parameter list.
Questions tagged [named-parameters]
371 questions
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1 answer
CallableStatement setInt named parameter exception
I am trying to call a stored procedure by parameter name:
int processId = 1;
CallableStatement stmt = conn.prepareCall("{call get_process_log_latest(?)}");
stmt.setInt("process_id", processId);
But setInt() throws a…
plantbeard
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3 answers
named parameter passing multiple times
I was wondering if there is a best practice or a convention for this kind of "chained" named parameter. I am trying to pass the first variable d to bar through foo. It is kind of awkward to do it this way and I believe there should be a smarter way…
Bill Cheng
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2 answers
sql - return a row of constant values if row does not exist
I want to be able to return a row of none, none, 0 if no row is returned from query. I have this SQL:
select first, last, count(address)
from employee
where last in ('james', 'smith', 'hankers')
group by first, last
union all
select 'none', 'none',…
qollers
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0 answers
When capturing Django named groups from a URL, how not to decode them?
I have the following url pattern defined (simplified for clarity) that captures the asset key (an arbitrary string) from a url:
url(r'^assets/(?P.+)$', views.AssetDetail.as_view())
And my view is defined like this:
def get(self, request,…
Cloud Artisans
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1 answer
Closure with keyword arguments named after parameters in Python 2.7
I need to declare a funktion dynamically at runtime that has an arbitrary number of named arguments (keywords), so that a different library can call this function with a dictionary as arguments. Here is an example of what I need:
def…
RunOrVeith
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1 answer
Yii2: How do you use named parameters in console commands?
How can I write the console command yii controller/action --param1=something --param2=anything and retrieve those named parameters in the action?
TheStoryCoder
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How can I configure a H2 database connection using spring to get scrollable result sets?
I am using a H2 database for reading data. I was configuring the connection with spring:
manuelvigarcia
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Is there a neat (pythonic?) way to use named parameter defaults in Python given a condition?
I have a function with some named parameters, and a dictionary that contains keys with those names, as well as some other keys. I want to call the function with values from the dictionary.
I can't use **data because Python will raise TypeError:…
Lee Netherton
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How to provide optional parameters in Go?
I'm coming from a Node.js background, and there a typical pattern is to have a function which takes an options object, i.e. an object where you set properties for optional parameters, such as:
foo({
bar: 23,
baz: 42
});
This is JavaScript's…
Golo Roden
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Force specific function signatures
I just caught myself writing code like this:
def register(self, *, # * enforces keyword-only parameters
key_value_container:dict=None, # legal parameter set #1
key:str=None, value=None): # legal parameter set…
frans
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1 answer
Calling query having multiple IN Clause from JAVA
This query runs fine from SQL Developer : select * from MYTABLE where (field1, field2) IN (('A', '1'), ('B','2'), ('C','3')) ;
But when I try to call it from java I am getting exception.
public List callDB(List sourceAndIdList) {
…
Zeeshan
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2 answers
Swift function Parameter: Name and Object type
I have a question regarding the syntax of function parameters. Take this function for example:
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell{
//code goes here
}
In the function…
Jay Patel
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1 answer
Multiple Parameter Sets Not Working
I'm trying to write a failure simple script utilizing parameter sets to simplify input and validation. I'd like the script to look like this:
.\zipandrotate.ps1 -Zip [-AllButDays ] -Rotate [-MaxRetentionDays ]
-Zip and therefore…
Mr. Lost IT Guy
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Swift: Why no labeled arguments in this situation?
For this code
let documentsPath = NSSearchPathForDirectoriesInDomains(.DocumentDirectory, .UserDomainMask, true)[0] as! NSString
I will have forgot what the third argument stands for, soon.
For some reason Swift (2.0) doesn't allow me to label the…
fiship
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1 answer
Using named arguments with variable length un-named arguments in Python
I apologize if this question has already been asked/answered, I would have expected that to be the case but was unable to find any related questions...
I'd like to create a python function that takes two mandatory arguments, one named argument, and…
sfletche
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