How can I sort an object based on a property when that property contains special characters such as ä,ü,ö in angularjs using orderBy?
For example if I sort the object users based on the name property,
$scope.users = [
{name:'A', value:'1'},
{name:'B', value:'2'},
{name:'Ä', value:'3'},
{name:'Ü', value:'4'},
{name:'U', value:'5'}
];
it should return:
{name:'A', value:'1'},
{name:'Ä', value:'3'},
{name:'B', value:'2'},
{name:'U', value:'5'},
{name:'Ü', value:'4'}
Sort order is determined doing a lexicographical sort by comparing Unicode (z: U+005A comes before e: U+0065).
Have a look at this article which presents two different solutions to your problem.
Related
I have solved the issue now, thanks for your help. I shouldn't have tried to save arrays with UITextViews, but I should have saved their text as strings instead. Here was the original question:
I have tried a lot, and googled a lot, but I can't solve this problem on my own. Whenever I try to save an array in userdefaults, it just is not working. I get the following error:
Thread 1: "Attempt to insert non-property list object (\n "<UITextView: 0x14001f800; frame = (0 0; 355 180); text = 'D'; clipsToBounds = YES; gestureRecognizers = <NSArray: 0x600003f01d10>; layer = <CALayer: 0x6000031c83e0>; contentOffset: {0, 0}; contentSize: {355, 30}; adjustedContentInset: {0, 0, 0, 0}>"\n) for key content"
I don't know what a non-property list object is. And I do not know how to solve the problem. Below is the lines of code that do not work.
var contentList: [Any] = []
let cl = defaults.array(forKey: "content")!
if cl.count != 0{
contentList += cl
}
contentList.append(label)
defaults.setValue(contentList, forKey: "content")
If I take out the last line of code by turning it into a comment everything runs just fine. How should I replace that line of code? I essentially want to save an array of UITextViews and make it larger every time I call a fucntion (this code is part of a larger function). The reason why I have created another two lists (cl and contentList) is that it helps me with a problem down the line. What I cannot understand however, is why the last line of code doesn't work. If anyone has any ideas, please help me, it would be much appreciated.
Use only String as stated in comments :
var contentList: [String] = []
let cl = defaults.array(forKey: "content")!
if cl.count != 0{
contentList += cl
}
If lbText = label.text {
contentList.append(lbText)
defaults.setValue(contentList, forKey: "content")
}
You can only store a very limited list of data types into UserDefaults, commonly referred to as "property list objects" (Since property list (or plist) files will only store the same data types.
To quote the Xcode docs on UserDefaults, in the section titled "Storing Default Objects":
A default object must be a property list—that is, an instance of (or for collections, a combination of instances of) NSData, NSString, NSNumber, NSDate, NSArray, or NSDictionary [or Data, String, NSNumber, Date, Array, or Dictionary types in Swift.] If you want to store any other type of object, you should typically archive it to create an instance of Data.
(I added the equivalent Swift types to the above quote in square brackets, since it looks like Apple hasn't updated it for Swift.)
That's worded a little awkwardly. The idea is that you can only store data of the types listed. Because the Array and Dictionary types are "container" types, you can store any combination of arrays and dictionaries that contain combinations of any of the above types. For example, you can store an array that contains a dictionary, 3 dates, 2 floats, a Double, some Data, and 2 arrays, and those dictionaries and arrays can contain other dictionaries and/or arrays.)
It is almost always wrong to archive UIView objects like UITextViews. You should save the text properties of your text views instead.
If you want to manage a vertical stack of UITextView objects, I suggest adding a vertical stack view to your user interface, and then writing code that adds or removes UITextView subviews to your stack view. You should be able to find plenty of examples of adding and removing objects from stack views online. (It's really easy.)
If you want to manage a scrolling list of feeds of arbitrary length, you might want to use a table view or collection view instead. Those require that you set up a data model and implement a "data source". That takes a little practice to get right, but is very powerful.
I have a few documents in a mongoDB that have the following structure
In a API web application that I am developing with spring boot I have to code the following query. I can receive a voltageLevelCode to filter register that will contains this voltage level code in the array (That it is easy) but the problem is that i can also receive a voltageLevelCode and a Type, so in this case I have to filter documents that will contains this voltage level code in the array and also WITHIN this voltage level code filter the ones that contains this type (But remember, the type within the voltage level)
I have been trying to write the query but I dont know how to dynamically set the index to filter the types within this voltage level. Something like:
{"voltageLevel.<TheIndexByTheDefinenVoltageLevelCode>.types" : "X" }
Example:
public List<MyClassRepresenting> findByFilter(String type,String voltageLevelCode);
{$and: [{'voltageLevel.voltageLevelCode' : ?1 },{'voltageLevel.<HowTogetIndexForSelectingVoltageLevelCode>.types' : ?2}]}
In this case depending on the tensionLevel received the type parameter must filter according to types within this tensionLevel
Same happens to me with another query. In SQL the equivalent is the SELECT within another SELECT to select the sub registers but no idea about how to do it in mongo.
When asking a question on stackoverflow, it's always interesting to include what you already tried.
I think what you need is a simple $elemMatch:
db.mycoll.find(
{ voltageLevel: { $elemMatch: { voltageLevelCode: "MT", types: "E" } } }
)
Is there a way to remove a number from an attibute array in an update? For example, if I want to update all of an alchy's booze stashes if he runs out of a particular type of booze:
Alchy has_many :stashes
Stash.available_booze_types = [] (filled with booze.ids)
Booze is also a class
#booze.id = 7
if #booze.is_all_gone
#alchy.stashes.update(available_booze_types: "remove #booze.id")
end
update: #booze.id may or may not be present in the available_booze_types array
... so if #booze.id was in any of the Alchy.stash instances (in the available_booze_types attribute array), it would be removed.
I think you can do what you want in the following way:
if #booze.is_all_gone
#alchy.stashes.each do |stash|
stash.available_booze_types.delete(#booze.id)
end
end
However, it looks to me like there are better ways to do what you are trying to do. Rails gives you something like that array by using relations. Also, the data in the array will be lost if you reset the app (if as I understand available_booze_types is an attribute which is not stored in a database). If your application is correctly set up (an stash has many boozes), an scope like the following in Stash class seems to me like the correct approach:
scope :available_boozes, -> { joins(:boozes).where("number > ?", 0) }
You can use it in the following way:
#alchy.stashes.available_boozes
which would only return the ones that are available.
I extracted from a previous response an Object of tuple with the following regex :
.check(regex(""""idSc":(.{1,8}),"pasTemps":."codePasTemps":(.),"""").ofType[(String,String)].findAll.saveAs ("OBJECTS1"))
So I get my object :
OBJECTS1 -> List((1657751,2), (1658105,2), (4557378,2), (1657750,1), (916,1), (917,2), (1658068,1), (1658069,2), (4557379,2), (1658082,1), (4557367,1), (4557368,1), (1660865,2), (1660866,2), (1658122,1), (921,1), (922,2), (923,2), (1660875,1), (1660876,2), (1660877,2), (1658300,1), (1658301,1), (1658302,1), (1658309,1), (1658310,1), (2996562,1), (4638455,1))
After that I did a Foreach and need to extract every couple to add them in next requests So we tried :
.foreach("${OBJECTS1}", "couple") {
exec(http("request_foreach47"
.get("/ctr/web/api/seriegraph/bydates/${couple(0)}/${couple(1)}/1552863600000/1554191743799")
.headers(headers_27))
}
But I get the message : named 'couple' does not support index access
I also though that to use 2 regex on the couple to extract both part could work but I haven't found any way to use a regex on a session variable. (Even if its not needed for this case but possible im really interessed to learn how as it could be usefull)
If would be really thankfull if you could provided me help. (Im using Gatling 2 but can,'t use a more recent version as its for work and others scripts have been develloped with Gatling2)
each "couple" is a scala tuple which can't be indexed into like a collection. Fortunately the gatling EL has a function that handles tuples.
so instead of
.get("/ctr/web/api/seriegraph/bydates/${couple(0)}/${couple(1)}/1552863600000/1554191743799")
you can use
.get("/ctr/web/api/seriegraph/bydates/${couple._1}/${couple._2}/1552863600000/1554191743799")
I need to construct a logical query with a repeated property and can't get it to work.
I have a list object with topics.
topics = [u'string1', u'string2', ...]
I have a query object:
videos = Video.query()
videos.count()
=> 19
topics is a repeated string property
class Video
topics = ndb.StringProperty(repeated=True)
I want to return videos that have a topic string1 OR string2. I also don't know the length of the list object before or I could just construct the query the long way with logical operators.
I tried doing this like the documentation suggests
videos.filter( Video.topics.IN([topics]) )
but that throws the error that IN expected a string not a list object.
How do I do this?
Looks like topics is already a list. So you need to pass it without another list around it:
videos.filter( Video.topics.IN(topics) )
For an arry of topics, you can use:
Video.query(Video.topics.IN(topics))
Or for a single string:
Video.query(Video.topics == topic)
source: https://cloud.google.com/appengine/docs/standard/python/ndb/queries