How To Format And Bind Multiple SimpleObjectProperties<LocalDate> To A Label? - kotlin

I am trying to create a calendar view in which there are events displayed with start and end times on one label. Something like:
2:30pm - 4:30pm
My model has a SimpleObjectProperty<LocalTime> for each of these times. I know that I could concatenate these by doing something like:
label(Bindings.concat(model.startTime, " - ", model.endTime))
But I would still need formatting for each time. Knowing how to do this would certainly help me in the future with other equally complex binding transformations. Or would it just be easier to attach listeners to each time property that would update the label text?

I think I found my own answer, but anyone can feel free to let me know if this is good practice or not.
root {
...
val timeFormat = DateTimeFormatter.ofPattern("h:mma")
label(stringBinding(model.startTime, model.endTime) {
val startTime = model.startTime.value
val endTime = model.endTime.value
"${startTime.format(timeFormat)} - ${endTime.format(timeFormat)}"
})
...
}

Related

Expo Calendar - Using the recurrenceRule for createEventAsync()

I'm struggling with some of the formatting for parameters inside the recurrenceRule when trying to create a new event with Expo Calendar. I can't seem to find any robust recurrence examples in the docs or anywhere else for that matter. One specific thing I'm struggling is daysOfTheWeek, where I'm trying to pass multiple days but I'm not even sure if you can.
Does anyone have a good working example of the recurrenceRule in action?
After struggling with this myself I found that if you look up types in your Calendar.d.ts file it should give you the required structure of the recurrenceRule.
export declare type RecurrenceRule = {
frequency: string
interval?: number // #default 1
endDate?: string | Date
occurrence?: number
daysOfTheWeek?: DaysOfTheWeek[]
daysOfTheMonth?: number[]
monthsOfTheYear?: MonthOfTheYear[]
weeksOfTheYear?: number[]
daysOfTheYear?: number[]
setPositions?: number[]
};
So if your use case is like mine and you just want the event to occur only once something like this will work: recurrenceRule: {frequency: 'DAILY', occurrence: 1} I think. Expo-documentation says recurrence rule can be set to null, but this throws an error. Hope this helps!

How to format Date received from Element-UI

I'm making use of the datepicker from Element Ui where the user can select a range in dates. When the user fills in the datepicker, this is what I get back: ['2018-01', '2019-02'] . So just an array with two String elements. NOT a Date() object.
When dynamically outputting this to the user, I would like to show it as: January 2018 - February 2019
I got it somewhat working in my project but the code just really sucks and also doesn't work properly either. Checkout this gif of my current project and somewhat desired result. I was wondering if someone knows a good and easy way of achieving my desired result without too much hassle. I cannot use methods like toLocaleDateString() because it isn't a Date() object. I've got my code working in a Codesandbox. If any if you guys knows a solution feel free to edit the listed Codesandbox, I would highly highly appreciate it!
In the Codesandbox I got a computed property formateDate. The basic idea of the computed property is to cut the elements of the array I get back from the datepicker before and after the - effectively giving me the first & second month and first & second year. That data I store in these variables:
let monthOne;
let monthTwo;
let yearOne;
let yearTwo;
Since I get the months back as '01' and '02' for example, I created an array of objects to transform the '01' and '02' to January and February with a for loop. I then store the result in a new variable with:
displayDate = monthOne + ' ' + yearOne + ' - ' + monthTwo + ' ' + yearTwo;
Lastly, I tried to store that result into the timeperiodDisplayString at the correct index in the experience array of objects. Anyway, I'm probably overcomplicating this way to hard so I would REALLY appreciate any help with this.
Maybe you could map over the result from the datepicker component to create an array of Date objects. So you can use toLocaleDateString()
Something like this should work:
['2018-01', '2019-02'].map((date) => {
const split = date.split('-');
return new Date(split[0], +split[1] - 1);
});
You can use parse() function from javascript.
var d = Date.parse("2019-01");
console.log(new Date(d));

Talend - Dynamic Column Name (Enterprise version)

Can anyone help me solve this case?
I have much file to process, two of them is like on below screenshot with my expected output.
I use this transformation on Talend: tFileList---tInputExcel---tUnpivotRow---tMap---tPostgresqlOutput
The output is different to my expected output. This is the screenshot of the output
Can anyone help me to reach my expected output which is like on my first picture above?
This will be pretty hard. You'd have to handle that as a text file. And whenever you found "store" value in the first column you'd update your type with the value.
Here's how I'd start:
Basically tJavaFlex begin piece would contain:
String col1Type
String colNType
main part:
if input_row.col0.equalsIgnoreCase("store") {
col1Type = input_row.col1;
col2Type = input_row.col2;
colNType = input_row.colN;
continue; /*(so this record will be Ignored for the rest of the components!)*/
}
output_row.col1Type = col1Type;
output_row.col1Value = Integer.valueOf(input_row.col1);
/*coz we have text and need numbers :( */
I think using propagate results will save you from writing down all the other fields.
And from here it would be very simple as you have key-type-value-type-value-type-value results.

How can I find percent complete in ActiveRecord?

I can't seem to find an elegant way of doing this.
But let's say my model Projects has many Tasks.
Each task has a boolean field for complete.
So if I have 10 tasks and 4 are "complete" and 6 are not, then I am only 40% complete.
Is there a slick way of doing this in a scope so that the SQL is lean?
I already have two scopes like:
scope :complete, lambda {
where("tasks.complete = true")
}
scope :not_complete, lambda {
where("tasks.complete = false")
}
Thanks for any tips.
I would think that since you're looking to get a final value out of this a model method would be the best approach. (scopes should return a Relation in order to support chaining) You could use these scopes to return the percent complete, something along the lines of:
def percent_complete
not_complete.size.to_f / complete.size.to_f
end
Or if you require big_decimal and big_decimail/util in your model you could use to_d to get decimal division. Then in your view all you have to do is #project.percent_complete

How do I use Linq-to-sql to iterate db records?

I asked on SO a few days ago what was the simplest quickest way to build a wrapper around a recently completed database. I took the advice and used sqlmetal to build linq classes around my database design.
Now I am having two problems. One, I don't know LINQ. And, two, I have been shocked to realize how hard it is to learn. I have a book on LINQ (Linq In Action by Manning) and it has helped some but at the end of the day it is going to take me a couple of weeks to get traction and I need to make some progress on my project today.
So, I am looking for some help getting started.
Click HERE To see my simple database schema.
Click HERE to see the vb class that was generated for the schema.
My needs are simple. I have a console app. The main table is the SupplyModel table. Most of the other tables are child tables of the SupplyModel table.
I want to iterate through each of Supply Model records. I want to grab the data for a supply model and then DoStuff with the data. And I also need to iterate through the child records, for each supply model, for example the NumberedInventories and DoStuff with that as well.
I need help doing this in VB rather than C# if possible. I am not looking for the whole solution...if you can supply a couple of code-snippets to get me on my way that would be great.
Thanks for your help.
EDIT
For the record I have already written the following code...
Dim _dataContext As DataContext = New DataContext(ConnectionStrings("SupplyModelDB").ConnectionString)
Dim SMs As Table(Of Data.SupplyModels) = _dataContext.GetTable(Of Data.SupplyModels)()
Dim query = From sm In SMs Where sm.SupplyModelID = 1 Select sm
This code is working...I have a query object and I can use ObjectDumper to enumerate and dump the data...but I still can't figure it out...because ObjectDumper uses reflection and other language constructs I don't get. It DOES enumerate both the parent and child data just like I want (when level=2).
PLEASE HELP...I'M stuck. Help!
Seth
in C# it would be:
var result = from s in _dataContent.SupplyModels where s.SupplyModelID==1 select s;
foreach(SupplyModel item in result)
{
// do stuff
foreach(SupplyModelChild child in item.SupplyModelChilds)
{
//do more stuff on the child
}
}
and a VB.NET version (from the Telerik code converter)
Dim result As var = From s In _dataContent.SupplyModels _
Where s.SupplyModelID = 1 _
Select s
For Each item As SupplyModel In result
' do stuff
'do more stuff on the child
For Each child As SupplyModelChild In item.SupplyModelChilds
Next
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