I want to return a list of elements of 'ListOfObjects' that are being referenced by 'SomeOtherObject' with it's(SomeOtherObject's) attribute satisfying the condition.
I'm trying this code:
ParentObj.ListOfObjects.select(e|e.referencingContainers.typeSelect(SomOtherObject).attr.isValid());
'ListOfObjects' extracts a list of particular objects from the 'ParentObj'.But the above code gives me nothing. Please help me out in figuring out what's wrong here.
It's because, in the above piece of code, the result of the expression inside the select returns a list and not an a boolean. To make it boolean I'd have to rewrite the code this way:
ParentObj.ListOfObjects.select(e|e.referencingContainers.typeSelect(SomOtherObject).select(el|el.attr.isValid()).size > 0);
The select inside the select along with the check for size is what made the difference there.
There is an extension to find objects that reference a specific object: org::eclipse::xtend::util::stdlib::crossref
You can also specify conditions in the same way. Here is more information about Cross References Extensions.
Related
Say I have multiple tables in {game} like {bullets}, where {bullets} has multiple tables as found below. How would I iterate through and call all the update functions contained in {game}?
--Below is a simplified example, Assume each table in {bullets} has multiple entries not just update. And that the final code must work in cases like game={bullets,coins,whatever}, each entry being of similar nature to bullets.
game={}
game.bullets={{update=function(self) end,...}, {update=function(self) end,...},...}
for obj in all(game) do
for things in all(obj) do
things:update() end end
--I'm not sure what I"m doing wrong and whether I even need a double for-loop.
--if bullets wasn't embedded in {game} it would just be:
for obj in all(bullets) do
obj:update()
end
I've also tried:
for obj in all(game.bullets) do
obj:update()
end
*correction: this works, the problem I want solved though is to make this work if I have multiple tables like {bullets} in {game}. Thus the first attempt at double iterations which failed. So rather than repeat the above as many times as I have items in {game}, I want to type a single statement.
all() isn't a standard function in Lua. Is that a helper function you found somewhere?
Hard to tell without seeing more examples, or documentation showing how it's used, with expected return values. Seems to be an iterator, similar in nature to pairs(). Possibly something like this:
for key, value in pairs( game ) do
for obj in all( value ) do
obj :update()
end
end
Sorry, but uhrm, I'd like to use regexp (actually I'd use something else but I want to do the task within a Matlab function) to pick a single row containing desired keywords within an html table.
I am using Matlab calling function regexpi (case-insensitive version of regexp), which is akin to PHP regex from what I can tell.
Ok, here's a snippet from such an html table to parse:
<tr><td>blu</td><td>value</td></tr><tr><td>findme</td><td>value</td></tr><tr><td>ble</td><td>value</td></tr>
The desired row to pick contains the word "findme".
(added:) Content of other cells and tags in the table could be anything (here "bla" is a dummy value)- the important part is the presence of "findme" and that a single line (not more) is caught (or all lines containing "findme" but such behaviour is not expected). Any paired name/value table in a wikipedia page is a good example.
I tinkered with https://regex101.com/ using whatever I could dig up at the Matlab documentation (forward/backward looking, combinations of :,> and ?), but have failed to identify a pattern that will pick just the right row (or all those that contain the keyword "findme"). The following pattern for instance will pick the text but not the entire row: <tr[^>]*>[^>]*.*?(findme).*?<\/td .
Pattern <tr[^>]*>(.*?findme.*?)<\/tr[^>]*> picks the row but is too greedy and picks preceding rows.
Note that the original task I had set out was to capture entire tables and then parse these, but the Matlab regexp-powered function I found for the task had trouble with nested tables (or I had trouble implementing it for the task).
The question is how to return a row containing desired keywords from an html table, programmatically, within a matlab function (without calling an external program)? Bonus question is how to solve the nested table issue, but maybe that's another question.
I suggest you split up the string with strsplit and use contains for the filtering, which is a lot more readable and maintainable than a regex pattern:
htmlString = ['<tr><td>blu</td><td>value</td></tr><tr><td><a',...
'href="bla">findme</a></td><td>value</td></tr><tr><td><a',...
'href="ble">ble</a></td><td>value</td></tr>'];
keyword = 'findme';
splitStrings = strsplit(htmlString,'<tr>');
desiredRow = ['<tr>' splitStrings{contains(splitStrings,keyword)}]
The output is:
<tr><td>findme</td><td>value</td></tr>
Alternatively you may also combine extractBetween and contains:
allRows = extractBetween(htmlString,'<tr>','</tr>');
desiredRow = ['<tr>' allRows{contains(allRows,keyword)} '</tr>']
If you must use regex:
regexp(htmlString,['<tr><td>[^>]+>' keyword '.*?<\/tr>'],'match')
Try this
%<td>(.*?)%sg
https://regex101.com/r/0Xq0mO/1
I've been looking for a way to query the wikipedia api based on a search string for a list of articles with the following properties:
Title
Snippet/Description
One or more images related to the article.
I also have to make the query using jsonp.
I've tried using the list=search parameter
http://en.wikipedia.org/w/api.php?action=query&list=search&prop=images&format=json&srsearch=test&srnamespace=0&srprop=snippet&srlimit=10&imlimit=1
But it seems to ignore the prop=images, I've also tried variations using the prop=imageinfo and prop=pageimages. But they all give me the same result as just using the list=search.
I've also tried action=opensearch
http://en.wikipedia.org/w/api.php?action=opensearch&search=test&limit=10&format=xml
Which gives me exactly what I want when i set format=xml, but returns a simple array of page titles when using format=json and therefore fails because of the jsonp requirement.
Is there another approach to doing this? I'd really like to solve this in a single request rather than make the first search request and then a second request for the images using titles=x|y|z
As Bergi suggested, using generators is the way to go here. Specifically what I would do:
use list=search as a generator, to get the list of articles
use prop=pageimages to get a representative image for each article
use prop=extracts to get a description for each article
The whole query could look like this:
http://en.wikipedia.org/w/api.php?format=json&action=query&generator=search&gsrnamespace=0&gsrsearch=test&gsrlimit=10&prop=pageimages|extracts&pilimit=max&exintro&explaintext&exsentences=1&exlimit=max
I've tried using the list=search parameter, but it seems to ignore the prop=images
If you want to retrieve any properties, you need to specify a list of pages for which you want to get these; e.g. by using the titles=, pageids=, or revids= parameters. You didn't send any, so you did not get a result for the prop=images.
If you did use api.php?action=query&list=search&srsearch=test&prop=images&titles=test you would have gotten the search results for test and the images of the Test page.
You can however also use the collection that the list query generates for your property query, using the list module as a generator. The query would look like
api.php?action=query&generator=search&gsrsearch=test&gsrnamespace=0&gsrprop=snippet&prop=images. Unfortunately, it does not yield the attributes that the list contained, but only used the pageids for a basic property query.
Using two queries is probably the way to go. Btw, I'd recommend to use the pageimages property, it will likely give you the best results.
I am having problem with BusinessObject Universum and the way it generates queries and consequently yielding the results.
Here is the background: mechanism that is functioning has already been implemented. I was trying to copy the SAME mechanism just to deliver a different field.
Here is the data model: http://tinypic.com/r/ng524g/8
The mechanism that functions is marked with BLUE color. The mechanism that I tried to implement and that is not functioning is marked with RED color.
On business layer I have defined a dimension with aggregate aware function. This function takes first VWF_Party_Collection_A.Collectionstatus_CD column (at the higher level). If a user selects an attribute from contract level, function takes VWF_Contract_Collection_A.Collectionstatus_CD column.
Problem is when I take all attributes from VWD_Kunde_A table and than add the dimension with the mentioned aggregate aware function (ie Collectionstatus_CD), the constructed query from BO side does not make any sense. Here it is:
SELECT
D_ATA_MV_FinanceTreasury.VWF_Party_Collection_A.Collectionstatus_CD,
D_ATA_MV_FinanceTreasury.VWD_Kunde_A.Namespace_TXT,
D_ATA_MV_FinanceTreasury.VWD_Kunde_A.Party_KEY,
D_ATA_MV_FinanceTreasury.VWD_Kunde_A.Legacy_ID
FROM
D_ATA_MV_FinanceTreasury.VWD_Party_A
LEFT JOIN D_ATA_MV_FinanceTreasury.VWF_Party_Collection_A
ON D_ATA_MV_FinanceTreasury.VWD_Party_A.Party_KEY=D_ATA_MV_FinanceTreasury.VWF_Party_Collection_A.Party_KEY,
D_ATA_MV_FinanceTreasury.VWD_Kunde_A
WHERE
(
D_ATA_MV_FinanceTreasury.VWD_Party_A.Party_KEY=D_ATA_MV_FinanceTreasury.VWD_Kunde_A.Party_KEY )
AND
D_ATA_MV_FinanceTreasury.VWD_Kunde_A.Legacy_ID = 102241978
Please notice the strange conctruction in the 'FROM' part (comma has been added). Another strange and unexpected construction is in 'WHERE' part:
( D_ATA_MV_FinanceTreasury.VWD_Party_A.Party_KEY=D_ATA_MV_FinanceTreasury.VWD_Kunde_A.Party_KEY )
The mechanism that is functioning is joining joins VWD_Kunde_A with VWF_Contract_Collection_A table and yields the correct result.
Now, I have tried to define a dimension without the mentioned aggregate aware function that contains only VWF_Contract_Collection_A.Collectionstatus_CD attribute. When I run the same query BO yields CORRECT results and it generates the CORRECT (expected) query.
This is the query I am expecting:
SELECT
D_ATA_MV_FinanceTreasury.VWF_Contract_Collection_A.Collectionstatus_CD,
D_ATA_MV_FinanceTreasury.VWD_Kunde_A.Namespace_TXT,
D_ATA_MV_FinanceTreasury.VWD_Kunde_A.Party_KEY,
D_ATA_MV_FinanceTreasury.VWD_Kunde_A.Legacy_ID
FROM
D_ATA_MV_FinanceTreasury.VWD_Kunde_A LEFT JOIN D_ATA_MV_FinanceTreasury.VWF_Contract_Collection_A ON D_ATA_MV_FinanceTreasury.VWD_Kunde_A.Namespace_TXT = D_ATA_MV_FinanceTreasury.VWF_Contract_Collection_A.Namespace_TXT AND D_ATA_MV_FinanceTreasury.VWD_Kunde_A.Party_KEY = D_ATA_MV_FinanceTreasury.VWF_Contract_Collection_A.Party_KEY AND D_ATA_MV_FinanceTreasury.VWD_Kunde_A.Legacy_ID = D_ATA_MV_FinanceTreasury.VWF_Contract_Collection_A.Legacy_ID
WHERE
D_ATA_MV_FinanceTreasury.VWD_Kunde_A.Legacy_ID = 102241978
Furthermore, I suspected that it can something to do with contexts. However, I did not find any context for the mechanism that already functions and that I tried to copy. Therefore, I did not implement any context for the mechanisam I am tring to implement.
At this point I am clueless since I tried everything I knew. I would appreciate help.
Thanks!
A.
UPDATE: it seems as aggragate aware function is not functioning... This is how it is defined:
#Aggregate_Aware(D_ATA_MV_FinanceTreasury.VWF_Party_Collection_A.Collectionstatus_CD,D_ATA_MV_FinanceTreasury.VWF_Contract_Collection_A.Collectionstatus_CD)
(I just copied the code from Kreditklasse and adapted it... That makes me even more confused...)
UPDATE_2: it really seems as if aggragate aware is not functioning in my case because I selected all attributes from contract_context and it still jumps to party context. Very confused because THE SAME mechasism is functioning as expected when I select Kreditklasse...
Check the aggregate navigation.
Setting up Aggregate Awareness requires two steps (in addition to correctly defining the joins between the tables, of course):
Define the objects with the Aggregate_Aware function
Set table-object incompatibilities through Actions > Set Aggregate Navigation.
It sounds like the second part is not properly configured: make sure that any objects which require the second table are marked incompatible with the first.
I have a table of areas which has an AREA_ID column and an AREA column which is a Polygon type.
I am running the following query but I cannot seem to get it to work:
SELECT AREA_ID, AsText(AREA)
FROM networkmodel.sit_area
WHERE Within(AREA, Polygon((
50.913424 -1.420527,
50.915805 -1.391516,
50.898053 -1.390142,
50.895021 -1.428251,
50.913424 -1.420527)))
This query gives me an "Operand should contain 1 column" error.
If I put one less set of brackets around my coordinates I get an "Illegal non geometric '(50.913424 -1.420527)' value found during parsing" error instead. Are my coordinates the wrong format?
I am aware from the MySQL documentation that the Within function has not been implemented properly and falls back to the MBR implementation instead but I am just testing it out at the moment. I have used the Contains function in the past with success to return me records in a similar way by using a Point as the second parameter instead of a polygon and this is supposed to be the opposite of that.
It is my understanding from the documentation that this function takes two parameters and checks whether the first (my areas column in this case) falls within the given Polygon.
Any help is appreciated thanks.
Right I made it work now, Instead of using this function I had to change the Polygon declaration to:
GeomFromText('Polygon((50.913424 -1.420527, 50.915805 -1.391516, 50.898053 -1.390142, 50.895021 -1.428251, 50.913424 -1.420527))')