I'm trying to loop all records displayed in a page, from the selected one to the end of the rows:
For example here, as I'm selecting only the 5th row it will loop through 5th and 6th row (as there are no more rows below)
What I've been trying is this:
ProdOrderLine := Rec;
REPEAT
UNTIL ProdOrderLine.NEXT = 0;
But it will loop through all records in the table which are not even displayed in the page...
How can I loop only the page records from the selected one to the latest?
Try Copy instead of assignment. Assignment only copies values of there field from one instance of record-variable to another, it died not copy filters or keys (sort order).
Alas, I have to mention that this is uncommon scenario to handle records like this in BC. General best practice approach would be to ask user to select all the records he or she needs with the shift+click, ctrl+click or by dragging the mouse. In that case you will use SetSelectionFiler to instantly grab ask the selected records.
This is how it works across the system and this how user should be taught to work. It is a bad idea to add a way to interact with record that only works in one page in the whole system even if users are asking for it bursting into tears. They probably just had this type of interaction in some other system they worked with before. I know this is a tough fight but it worth it. It is for the sake of stability (less coding = less bugs) and predictability (a certain way of interaction works across all the pages) of the system.
Related
In the official documentation there is a text for which I can't totally understand the reason:
When working with time series, do not leverage the transactional behavior of rows. Changes to data in an existing row should be stored as a new, separate row, not changed in the existing row. This is an easier model to construct, and it enables you to maintain a history of activity without relying upon column versions.
The last sentence is not obvious and concrete, so it doesn't convince me. For now, using versioning for updating the cell's data still looks to me like a good fit for the update task. At least versions are managed by BigTable, so it's simplier solution.
Can anybody please provide more obvious explanation of why the versioning shouldn't be used in that use case?
Earlier in that page under Patterns for row key design, a bit more detail is explained. The high level view being that using row keys instead of column versions will:
Make it easier to run queries across your data, allowing for scanning of less data.
Avoid going over the recommended maximum row size.
The one caveat being:
It is acceptable to use versions of a column where the use case is
actually amending a value, and the value's history is important. For
example, suppose you did a set of calculations based on the closing
price of ZXZZT, and initially the data was mistakenly entered as
559.40 for the closing price instead of 558.40. In this case, it might be important to know the value's history in case the incorrect value
had caused other miscalculations.
I have a tabular form which is updated throughout the year and i wanted to prevent users from editing certain rows. Currently the 'row type' is hard coded however I want the application admin to control which 'row types' are readable / write at certain times. My answered question, click here.
Currently a dynamic action is fired which prevents the rows that contain the type 'manager figure' and 'sales_target' being edited.
I have created a table with the three row types against each customer. Each status is set by a number: 0 to 3 (These i will decode into something meaningful for users).
0 - Row with that row type is read only.
1 - Users can enter into the row with that row type.
2 - row is read only with that row type.
3 - row is complete and set to read only.
I have created a new form (new tab) for the admin user to maintain each status.
Currently for Customer 'Big Toy Store' rows should be set as follows:
Manager Figure row should be read only (since set to 2)
Sales should be readable (since set to 0)
Sales target should be writable (since set to 1)
Please can i be pointed in the right direction, ive looked into jquery but struggling to work out how to pass the output of an sql query to it, so it can be used to determine which rows should be read only.
Link:apex.oracle.com
workspace: apps2
user: developer.user
password: DynamicAction
application name: Application 71656 Read only Rows for Tabular Form
I'm not sure that a tabular form is a good format to work out this idea. As you can see, you require quite a bit of javascript to produce the results you want. Not only that, but this is all client side too, and thus there are some security risks to take into account. After all, I could just run some Firebug and disable or revert all things you did, and even change the numbers. Especially with sales figures, which is something you most definitely do want altered by everybody and is also the nature of your question, security is important.
There are more elegant ways here for you to control this, and not in the least to reduce the amount of highly customized javascript code. For example, you could do away with the tabular form, and instead implement a modal popup from an interactive report. Since the modal popup would be an iframe and thus a different page, you can create a form page. On a form page you have a lot more control over what happens to certain elements. You can specify conditions, read-only conditions, or use authorization schemes. All things you can not evidently use in a tabular form.
I'd think you'd do yourself a service by thinking this over again, and explore a different option. How much of a dealbreaker is using a tabular form actually?
You need the user. You need to know what group he belongs to, and then this has to be checked against the different statusses and rows have to be en/disabled. Do you really want this to happen on the client side?
I'm not saying it can't be done in a tabular form and javascript. It can, I'm just really doubting this is the correct approach!
I am having a problem in QTP with selection of a web list box and I have exhausted what I know to do to resolve it. I am hoping someone can help.
There are 5 controls in a container, 2 webedit controls and 3 weblist controls. Together, they allow entry of accounts associated with a customer, and there can be 16 accounts for any customer. There are only ever five controls active at any time, whether editing or entering information for an account. When the information for an account is entered and accepted, it changes to a read-only table row and a new set of controls appears below it for entry of the next account.
The information entered in these controls is the account number, type, description, designation, and status. The status value is contingent on the designation, and the items in the list change dynamically depending on what the user specifies for the designation. The status list is not enabled until the designation is specified.
After some experimenting with timing, I was able to get past an issue where the status list for the first account was seen by QTP as disabled even though it was clearly enabled. I was then able to advance to entry of the second account.
I change the designation on the second account and try to select an appropriate item (specified in a data table) in the status list. My specification from the data table is never found. I figured it was a problem with verbiage differences and also that I should probably anticipate that and address it now, so I wrote a function to accept three parameters, the list and up to two search items. My function searches the listbox passed to it and looks for a match (full or partial) on the search items it receives. Here is where I encountered a significant problem.
The list of the control my function received was from the previous iteration of the test, corresponding to the designation of that account. This is why my function was not finding the selection item. The list on the screen shows the appropriate items, which suggests that I am looking at the wrong object. I also get the ‘object is disabled’ message when I put my data table value directly into the list with the select statement.
The active controls are displayed below the readonly presentation of the previously entered accounts. I am very new to QTP, but I also read documentation. My only theory at this point is that ATP is not passing the right list to my function… that perhaps that how it was learned included the position, which will change each time. However, the spy identifies the screen control as the same item I processed for the preceding account, which makes my theory suspect. In addition, the other four controls, which are not dynamically changing, do not present the same problem. I can put the information in them consistently.
I apologize for the length of this question, but I wanted to be as thorough and clear as possible. Can anyone help me get past this obstacle.
There are many possiblities why it is exposing this behaviour, so let's start with something simple:
Did you try a myWebList.Refresh call before you do something with the listbox? Refresh re-identifies the object.
Have you put a break point (red dot) inside the custom function. Just see what is happening there. With the debug viewer you can enter a realtime command in the scope of that function like msgbox myWebList.exist(0) or myWebList.Highlight
Can you see how the disabled property is propagated to the webpage? If you can 'Object Spy' it as TO property, you can add it in the GUI Map description.
A more sophisticated aproach is to create a Description with the weblist properties. If you can read the disabled property as an RO property from the 'Object Spy', you can use it as an identifier like "attribute/customDisabledProperty:=false".
If you cannot correctly read the disabled property, you can create a description object and do a count on the amount of items that match that description on that page with numberOfLists = Browser("my browser").Page("my page").ChildObjects(myDescription).Count and get the last list with Set lastList = Browser("my browser").Page("my page").ChildObjects(myDescription)(numberOfLists-1)
Keep us informed. Depending on how this works out, we can work into a direction for a solution.
I figured this out early this morning. There are 4 different list boxes used, each made visible or enabled dependent on the selection of the previous list. This is why the spy found the one listed when I was using it and also why the items in the list were not appropriate to what I had selected and also why it appeared disabled to QTP but enabled to me.
I was selecting the same designation when trying to spy it. It was intuitive that the controls were all the same. I am also a windows programmer and I would have populated the same list each time with the appropriate list items, and I presumed that was what the web developer was doing. It was not and it took some time to figure that out. Now that I figured it out, everything is working fine, and I came back to report that. This was a significant, time-intensive lesson.
Thank you very much for your input. It is still useful because I am very new to QTP and every thing I learn is of value.
Assume that I have a list of employee names from a database (thousands, potentially tens-of-thousands in the near future). To make the problem simpler assume that each firstname/lastname combination is unique (a big if, but a tangent).
I also have a RSS stream of news content that pertains to the business (again, could be in the hundreds of items per day).
What I would like to do is detect if an employees name appears in the several paragraph news item and, if so, 'tag' the item with the person its talking about.
There may be more than one employee named in a single news item so breaking the loop after the first positive match isn't a possibility.
I can certainly brute force things: for every news item, loop over each and every employee name and if a regex expression returns a match, make note of it.
Is there a simpler way in ColdFusion or should I just get on with my nested loops?
Just throwing this out there as something you could do...
It sounds like you'll almost unanimously have significantly more employee names than words per post. Here's how I might handle it:
Have an always-running CF app that will pull in the feeds and onAppStart
Grab all employees from your db
Create an app-scoped look up struct with first names as keys and a struct of last names as values ( you could also add middle names sibling to last names with a 3rd tier if desired ).
So one key in the look up might be "Vanessa" with a struct with 2 keys ( "Johnson" and "Forta" ) as its value.
Then, each article you parse, just listToArray with a space as a delimiter and loop through the array doing a simple structKeyExists with each token. For matches, check the next item in the array as a last name.
I'd guess this would be much more performant processingwise than doing however many searches and also take almost no time to code and you can feed in any future sources extremely simply ( your checker takes one argument, any text on Earth ).
Interested to see what route you go and whether your experiments expose anything new about performance in CF.
Matthew, you have a tall order there, and there are really multiple parts to the challenge/solution. But just in terms of comparing a list of values to a given set of text to see if one of them occur in there, you'll find that there's no one could CF function. BEcause of that, I created a new one, findList, available at cflib:
http://cflib.org/index.cfm?event=page.udfbyid&udfid=1908
It's not perfect, nor as optimal as it could be, but it may be a useful first step or you, or give you some ideas. That said, it suited my need (determine if a given blog comment had reference to any of the blacklisted words). I show it comparing a list of URLs, but it could be any words at all. Hope that's a little helpful.
Another option worth exploring is leveraging the Solr engine that ships with CF now. It will do the string search heavy lifting for you and you can probably focus on dynamically keeping your collections up to date and optimized as new feed items come in.
Good luck!
I have a couple hundred of image thumbnails, 15k each. I want to display 20 or so on each page.
Would django.core.paginator suffice for the pagination of these pages? I.e., will it return only those images displayed on the current page? (And if not, what would be a good way to do this?) Thank you.
Depends, because there is one big limitation from the RDBMS (which affects all databases, including MySQL, Postgres, etc.).
django.core.paginator takes a QuerySet which represent any kind of SQL query and adds a LIMIT clause to just get a couple of entries from the database. This approach works well for many kinds of applications, but might become a serious problem if you have a lot of entries. The particular problem is, that whenever you access the 800th page, the database will actually fetch 801*20 entries and then drop the first 800*20 entries again to return the last twenty.
Unfortunately, there is no easy way to solve this problem. In a lot of cases, a next/prev button might be enough so you can write your own pagination which does operate on after-keys instead of page numbers. For example, if the last entry currently displayed by the user has the key "D" you show a next button which links to /next?after=D and then use a SQL query like SELECT * FROM objects WHERE key >DORDER BY key LIMIT 20. The advantage of this approach is, that you can add an index on objects.key which speed up things significantly.
The other approach requires, that you add an additional, indexed (!) column page_num to your table. Then you can perform SQL queries like SELECT * FROM objects WHERE page_num=800 ORDER BY key. With that approach, you can still access all pages randomly, but you have to maintain the page_num column. This might be easy if data is mostly appended at the end and is more complicated if you want to delete/insert elements from the middle efficiently.
So, I would start with django.core.paginator because it's just about 1 line of code. But keep an eye on the response times of your paginated views and the slowquery log from your database. If your database server can't handle the load anymore, you will have to choose one of the techniques mentioned above. Choose solution 2 if random page access is an requirement and solution 1 otherwise (because it's much simpler).
PS: And yes, django.core.paginator will work correctly. :)