I have a pre-formed Zend_Db_Select which already utilized columns() method.
I need to add another column to select. Executing columns() again replaces the previous one, so I lose the previously selected columns.
Modifying the select I recieve is not possible.
How to add another column to an existing Zend_Db_Select which already incorporates columns() method? Is it possible without parts surgery?
Related
I have created a database in anylogic. Previously, I have related the information in the row to the columnn, i.e. there is a component in the row, and its properties are in the columns, and have put this in a function. Now I want to make the component the column and the properties, but don't know how to make it all relate. Below is the code I've written for the former:
site = selectFrom(parameters) .where(parameters.box_number.eq(boxNumber)) .where(parameters.site.eq(site)) .firstResult(parameters.site);
So box_number is the component and site is one of the properties. With this method, site is a column, but I want it to be a row.
You should use the SELECT WHERE SQL syntax, see https://help.anylogic.com/index.jsp?topic=%2Fcom.anylogic.help%2Fhtml%2Fconnectivity%2Fquerying.html&resultof=%22%73%65%6c%65%63%74%22%20%22%77%68%65%72%65%22%20
You can filter and load data in any format. Also, best use the database query wizard to help:
I have a table called transactions. Within that is a field called ipn_type. I would like to create separate table occurrences for the different ipn types I may have.
For example, one value for ipn_type is "dispute". In the past I would create a global field called "rel_dispute" and I would populate that with the value of "dispute". Then I could create a new table occurrence of the transactions table, and make a relationship based on transactions::ipn_type = transactions::rel_dispute. This way only the dispute records would show up in my new table occurrence.
Not long ago, somebody pointed out to me that this is no longer necessary, and there is a simpler way to setup such a relationship to create a new table occurrence. I can't for the life of me remember how that was done, though.
Any information on this would be greatly appreciated. Thanks!
To show a found set of only one type, you must either perform a find or use the Go to Related Record script step to show only related records. What you describe as your previous setup fits the latter.
The simpler way is to perform a find - either on demand, or by a script triggered OnLayoutEnter.
The new 'easy' way is probably:
using one base relationship only and
filtering only the displaying portal by type. This can be done with a global field, a global variable containing current display type. Multiple portals with different filter conditions are possible as well.
~jens
I would like to write a macro that works on the selected table.
Selection in a table
When I select a table, the object that ThisComponent.CurrentSelection returns is of type SwXTextTableCursor. I will refer to it generically as TextTableCursor.
According to DBG_methods it provides methods to traverse through the selected cells and merge or split the cells, but it doesn't seem to provide a way to access the actual table itself. Conversely, ThisComponent.TextTables returns the tables.
As far as I can tell, there is no way to determine if some cells or all of a table is selected.
Question
Is there any way to retrieve the TextTable(s) from TextTableCursor?
To get current selected TextTable use
ThisComponent.CurrentController.ViewCursor.TextTable
how would I ignore having Zend_DB save() from trying to fill out a created column? I do not need that column for a certain model.
Don't send the data. save() is part of the Zend_Db_Table_Row api and is designed to be somewhat intelligent in the way it saves data to a row. It will perform an insert or an update of a row depending on what is required.
save() will also only update the columns that it has data for. If you don't send new data for your created column save() won't overwrite the data.
When ever it is possible I let the database I'm using create and update the columns for created and updated. That way I have the information available to query if I need it but I don't have to do something with PHP that My database can do better.
Check out http://framework.zend.com/manual/1.12/en/zend.db.table.html Section "Advanced usage".
For more specific and optimized requests, you may wish to limit the
number of columns returned in a row or rowset. This can be achieved by
passing a FROM clause to the select object. The first argument in the
FROM clause is identical to that of a Zend_Db_Select object with the
addition of being able to pass an instance of Zend_Db_Table_Abstract
and have it automatically determine the table name.
Important
The rowset contains rows that are still 'valid' - they simply contain
a subset of the columns of a table. If a save() method is called on a
partial row then only the fields available will be modified.
So, if you called an update() I think it would be as simple as unsetting the value for the column you don't want to touch. Of course database constraints will need to be honored - i.e. column should allow nulls.
I want to bring in all the values in a specific field to populate a parameter. I can do so, but I also want to add the word "..ALL" to the head of the list so the parameter essentially becomes optional.
When I choose a new data source, I don't seem to have the option of entering a SQL statement to pull the values, I can only choose a field to draw values from.
How do I do this?
You don't see the Add Command option right under the datasource name in the database expert? This let's you enter the sql so you can union the hardcoded 'ALL' option.
Or, you could always use a view or stored procedure.