What is appendNormTransformer in the Symfony FormBuilder? When should I use this instead of appendClientTransformer and prependClientTransformer
Taken from the class documentation block of Form.php:
To implement your own form fields, you need to have a thorough understanding
of the data flow within a form field. A form field stores its data in three
different representations:
(1) the format required by the form's object
(2) a normalized format for internal processing
(3) the format used for display
A date field, for example, may store a date as "Y-m-d" string (1) in the
object. To facilitate processing in the field, this value is normalized
to a DateTime object (2). In the HTML representation of your form, a
localized string (3) is presented to and modified by the user.
So (1) is the app data, (2) is the normalized data and (3) is the client data.
Now, for your question, it depends which data would like to transform. If is the client data you need to transform (from (2) to (3)), then you should use appendClientTransformer or prependClientTransformer.
On the opposite, if you would like to change the normalized data (from (1) to (2)), then you should use appendNormTransformer or prependNormTransformer.
So, normalization transformer sits between (1) and (2) ((1) normalizeTransformer -> (2)). And client transformer sits between (2) and (3) ((2) clientTransformer -> (3))
Also, note that append and prepend methods ([append|prepend][Norm|Client]Transformer) will potentially be replaced by a add methods (add[Norm|Client]Transformer) in Symfony 2.1, see this pull request on GitHub for more information.
Hope this helps,
Matt
Related
By adobe docs, it is clear to create simple reports (Adobe Docs)
But how to create extractor for a column, which can convert date value to "week start to week end" (4 Jan 16 to 10 Jan 16) ?
The output should be sortable, i.e. not using clientFilter.
Apparently there is no way to extend the functionalities in AEM reports.
Transforms the results returned by the initial query (reportbase) into the basic result set using value extractors.
Value extractors are automatically chosen depending on the column type. They are used for reading values from the underlying JCR Query and creating a result set from them; after which further processing may then be applied. For example, for the diff type, the value extractor reads two properties, calculates the single value that is then added to the result set. The value extractors cannot be configured.
Hence, ended up saving another property in data source node, with formatted data instead of extracting formatted data.
This question is about implementation.
I'm building an android application with titanium.
There are multiple screens and i take data in each of them.
Each screen is a commonJS module
I want to write all the data i take to an sqlite3 database, but i suppose it would be inefficient to write them as i take inputs. Two ways come to my mind as to how to do this.
create an object and pass to each module to hold the data as i take them
create an object in the first module to hold the data and pass each data item to it by firing a custom event.
What i'm asking, is if there's a better approach to this or which of these two would be more efficient.
NB: I don't have a lot of screens, but that could change though.
Thanks.
Titanium.App.Properties are widely used for Global variable creation.
The following methods will help you to create global variable
setBool : Sets the value of a property as a Boolean data type
setDouble : Sets the value of a property as a double (double-precision, floating point) data type
setInt : Sets the value of a property as an integer data type
setList : Sets the value of a property as an array data type
setObject : Sets the value of a property as an object data type
setString : Sets the value of a property as a string data type
All the above methods will allow user to save corresponding type of data as gloabl. You may retrieve saved values using getBool, getDouble, getInt, getList, getObject, getString methods respectively.
i think Ti.App.properties set and get string would do fine for you here is example too
http://docs.appcelerator.com/titanium/3.0/#!/api/Titanium.App.Properties
Thanks
I have a JDOQL/DataNucleus storage layer which stores values that can have multiple primitive types in a varchar field. Some of them are numeric, and I need to compare (</>/...) them with numeric constants. How does one achieve that? I was trying to use e.g. (java.lang.)Long.parse on the field or value (e.g. java.lang.Long.parseLong(field) > java.lang.Long.parseLong(string_param)), supplying a parameter of type long against string field, etc. but it doesn't work. In fact, I very rarely get any errors, for various combinations it would return all values or no values for no easily discernible reasons.
Is there documentation for this?
Clarification: the field is of string type (actually a string collection from which I do a get). For some subset of values they may store ints, e.g. "3" string, and I need to do e.g. value >= 2 filters.
I tried using casts, but not much, they do produce errors, let me investigate some more
JDO has a well documented set of methods that are valid for use with JDOQL, upon which DataNucleus JDO adds some additional ones and allows users to add on support for others as per
http://www.datanucleus.org/products/accessplatform_3_3/jdo/jdoql.html#methods
then you also can use JDOQL casts (on the same page as that link).
Hello friends i am to add optional parameter to pass these in a method the parameter may vary every time.
And i need to pass these parameter to a method, so my question is how should i add these optional parameter to a collection and what kind of collection object should i use and how should i use that.
i elaborate here, i am having following fields.
1)course field(a drop down list) and on selected index change of course a check box list of corresponding branches are visible now i can select branches of choice by putting check mark on check boxes.(both course and branch are compulsory fields)
2)pass_out year which is a compulsory field.(a text field)
3)education gap which is optional so the text box may be empty as well and may having a digit as well.
4)required first year percent, second year, third year, final year, current degree, high school, senior secondary, gradation, post graduation, diploma percent, birth date which are all optional so these fields may also be empty or having a digit in the text box.
5) current backlog(a drop down list)having choices all, yes , no.
6)number of ATKT text box which may also be empty or can have a digit.
So i want to store all these variables value to some collection of object which will passed to a different method by passing all these variable from here,
But i am unable to figure out how should i store these optional variable to some object and how should i pass them to other method where all variable values will be taken out and an appropriate query will be written to interact with the data base to get the data table.
please elucidate me on this please. I am really not getting a feasible solution, i have thought of few options which i can let you know if you demand but those all seems to be tedious and difficult and redundant so i see help from you.
Don't bother with optional parameters or some collection of parameters, just decide how you will represent each value best, including how to represent empty values.
For a string value you can just use a null reference or an empty string. For a numeric value you can use a nullable int (int?). For a list of checkboxes where none is selected you can send an empty list.
When figuring out how to use this in a query to the database, it's easier if you have the values as parameters that always exist even if the values represent an empty value, rather than to have to parse out parameters from a collection where a parameter might be missing. Also, as you have different data types it's better if you can use an appropriate data type for each parameter, instead of casting everything into the same mold just to fit in a collection.
Is there a way, in Axapta/Dynamics Ax, to create an Extended Data Type of type integer which only allows enering values in a specified range (i.e., if the extended data type is meant for storing years, I should be able to set a range like 1900-2100), or do I have to manage the range using X++ code?
And if I need to use X++ code to manage the range, which is the best way to do it?
I suggest you use the ''validateField'' of the corresponding table.
Search for the method in AOT\Data Dictionay\Tables to see many examples.
You can can't specify the range on the extended data type itself. If the type is used for a table field, you can add code to the insert and update methods of the table, in order to validate the value whenever the record is updated. This approach could however have a cost in terms of performance.
You can also choose to just add code the the validateWrite method of the table, if you are satisfied with the validation only taking place when the value is modified from the UI.