For now I have field "String firstName" it converted to "first_name" and i want "firstname" as default in Hibernate. Is it posible?
5.5.2.1 Table and Column Names
class Person {
String firstName
static mapping = {
table 'people'
firstName column:'firstname'
}
}
You can change the naming strategy for the entire project. From the documentation https://grails.github.io/grails-doc/latest/guide/GORM.html#customNamingStrategy.
By default Grails uses Hibernate's
ImprovedNamingStrategy to convert
domain class Class and field names to
SQL table and column names by
converting from camel-cased Strings to
ones that use underscores as word
separators. You can customize these on
a per-instance basis in the mapping
closure but if there's a consistent
pattern you can specify a different
NamingStrategy class to use.
Configure the class name to be used in grails-app/conf/DataSource.groovy in the hibernate section, e.g.
So, something like this in your DataSource.groovy
dataSource {
pooled = true
dbCreate = "create-drop"
…
}
hibernate {
cache.use_second_level_cache = true
…
naming_strategy = org.hibernate.cfg.DefaultNamingStrategy
}
Related
i tried to modify a collection before returning it to be exported with maatwebsite Excel. The column i tried to modify is the created_date column (the default created_date of laravel) so that when exported to excel, i only get the date not datetime.
i tried:
namespace App\Exports;
use App\Invoice;
use Maatwebsite\Excel\Concerns\FromCollection;
class InvoicesExport implements FromCollection
{
public function collection()
{
$temp = Invoice::all();
$len = count($temp);
for($i=0;$i<$len;$i+=1){
$temp[$i]->created_at = $temp[$i]->created_at->format('m/d/Y')
}
return $temp;
}
}
in the controller:
public function export()
{
return Excel::download(new InvoicesExport, 'invoices.xlsx');
}
but, when exported, the result in the excel file is, for example: '07/26/2016T00:00:00.000000Z'
i noticed that the time become zero, and when i tried:
$temp[$i]->created_at = "some random string"
the laravel in webpage return error said that "some random string" cannot be parsed to datetime by Carbon Class constructor.
how can i make the exporting does not construct datetime with the string i give in the 'created_at' column, but just return the plain string instead? if let's say, i can't modify the database so i can't create extra column and extra column for this simple thing is too much, i think.
If you are using Maatwebsite\Excel 2.1 try column formatting by the setColumnFormat($array) method.
If Maatwebsite\Excel 3.1, try with the WithMapping interface.
created_at is marked as 'datetime' in the $cast property of your model by default so when you set it it's automatically cast as date (with Carbon::parse('the value you gave'))
If you want to export your collection with some values formatted you should not mutate the objects of the original objects but create new dedicated objects/arrays that will not interfere with model behavior nor corrupt your existing objects.
I want to generate a custom named constructor in Dart.
I have many dto class to implement and each should provide a named constructor like: ClassName.fromMap().
For example for this class:
class Student {
final String name;
final int age;
}
The generated constructor should be:
Student.fromMap(Map<String, dynamic> map) :
name = map['name'],
age = map['age'];
How can I retrieve the list of the field of my current class as strings? Is that even possibile?
Of course I can have a variable number of fields.
My template looks like:
$CLASS$.fromMap(Map<String, dynamic> map) :
$INITIALIZATION_LIST$
binding $CLASS$ to dartClassName().
Now I'd like to bind $INITIALIZATION_LIST$ to something like:
getClassFieldList().forEach((fieldName) => "$fieldName = map['$fieldName']")
Can I achieve something like that?
There is no way to retrieve a list of Dart class fields using predefined live template functions. You can try developing your own template macro for this. See https://intellij-support.jetbrains.com/hc/en-us/community/posts/206201699-create-a-new-expression-for-a-live-template-for-actionscript for some hints.
Existing live template functions implementations can be found at https://github.com/JetBrains/intellij-community/tree/master/platform/lang-impl/src/com/intellij/codeInsight/template/macro.
You can also try using Structural Search and Replace instead of live template
Hybris: 6.3.0.0-SNAPSHOT (the behavior is the same with 6.3.0.21)
When exporting impex, we noticed a difference when exporting a non-multivalue Type attribute versus exporting a multivalue Type attribute.
When exporting String attribute data without colon, a non-multivalue attribute can be exported as Experts, while a multivalue attribute can be exported as Experts|Hybris.
When exporting Type with String attribute data with colons (e.g. URL), the colon is escaped with a double backslash (for multivalue only). A non-multivalue attribute can be exported as https://experts.hybris.com, while a multivale attribute can be exported as https\://experts.hybris.com if there is only 1 value or as https\://experts.hybris.com|https\://help.hybris.com if there are 2 values.
How can I stop the export from escaping the colon? Is there a method I can override to change this behavior? I would like to change the result to https://experts.hybris.com|https://help.hybris.com or to "https://experts.hybris.com"|"https://help.hybris.com".
Business Case: We want to copy the URL from the exported impex, but the URL contains double backslashes. The exported impex is not meant to be reimported.
Notes #`: The URLs are stored in a collection (e.g. Product.newAttribute, where newAttribute is a collection of custom types which has a String). So, the Impex header looks something like "INSERT_UPDATE Product;newAttribute(data)"
Notes #2: (UPDATE: Didn't work) Currently, I'm checking if it's possible with a CSVCellDecorator; this is for import only.
Notes #3: Currently, I'm checking if it's possible with AbstractSpecialValueTranslator.
For this specific case, I created a new translator, extending AbstractValueTranslator. Then, I implemented the exportValue method, joining the string data (which are URLs), without escaping them.
public String exportValue(final Object value) throws JaloInvalidParameterException
{
String joinedString = "";
if (value instanceof Collection)
{
final Collection valueCollection = (Collection) value;
if (!valueCollection.isEmpty())
{
final ArrayList<CustomType> list = (ArrayList<CustomType>) valueCollection;
final StringJoiner joiner = new StringJoiner("|");
for (final CustomType customType : list)
{
// data is a URL
joiner.add(customType.getData());
}
// value would be something like "https://experts.hybris.com|https://help.hybris.com"
joinedString = joiner.toString();
}
}
return joinedString;
}
Reference:
Customization: https://help.hybris.com/1808/hcd/ef51040168d743879c015b7de232ce40.html
I think that might not be possible, since the colon is used to separate keys for referenced types. As in
...;catalogVersion(catalog(id),version);...
...;myCatalog:Staged;...
Why not run search/replace on the result?
I'm creating a search function to browse through one of my domain classes.
I have a string which i would like to split into individual words, so that I can search through my domain class for each word.
For example, my User class has a name attribute and a biography attribute.
If I searched "Tom Chicago" in my system, it would return all the users with a name like %tom% or with a name like %chicago% AND all the users with a biography containing either of those words to.
I have started my search function like this:
def userCriteria = User.createCriteria()
userResults = userCriteria.list(){
like("name", "%${q}%")
like("biography", "%${q}%")
}
Obviously this is not doing quite what I'd like it to do. How can I adjust it so that it does?
While this is going to create some horrible SQL statements it will do what you want. Not sure I could in good faith use this in a production system when such things as Searchable exist.
def userCriteria = User.createCriteria()
def userResults = userCriteria.list() {
or {
q.split(" ").each { t ->
ilike("name", "%$t%")
ilike("biography", "%$t%")
}
}
}
I have used dynamic object but here is a situation where the column names comes from a pre-defined string arrays.How can i create objects at runtime with these pre-defined set of column values?.
The reason why i wanted to do this way is to create a custom class and add custom validation attributes in it so that i can use reflection at runtime to populate values to these dynamic objects mapped to my custom class and validate the values using a single function.
dynamic x = new MyCustomClass();
x.Name = "Jones"; // The Field or Column name "Name" comes from a array of strings.
Validator.Validate(x); //Here i use reflection to iterate through the custom attributes on MyCustomClass and validate them based on conditions.
Is it possible to do something like this x."Name" = "Jones"; :-)
I would suggest perhaps adding an indexer property to your MyCustomClass?
public string this[string binder] {
get {
string result;
return (this.TryGetMember(binder, out result)) ? result : string.Empty
}
set {
this.TrySetMember(binder, value);
}
}
x["Name"] = "Jones";