I have a Strain model that has a belongsTo relationship with a Sample model, i. e. a strain belongs to a sample.
I am configuring a hidden field in the StrainForm configure() method this way:
$defaultId = (int)$this->getObject()->getSample()->getTable()->getDefaultSampleId();
$this->setWidget('sample_id', new sfWidgetFormInputHidden(array('default' => $defaultId)));
Whenever I create a new Strain, the $form->save() fails. The debug toolbar revealed that it tries to save a Sample object first and I do not know why.
However, if I retrieve the default sample ID using the table it works like a charm:
$defaultId = (int)Doctrine_Core::getTable('Sample')->getDefaultSampleId();
$this->setWidget('sample_id', new sfWidgetFormInputHidden(array('default' => $defaultId)));
My question here is what can be happening with the getObject()->getSample()... sequence of methods that causes the StrainForm to think it has to save a Sample object instead of Strain.
I tried to debug with xdebug but I cannot came up with a clear conclusion.
Any thoughts?
Thanks!!
When you call getSample its creating a Sample instance. This is automatically attached to the Strain object, thus when you save you also save the Sample.
An altenrative to calling getSample would be to chain through Strain object to the Sample table since i assume youre only doing this so your not hardcodeing the Sample's name in related form:
// note Sample is the alias not necessarily the Model name
$defaultId = Doctrine_Core::getTable($this->getObject()->getTable()->getRelation('Sample')->getModel())->getDefaultId();
Your solution probably falls over because you can't use getObject() on a new form (as at that stage the object simply doesn't exist).
Edit: Why don't you pass the default Sample in via the options array and then access it from within the form class via $this->getOption('Sample') (if I remember correctly)?
Related
I am desperately waiting for someone attention to get my question answered.... please help..
ModelAdmin model has to export to Excel action method.
I need to access related model fields in action method. That means I can not pass any arguments therefore I tried relatedmodel_set but ModelAdmin action method shows memory location and fails when I try to access values through attributes:
<django.db.models.fields.related_descriptors.create_reverse_many_to_one_manager..RelatedManager object at 0x7f8eea904ac0>
model.py
class EnrolStudent(models.Model):
def get_trn_activity(self):
return self.studenttraininactivities_set
class StudentTraininActivities(models.Model):
trainin_activities = models.ForeignKey(EnrolStudent,
on_delete=CASCADE, null=True )
<other fields...>
admin.py
#admin.register(EnrolStudent)
class EnrolAdmin(admin.ModelAdmin):
form = CityInlineForm
inlines = [CohortTraininActivitiesInline]
...
actions = [export_as_txt_action_0120("File NAT00120 data Export"
, fields=['information_no', 'get_trn_activity',
'student_enrol__student_code'])]
I need to access related model fields to export to excel.
I can not pass parameter to get_trn_activity as you have noticed.
Therefore selected rows only data from Django admin change_list page will only need bit of work using its queryset in actions method used in separate actions.py file that I can do!
Please help me with this issue. I am new to Python / Django.
I also tried property decorator in related model then access in a method in main model then call it inside action but same problem with memory address not the direct value and then how to get data of memory location here .... I don't know.
If I can access the related fields then I can do it no issue.
Another question:
I had same situation with model/related model before, but they were connected through OneToOneField relationship and I was able to use dundor to access related model fields but in this case of ForiegnKey relationship I can not see related model in queryset.
In other case this is what I can do easily; here cohortdetails is related model and when I debug I saw it was listed in queryset that was great.
actions = [export_as_txt_action_0080("File NAT00080 txt Export",
fields=['rto_student_code', 'first_name', 'family_name'
,'cohortdetails__highest_school__highestschool_levelcode',
'cohortdetails__cohort_gender'
, 'cohortdetails__student_dob' ])]
I want to create a standard typo3 extension but when I create a record (or modify it) I want to calculate something (in my case I want to call the Google Map API to get coordinates from a given address).
SO I search for a hook or something. Any idea?
One of my project example, may helps you for hook in backend when record has been changed.
In your extension file ext_localconf.php
// Hook for cancellation
$GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['t3lib/class.t3lib_tcemain.php']['processDatamapClass'][] = 'EXT:femanager/class.tx_femanager_tcemainprocdm.php:tx_femanager_tcemainprocdm';
hook file class.tx_femanager_tcemainprocdm.php where you can execute
your script
class tx_femanager_tcemainprocdm{
function processDatamap_postProcessFieldArray ($status, $table, $id, &$fieldArray, &$reference){
// $status also called action like delete
// $table - table name of excute backend action
// $id - record UID
// $fieldArray - fields of your table
if($table = 'your_extension_table_name'){
// your script
}
}
}
Maybe this answer is useful to you.
Register your class as a data handling hook in your extension. This one "is called AFTER all commands of the commandmap" were executed. Maybe you need to look for a more appropriate one.
Then in your registered Hook i.e. 'typo3conf/ext/your_ext/Classes/Hooks/AfterCreate.php' do your calculation. Hope this sets you on the right track.
In my special case there was no need to calculate the coordinates when the record got saved. So I just used the listAction in the controller, check if coordinates are there and if not call the Google API (and send an email if the Google API does not give a coordinate back).
In another case where the new record comes from a frontend plugin and I had to do something with this data I used the createAction in the Controller. (I am not sure if the createAction is also called when the record is created from the backend.)
I override the record view, by creating in custom/modules/myModule/clients/base/views/record/record.js this file record.js. I want to get the value of a field for the current object and I use this.model.get('duration'), but I get nothing.The only field available is "id". How can I retrieve the values for others fileds?
When the record.js script is initially called, the model won't have fully loaded, so the only available field with be the id.
Your best bet is probably to override the _renderHtml function; by the the time the view is being rendered all the model details will have fully loaded:
_renderHtml: function() {
// custom code involving this.model.get('duration')
// call parent
app.view.View.prototype._renderHtml.call(this);
}
Note that you may find _renderHtml is called multiple times, sometines before the model is fully loaded. This is just a quirk of Sugar so it may be best to add a check in your code:
if (this.model.get('duration')) {
// custom code involving this.model.get('duration')
}
Dont forget that app.model.get('myfield') only delivers the right content (from this field) when your field is already displayed in detailview - else you will get "undefined"!
So you
Have to call the rest api (rest/v10/yourmodel/yourid) - than you
have all the values available
Display your fields (even you dont want to) to be able to use it in app.model.get('yourfield'), an alternative you could append your record.js (after rendering) with $('div [data-name="yourfield"]').hide();
I know this question is quite old already (but if someone else run into this he could find this useful).
I have the following in a config.ini file: (Zend_Form_Element)
site_status.name = "site_status"
site_status.type = "select"
site_status.label = "Status"
site_status.options.multiOptions.active.key = "Active"
site_status.options.multiOptions.active.value = "Active"
site_status.options.multiOptions.active.key = "Inactive"
site_status.options.multiOptions.active.value = "Inactive"
As you can see this is supposed to be a dropdown (select) box, however it is being rendered as a standard text box. What am I doing wrong?
--> Edit
Rather than tying the elements to a form, I am trying to tie them to a database: In my code it would look something like this:
[{tablename}] // the table name would represent a section in the ini
{column}.name = "{column_name/form_field_id}";
{column}.type = "{form_element_type}"
{column}.label = "{form_element_label}"
...
From there I would pull in the database table(s) that the form would represent data for (one or more tables as necessary). As far as the reasoning for this approach is that (down the road), I want to define (either by ini or some other storage method), a configuration file that would be a list of fields/elements that belong to a specific form (that a non-programmer type could easily edit), that the 'generic' form class would read, pull in the element info, and create the form on the fly.
I do realize however this poses another problem which I haven't yet figured out, and that is how to use table lookups for select elements (without coding the database retrieval of the lookup into the form, so that a non-user could easily just define it without any programming, purely configuration, but that is a whole other topic not part of my question here. (and I think I have viable ideas/solutions to that part of the problem anyhow) -- extra config entries and a generic routine pretty much.
I hope that clarifies my thought process and reason why I am doing it the way I am in the example above.
I have not yet played with using a Zend_Config to construct an instance of Zend_Form.
But a look at the code suggests that Zend_Form::addElement() doesn't directly take a Zend_Config instance as a param. Rather, it looks like you need pass your Zend_Config instance to the form constructor. It also seems that the config format needs to be a little deeper in order to map config keys to setXXX() calls.
In path/to/config/myForm.ini:
[myForm]
myForm.elements.site_status.name = "site_status"
myForm.elements.site_status.type = "select"
myForm.elements.site_status.label = "Status"
myForm.elements.site_status.options.multiOptions.active.key = "Active"
myForm.elements.site_status.options.multiOptions.active.value = "Active"
myForm.elements.site_status.options.multiOptions.inactive.key = "Inactive"
myForm.elements.site_status.options.multiOptions.inactive.value = "Inactive"
Then instantiating:
$formConfig = new Zend_Config_Ini('path/to/config/myForm.ini', 'myForm');
$form = new Zend_Form($formConfig);
Not tested, but looking at this example:
Using Zend_Form with Zend_Config - Andrew Vayanis
it feels like it should go something like the above.
Update
In view of the comments/feedback from #Aaron, two more approaches.
We could extend Zend_Form, implementing a method called something like addElementByConfig in which we would pass the shallow Zend_Config instance that describes the element itself. In fact, we could even just override addElement(), taking a recursive approach: if the first param is an instance of Zend_Config, then call addElement() using the component data.
If the atomicity and re-usability are the primary benefits we seek in using Zend_Config to describe an element, then perhaps we just make a custom element extending Zend_Form_Element. Then we could use these elements in any forms we wish.
I have a Recommendation object and a FeedbackLevel object and the FeedbackLevel object is a navigation property inside a Recommendation object
Recommendation
int EntityKey;
FeedbackLevel Level;
Inserting a new one works just fine with AddObject(). Here's what I'm trying with the update, which doesn't work.
recommendation.Level = myRepository.GetFeedbackLevel(newLevel);
_context.Recommendations.Attach(new Recommendation { EntityKey = recommendation.EntityKey });
_context.Recommendations.ApplyCurrentValues(recommendation);
_context.SaveChanges(System.Data.Objects.SaveOptions.AcceptAllChangesAfterSave);
The code above is basically a compact version of what I have. Updating a scalar property works just fine, but I can't update a new navigation property as the avove code succeeds without any changes!
I've also tried a few other methods like getting an existing Recommendation first and then re-assigning the FeedbackLevel to it without any luck.
UPDATE:
Here is what I captured from the sql profiler during the save call:
exec sp_executesql N'update [dbo].[Recommendation]
set [FeedbackComment] = #0, [LastUpdatedDate] = #1
where ([RecommendationKey] = #2)
',N'#0 varchar(255),#1 datetime,#2 int',#0='This is cool',#1='2010-01-08 10:06:06.5400000',#2=11
It looks like it does not even know that the FeedbackLevel needs to be saved. How can I get it to trigger it?
Not sure exactly what your trying to do here,
but if your trying to do an update, simple way is to
1) do a, GET [entityName] by id, use include to get any child properties
2) update the attributes
3) make sure the entity state is modified
4) Save changes
By doing a GET first, you wont need to get attach it to the context before you update, as it will be already in there.