views

问题 When running the initial scaffold command, it auto generates a form for you based on your model. Is there any way to rerun this when you are generating a migration? It would be awesome to be able to type rails g view user or w/e that would update your views according to your new model fields. 回答1: https://github.com/justinfrench/formtastic Allows you to do this. 来源： https://stackoverflow.com/questions/10471174/rails-generate-forms-based-on-model

问题 Well as you may know, you cannot index a view with a self join. Well actually even two joins of the same table, even if it's not technically a self join. A couple of guys from microsoft came up with a work around. But it's so complicated I don't understand it!!! The solution to the problem is here: http://jmkehayias.blogspot.com/2008/12/creating-indexed-view-with-self-join.html The view I want to apply this work around to is: create VIEW vw_lookup_test WITH SCHEMABINDING AS select count_big(*

问题 I have the following code. Checks if the user is logged in or not. When the variable $is_logged_in is not set or is False, I load a message view. Unfortunately, at the same time the system loads the restricted content view. So I used die() function, and now only shows a blank page. What can I do to only load the message view when the user is not logged in? Thanks. if(!isset($is_logged_in) OR $is_logged_in == FALSE) { $data['main_content'] = 'not_logged_in'; $data['data'] = ''; $this->load-

问题 I have a Django 1.8 application with a PostgreSQL database. I run the django inspectdb from the command line to examine models for the views, but the views don't show up in the model output. Here's the version output: 17:36 $ python well/manage.py --version 1.8.2 And here's what psql sees: \dv List of relations Schema | Name | Type | Owner --------+-------------------------------+------+--------- public | hospitalizations_over_30_days | view | dwatson public | interval_30_days | view |

问题 I'm attempting to reference a view with a foreign key but I am getting this error: "Error: ORA-02270: no matching unique or primary key for this column-list" However, I have created a primary key on this view and verified it in the Constraints tab in TOAD. This is the table I'm attempting to create: CREATE TABLE QUESTION ( QUESTION_ID INTEGER not null, CREATED_USER_ID INTEGER not null, CONSTRAINT PK_QUESTION PRIMARY KEY (QUESTION_ID), CONSTRAINT FK_USER FOREIGN KEY (CREATED_USER_ID)

问题 I want to display two views on a screen. One is a randomly positioned dot bitmaps. I can get that do display with setContentView(...). I also have two bitmaps and a textview that are arranged via xml layout language and then using setContentView(R.layout.activity_title); DrawV.java !!!BASICALLY I THINK I HAVE TWO setContentViews(...) THAT I WANT TO DISPLAY AT THE SAME TIME. TELL ME IF YOU WANT MORE INFORMATION. public class DrawV extends View { VARIABES... public DrawV(Context context) {

问题 I am builng an M-V-VM application with Dynamic Loading of modules at runtime. Each of these Modules has a default view which individulally they show on the selected region when I go _regionManager.Regions["BottomMenuRegion"].Add( Container.Resolve<AdminModuleView>(), "AdminView", true); However, When the Next Module loads it overwrtites the previous loaded view.. How can I load more than one view into a region so that it creates a "Menu" displaying the default view? e.g <ItemsControl cal

问题 I'm a configuration manager and I'm working on Windows and UNIX environments. Currently, I have to create the views by myself for the developers and QA engineers. Is there any better approach? Thanks. 回答1: Yes: script the ClearCase view creation or explain them the mkview usage. Each user can then create is own view. Create views is definitely not the role of a configuration manager. 1/ Determine a view naming convention username_viewPurpose: non-UCM dynamic view username_viewPurpose_snap:

问题 I'm trying to do a navigation drawer menu with expandable elements like this --> http://goo.gl/SkMU8N I had no idea so I started by doing something like this one (not mine). https://github.com/PrashamTrivedi/DrawerLayoutTest The problem is that those rows are simple text and they looks horrible. I want to know how to modify the Adapter (or whatever) to attach my own xml files like you do with the normal drawer (example here --> http://goo.gl/phAJy). Thanks a lot!! 回答1: Here an example of

问题 How would I pass a user object or a request to my form for using it as an initial value for input textbox? For example, I have my form: class ContactForm(forms.Form): contact_name = forms.CharField(required=True, initial="???") contact_email = forms.EmailField(required=True) subjects = forms.ChoiceField(choices=emailsubjects) content = forms.CharField( required=True, widget=forms.Textarea ) def __init__(self, *args, **kwargs): self.request = kwargs.pop("request") super(ContactForm, self)._