model

问题 I have two models, called Book and Tag, which are in a HABTM relationship. I want a couple (book, tag) to be saved only once. In my models I have var $hasAndBelongsToMany = array( 'Tag' => array( 'className' => 'Tag', 'joinTable' => 'books_tags', 'foreignKey' => 'book_id', 'associationForeignKey' => 'tag_id', 'unique' => true ) ); and viceversa, but the Unique flag does not help me; I can still save two times the same couple. How do I do this in CakePHP? Should I declare the couple (book, tag

问题 I currently have a MVC site that needs to have dynamic content on the header of every page. I currently get the required data as normal in the controller and place it in a View Model. In the view, I take the data and stick the template parts in to the Viewbag and finally, on the main layout page, I take the Viewbag data and pass it to the partial which controls the header. I've read that I shouldn't use Viewbag where possible, and the amount of times I pass the data round just doesn't feel

问题 I'm trying to override in the local folder a module which is in the local folder also, but I don't know if it's possible. This is what I've done. I've created /local/Mycompany/Modulename/Model/Model.php which i'd like to override the /local/Othercompany/Modulename/Model/Model.php my model.php is: class Mycompany_Modulename_Model_Model extends Othercompany_Modulename_Model_Model { ... } and my config.xml <global> <models> <othercompanymodulename> <rewrite> <model>Mycompany_Modulename_Model

问题 Wrestling my head to model following User has many Contact categories (family/friends) One Contact category has many contacts One contact can be in one or more contact categories. I end up with following, but I still believe, there must be better solution outhere. class User < ActiveRecord::Base has_many :contact_groups def get_all_contacts self.contact_groups.each do |group| contacts << group.users end end class ContactGroup < ActiveRecord::Base has_and_belongs_to_many :users end 回答1:

问题 I have a partial view like this (simplified): @model Portal.Models.LoginModel <div class="login-container k-block"> <section id="login-form" class=""> @using (Html.BeginForm(actionName, controllerName, new { ReturnUrl = ViewBag.ReturnUrl })) { @Html.AntiForgeryToken() @Html.ValidationSummary(true) <fieldset id="login-form-list-items"> <ol> <li> @Html.LabelFor(m => m.CardNumber) @Html.TextBoxFor(m => m.CardNumber, new { @class="k-textbox"}) <div class="k-error-colored"> @Html

问题 I have QStringListModel QStringListModel* blocksModel = new QStringListModel(); And a class inherited from the QObject class Block : public QObject { Q_OBJECT public: Block(); Block(const Block& other); ~Block; //and other stuff here }; Q_DECLARE_METATYPE(Block*) When I set a data for the Qt::EditRole, everything works fine but when I'm trying to set data for the Qt::UserRole, it never returns true, and when I'm getting data I see invalid QVariant int count = blocksModel->rowCount();

问题 I have for the registration form this validation rule: validates :email, :presence => {:message => 'cannot be blank.'}, :allow_blank => true, :format => { :with => /\A[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]+\z/, :message => 'address is not valid. Please, fix it.' }, :uniqueness => true This rule check, if a user fill into the registration form email address (+ its correct format). Now I am trying to add the opportunity to log in with using Twitter. Twitter doesn't provide user's email

问题 I have a lumen application where I need to store incoming JSON Request. If I write a code like this: public function store(Request $request) { if ($request->isJson()) { $data = $request->all(); $transaction = new Transaction(); if (array_key_exists('amount', $data)) $transaction->amount = $data['amount']; if (array_key_exists('typology', $data)) $transaction->typology = $data['typology']; $result = $transaction->isValid(); if($result === TRUE ) { $transaction->save(); return $this->response-

问题 I guess simple answer to the question would be a component . Although I agree, I feel weird having to write a component for something so specific. For example, let's say I have a table of users. When a user is created, it should form a chain reaction of events, initiating different kinds of data related to the user all around the database. I figured it would be best to avoid directly manipulating the database from different controllers and instead pack all that neatly in a method. However

问题 I want to use a pre-trained word2vec model, but I don't know how to load it in python. This file is a MODEL file (703 MB). It can be downloaded here: http://devmount.github.io/GermanWordEmbeddings/ 回答1: just for loading import gensim # Load pre-trained Word2Vec model. model = gensim.models.Word2Vec.load("modelName.model") now you can train the model as usual. also, if you want to be able to save it and retrain it multiple times, here's what you should do model.train(//insert proper parameters