Like other data providers, csqldataprovider also supports sorting and pagination. Sorting,,yiidata provider yii\data\dataproviderinterface. In october 2006, after ten months of development, the first alpha version of yii was released, followed by the formal 1. Data widgets displaying data the definitive guide to. Cactivedataprovider implements a data provider based on activerecord. The fast, secure and professional php framework yiisoftyii2. I agree to receive these communications from sourceforge. When i used the sort function of the gridview it is still the same. By default, yii will display an edit box for the id number of a foreign key.
To work with big arrays, yiidataarraydataprovider class is used. The criteria property can be used to specify various query options. The detailview widget displays the details of a single data model. It implements the active record design pattern, a popular objectrelational mapping orm technique.
Yii is listed in the worlds largest and most authoritative dictionary database of abbreviations and acronyms. Activedatafilter activedataprovider arraydataprovider basedataprovider datafilter dataproviderinterface pagination sort sqldataprovider. It mainly supports retrieving paginated and sorted data. These data providers mainly vary in the way how the data source is specified. Sqldataprovider implements a data provider based on a plain sql statement. How to create my own dataprovider in yii using cdataprovider. Contribute to karataserkanyii2multidataprovider development by creating an account on github. Please check the guide for more details about this class. Also when handling great amounts of data for example you have a group and want to get all 5000 related users to check if an attribute matches some specific criteria it would be overkill to instantiate 5000 activerecords. Activequery activequeryinterface activequerytrait activerecord activerecordinterface activerelationtrait aftersaveevent arrayexpression baseactiverecord.
Conditioninterface, yii\db\conditions\conditioninterface. Activedataprovider, yii\data\activedataprovider api. Data providers are components that sort and paginate data, and provide them to widgets such as yii\grid\gridview, yii\widgets\listview for more details and usage information on dataproviderinterface, see the guide article on data providers. This video looks at how the web user class in the yii framework links to a userprovided model class responsible for authenticating the user.
Create a function called actiontestdb in the sitecontroller public function actiontestdb return a set of rows. In this tutorial i will show you how you can create your very first web application using the yii php framework. First thing that youll need to do is to download the yii framework. This technique is good but not the best, as you have to repeat this procedure every time come across saving multiple related models in your yii application. Yii provides secure and professional features to create robust projects rapidly. A data provider implements yii\data\dataproviderinterface. Cdataprovideriterator allows iteration over large data sets without holding the entire set in memory. I am fetching some data using csqldataprovider and its pagination page size which internally uses limit and offset. This web site is owned and operated by yii software llc, yiisoft or we. The listview widget, as well as grid view, can be used to display a table of records with features like filtering, sorting, and pagination. Big data business intelligence predictive analytics reporting. This approach should be preferred when the form is based upon a model.
Yii provides a set of data provider classes that encapsulate pagination and sorting. Cwebuser is used as an application component whose id is user. Yii createcommand queryall i posted here examples of createcommand query with properties. Yii data providers in yii yii data providers in yii courses with reference manuals and examples pdf. Thanks for contributing an answer to stack overflow. Slow handling of complex pages, steep learning curve and difficulty to customize many controls. Yii framework allows us to save both static data and your sqlactive record queries, which if used wisely can. Cactivedataprovider provides data in terms of activerecord objects which are of class modelclass. Asking for help, clarification, or responding to other answers. Stack overflow for teams is a private, secure spot for you and your coworkers to find and share information. You can use the detailview widget to display a single record. A data provider is a class implementing yii\data\dataproviderinterface. While the framework is brand new, a yii developer achieves quicker speed and perfection for development because of the cutting edge, modern technologies added to the core coding.
Data provider abstracts data set via yii \ data \dataproviderinterface and handles pagination and sorting. The above code first creates a data provider and then uses gridview to display every attribute in every row taken from the data provider. Active data provider to use yii \ data \activedataprovider, you should configure its query property. Yii provides a set of widgets that can be used to display data. I updated the page tenfold, during 300 seconds, stay 5 minutes, and reload the page where it was to see the new result. Sqldataprovider is return the data provider as array for row of query result. Csqldataprovider implements a data provider based on a plain sql statement. Add the excel extension into extension folder to download the sql data to excel. It can take either a yii \db\query or yii \db\activequery object. Cactivedataprovider may be used in the following way. To execute an sql query, you should follow these steps create an yii\db\command with an sql query bind parameters not required execute the command. We have created this page to share with you our privacy and legal policies regarding to your personal information and the contents on this site. Yii database access yii dao database access object provides an api for accessing databases.
Cwebuser represents the persistent state for a web application user. Most of the time, the user will want something more useful like a. For more details and usage information on listview, see the guide. Cactivedataprovider unofficial yii api documentation. It provides data in terms of arrays, each representing a row of query result. It uses the ar cactiverecordfindall method to retrieve the data from database. Each data model is rendered using the view specified. The following data provider classes are included in the yii releases. Cwebuser should be used together with an identity which implements the actual authentication algorithm. Dataproviderinterface, yii\data\dataproviderinterface. Csqldataprovider provides data in terms of arrays, each representing a row of query result. A data provider implements yii \ data \dataproviderinterface. How to use caching with the yii framework to improve.
It does so by modifying the given sql statement with. To save multiple related models, you need to start a transaction and save child models inside loop. In the following subsections, we will explain the detailed usage of each of these data providers. Yii started as an attempt to fix perceived drawbacks of the prado framework. Cactiverecord is the base class for classes representing relational data. Contribute to yiisoftyii2 mongodb development by creating an account on github. Therefore, at any place one can access the user state via yiiappuser. It is usually used to work with data widgets so that end users can interactively paginate and sort data. After saving all data of parent and all its child you commit the transaction.
Additionally, there are some useful methods in yii\helpers\html that are typically used for adding buttons and help text to any form. Amongst the many features that the incredible yii framework offers, a cache management system is something that couldnt have been missing. Creating forms getting data from users the definitive. Cdataprovideriterator iterates over the results of a data provider, starting at the first page of results and ending at the last page. Uses yii\db\activequery or yii\db\query to query data from databases. Yii data providers in yii tutorial 17 april 2020 learn. Creating new web app using yii data integrated entity. Yii is a highperformance php framework best for developing web 2. How to save multiple related models in yii complete solution. I tried your above code, but it orders only the records of each table, table per table, means it first orders all the records of the user table and then just the customer table. Dataproviderinterface is the interface that must be implemented by data provider classes. This particular finding is supported by the similar data provided by yii and khoo 23, by spear and seruya 24 and by the michigan breast reconstruction outcome study 25. It also serves as the foundation for other database access methods.
It can be used by grids, lists and other data widgets. The primary way of using forms in yii is through yii\widgets\activeform. It is built around the modelviewcontroller composite pattern. Like other data providers, sqldataprovider also supports sorting and pagination.
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