computed-field

问题 I would like to return a different result for a computed field when viewing the index view than when viewing the detail view of a resource. Basically something like viewIs() below: Text::make('Preview', function () { if($this->viewIs('index'){ return \small_preview($this->image); } return \large_preview($this->image); })->asHtml(), 回答1: You can check the class of the request: Text::make('Preview', function () use ($request) { if ($request instanceof \Laravel\Nova\Http\Requests

问题 I am using the below T-SQL to create a table with a computed column which gives me IDs in 'BID(The Year)-0000' . The issue is that I would like to reset the series of zeros in the ID when the year is changed.For example, the last ID in the table is BID2017-0923 when the year is changed I want the series to be reset for example 'BID2018-0001' . Here is the T-SQL which currently I am using. CREATE TABLE Books ( ID INT IDENTITY(1,1) NOT NULL PRIMARY KEY, IDCreateDate DATETIME NOT NULL DEFAULT

问题 I have a State with flights, and I have a slider to change the max price to change visibility of the flight elements. maxpriceFilter() { var flightOffer = this.state.flightOffer; var sliderPrice = this.state.sliderPrice; for (var i = 0; i < flightOffer.length; i++) { if( flightOffer[i].price > sliderPrice) { this.setState( {[flightOffer[i].hiddenprice] : true} ); }; } This code is adding a undefined field with status true in the root of the state though.. I cant find any best practice on this