![]() ![]() $results = DB::select('select * from users where id = ?', ) ĥ. DB::select() is a perfectly fine statement. >selectRaw("(CASE WHEN (gender = 1) THEN 'M' ELSE 'F' END) as gender_text")Ī pretty typical example is when you have an SQL statement from some older project, and you need to convert it to Eloquent or Query Builder. >selectRaw('price - discount_price AS discount') $products = Product::select('id', 'name') If you want to return one specific column as a calculation from other columns, and you want that calculation to happen in SQL query, here’s how it can look: Calculating one field with sub-query: selectRaw() $results = User::selectRaw('YEAR(birth_date) as year, COUNT(id) as amount')ģ. ![]() Also, we can use additional “where” statement after grouping, by “having” SQL statement with havingRaw().įor example, how to group by a YEAR of a certain date/time field? We have methods like groupByRaw() and orderByRaw() for this. What if you want to add some SQL calculations inside of “group by” or “order by”? Filtering YEARS: groupByRaw, orderByRaw and havingRaw ![]() >selectRaw('companies.name as company_name, avg(salary) as avg_salary, count(*) as people_count') >selectRaw('COUNT(*) as nbr', 'products.*')Īnother example – we can even perform avg() and count() in the same statement. >selectRaw('count(*) as user_count, status') If you need to perform groupBy() and then use some aggregation function from MySQL, like AVG() or COUNT(), it’s useful to perform a Raw Query for that specific section. Most Typical: selectRaw() with Avg/Sum/Count Calculations In this article, I will show you the most common examples of this approach.ġ. This closure should type-hint the type of object that it is responsible for rendering.Laravel has a great database mechanism called Eloquent, also a powerful Query Builder, but sometimes it makes sense to just use plain SQL, in the form of Raw Queries. To accomplish this, you should invoke Blade's stringable method. In these cases, Blade allows you to register a custom echo handler for that particular type of object. However, sometimes you may not have control over the _toString method of a given class, such as when the class that you are interacting with belongs to a third-party library. ![]() The _toString method is one of PHP's built-in "magic methods". If you attempt to "echo" an object using Blade, the object's _toString method will be invoked. The cached Blade views may be removed using the view:clear Artisan command. If the array element has a numeric key, it will always be included in the rendered class list:Īfter updating the logic of a Blade directive, you will need to delete all of the cached Blade views. The directive accepts an array of classes where the array key contains the class or classes you wish to add, while the value is a boolean expression. The directive conditionally compiles a CSS class string. When in a nested loop, the parent's loop variable. Whether this is an odd iteration through the loop. Whether this is an even iteration through the loop. Whether this is the last iteration through the loop. Whether this is the first iteration through the loop. The total number of items in the array being iterated. The current loop iteration (starts at 1). The index of the current loop iteration (starts at 0). Of course, as mentioned in the documentation on views, data may be passed to the Blade view using the view helper's second $loop variable also contains a variety of other useful properties: Property blade.php file extension and are typically stored in the resources/views directory.īlade views may be returned from routes or controllers using the global view helper. In fact, all Blade templates are compiled into plain PHP code and cached until they are modified, meaning Blade adds essentially zero overhead to your application. Unlike some PHP templating engines, Blade does not restrict you from using plain PHP code in your templates. Blade is the simple, yet powerful templating engine that is included with Laravel. ![]()
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