I have been working on project which have 2 tables posts and description. I need to implement something like multiple field searching, when i select one or more option it should display the result matching those selected option(s). Don't know how to do without bulk of if else conditions. Please help !
This is my table structure
posts table
id | posttype | featured
description
id |p_id | region | town
I have tried with if else coditions, but have to check every posible conditon.
I'd suggest to use DataTables. It is a lightweight (and free) JavaScript plugin that displays data from your database in a sortable and searchable table via AJAX. The tables are made for multiple search.
There is a good package that makes the use of DataTables together with Laravel5 easier.
When you don't want to use DataTables, try it with this Eloquent solution:
$query = "%{$theValueYouAreSearchingFor}%"
$resultSet = Posts::where('featured', 'like', $query')
->orWhereHas('description', function($query) use ($query){
$query->where('region', 'like', $query)
->orWhere('town', 'like', $query);
})
Related
In my application I want to order my posts by category in numerical order.
So I guess I need a mapping table like this:
category_id | post_id | sort_order
then setting up a kind of "Order model" with specific methods that handle it all and use this model as a relationship with the Post model.
But before I start on this project I'd like to know if there is not a Laravel package out there that does the job or another solution that I might have missed.
I'm not 100% sure, if I understand your need correctly, but I guess your posts are stored in a DB.
Then you can simply directly get the posts from DB ordered:
$posts = DB::table('posts')
->orderBy('category_id ', 'asc')
->orderBy('post_id', 'asc')
->get();
See the documentation:
https://laravel.com/docs/8.x/queries#ordering-grouping-limit-and-offset
I don't think, you need a Order model or something similar to realize this.
I'm new in laravel. I want to ask for example I have report_type model and also report model which is one to many relationship. I want to show the report_types and also the reports too. What is the best practice for this one? Should I use report.report_type only or I also have to add report in eager loading.
$report_histories = Report_history::where('report_id', $report->id)->with(['employee', 'report', 'report.report_type'])->get();
$report_histories = Report_history::with('report.report_type','employee')
->where('report_id', $report->id)
->get();
Im new to laravel and have completed a project on the latest version laravel 5.6
However, the only thing that is pending to learn and implement is the search functionality which is the core of every application. The application i have coded is a huge project and i do not want to mess it up so would like to learn how search functionality works in order to implement in multiple sections of the project.
Let's say i have a the following models 1.Country 2.State 3.City 4.Professional_Categories 5.Professionals and i have added the relations in the models accordingly
I fetch the records normally using the following code
public function index()
{
$categories = ProfessionalCategory::all();
$topprofessionals = Professional::where('status', 1)->limit(12)->get()->sortByDesc('page_views');
$professionals = Professional::where('status', 1)->latest()->paginate(9);
return view('professionals.index',compact('professionals', 'categories', 'topprofessionals'));
}
I can pull up Countries, States and Cities as i pulled in categories and with foreach i can display them in the select box. Or i could use pluck('name', 'id') that works good too. But i have never tried search queries.
I want a search form on the professionals page where a user can select country, state, city, category and type keywords in locality and professional name to find the professionals. My next step would be to learn dependent dropdown for country, state and city.
And how the results can be displayed on the view file where im currently fetching records with foreach($professionals as $professional)
I do not need code, but just a basic example on how these kind of things work in laravel. Once i learn the basics i want to implement auto suggest from database and things like that. And a single form to search all the models.
It sounds like you'll need full text searching across a number of tables and associated columns. I'd recommend using Laravel Scout or a similar service (such as elastisearch) for this.
These will index your records in a way to allow for fast and efficient fuzzy searching. Using Scout as an example, you can directly query on your models like:
$orders = App\Order::search('Star Trek')->get();
Searching with Scout
This will save you from writing numerous queries using LIKE which becomes very slow and inefficient quite quickly.
Using Eloquent you might do something like this in your Controller:
public function search(Request $request)
{
$countries = Country::where('name', 'like', '%' . $request->search_value . '%')->get();
}
This will return the countries whose name contains the search_value provided by the user.
I have write down this query
Controller
$data = User::where('name',$name)->with('country');
In User model
function country () {
return $this->belongsTo('App\Country');
}
In view
echo $data->country->name;
It is working fine but it run 2 queries :(
Select * from user where name = "xyz"
Select * from country where id = "745"
I want to stop this, I want to fetch data with one query only. Join is the solution, Is any other solution for this?
Unfortunately this is the way Eloquent works. It uses two queries because it's a simpler task to initialise your models and to avoid column naming conflicts.
If you are concerned about performance but still want some sort of querying tool, use the Query Builder shipped with Laravel.
To answer your question, joins will be your best bet.
$data=user::with('country')->where('id',745)->where('name','xyz')->get();
i hope that will help you
I'm a bit confused about how to do the following.
I have a table of articles and a table of tags with a many to many join and a pivot table between the two. I've got the relationships set up in the models
An articles can have more than one tag.
How can I easily(?) obtain a list of related articles for an article based on the tags attached to the current article.
I've tried querying from the tags side as follows:
foreach($article->tags()->get() as $tag) {
$relatedArticles .= Tag::with('articles')
->where('id','=', $tag->id)
->take(6)
->get();
}
This produces a nil response
I'm not sure about how to query from the articles to find articles with the tags dynamically.
So if an article has attached tag1 and tag2 I then want to retrieve all articles which have either tag1 or tag2 attached to them (ideally sorted on article date). The tags will be different for each article and may just be one or many.
Ideally i'd like to do this with an eloquent query but not essential - I'm not sure how to do in mysql either as a starting point.
Any help appreciated
Provided you are using Laravel 4.1, you can do something like this using the whereHas eloquent method:
$tag_ids = $article->tags()->lists('id');
$relatedArticles = Article::whereHas('tags', function($q) use ($tag_ids) {
$q->whereIn('id', $tag_ids);
})
->orderBy('created_at')
->take(6)
->get();
Breakdown
There's a few things going on here:
lists()
You can use the lists method on a select to get just a particular column, we're only concerned with the ID column in this case.
More info here: http://laravel.com/docs/queries#selects
whereHas()
We're using the new whereHas method which you can read.
More more about here: http://laravel.com/docs/eloquent#querying-relations
use()
Since the whereHas method accepts a closure (or 'anonymous function'), the function doesn't have any access to variables set externally, so we need to send them through to the function. We can do this with use.
More information here: http://www.php.net/manual/en/functions.anonymous.php