Download the PHP package falconsw/elasticsearch without Composer

This is a fork of the excellent library by @basemkhirat, who sadly seems to have abandoned it by now. As we rely on this library quite heavily, we will attempt to keep it up to date and compatible with newer Laravel and Elasticsearch versions.

Laravel, Lumen and Native php elasticseach query builder to build complex queries using an elegant syntax

• Keeps you away from wasting your time by replacing array queries with a simple and elegant syntax you will love.
• Elasticsearch data model for types and indices inspired from laravel eloquent.
• Feeling free to create, drop, mapping and reindexing through easy artisan console commands.
• Lumen framework support.
• Native php and composer based applications support.
• Can be used as a laravel scout driver.
• Dealing with multiple elasticsearch connections at the same time.
• Awesome pagination based on LengthAwarePagination.
• Caching queries using a caching layer over query builder built on laravel cache.

Requirements

• php >= 5.6.6

  See Travis CI Builds.

• laravel/laravel >= 5. or laravel/lumen >= 5. or composer application

Documentation

See Full Documentation.

Installation

Laravel Installation

1) Install package using composer.

2) Add package service provider (< laravel 5.5).

3) Add package alias (< laravel 5.5).

4) Publishing.

Lumen Installation

1) Install package using composer.

2) Add package service provider in bootstrap/app.php.

3) Copy package config directory vendor/falconsw/elasticsearch/src/config to root folder alongside with app directory.

4) Making Lumen work with facades by uncommenting this line in bootstrap/app.php.

If you don't want to enable working with Lumen facades you can access the query builder using app("es").

Composer Installation

You can install package with any composer-based applications

1) Install package using composer.

2) Creating a connection.

Configuration (Laravel & Lumen)

After publishing, two configuration files will be created.

• config/es.php where you can add more than one elasticsearch server.

• config/scout.php where you can use package as a laravel scout driver.

Working with console environment (Laravel & Lumen)

With some artisan commands you can do some tasks such as creating or updating settings, mappings and aliases.

Note that all commands are running with --connection=default option, you can change it through the command.

These are all available commands:

List All indices on server

Create indices defined in es.php config file

Note that creating operation skips the index if exists.

Update indices defined in es.php config file

Note that updating operation updates indices setting, aliases and mapping and doesn't delete the indexed data.

Drop index

Be careful when using this command, you will lose your index data!

Running drop command with --force option will skip all confirmation messages.

Reindexing data (with zero downtime)

First, why reindexing?

Changing index mapping doesn't reflect without data reindexing, otherwise your search results will not work on the right way.

To avoid down time, your application should work with index alias not index name.

The index alias is a constant name that application should work with to avoid change index names.

Assume that we want to change mapping for my_index, this is how to do that:

1) Add alias as example my_index_alias to my_index configuration and make sure that application is working with.

2) Update index with command:

3) Create a new index as example my_new_index with your new mapping in configuration file.

4) Reindex data from my_index into my_new_index with command:

5) Remove my_index_alias alias from my_index and add it to my_new_index in configuration file and update with command:

Usage as a Laravel Scout driver

First, follow Laravel Scout installation.

All you have to do is updating these lines in config/scout.php configuration file.

Have a look at laravel Scout documentation.

Elasticsearch data model

Each index type has a corresponding "Model" which is used to interact with that type. Models allow you to query for data in your types or indices, as well as insert new documents into the type.

Basic usage

The above example will use the default connection and default index in es.php. You can override both in the next example.

Retrieving Models

Once you have created a model and its associated index type, you are ready to start retrieving data from your index. For example:

Adding Additional Constraints

The all method will return all of the results in the model's type. Each elasticsearch model serves as a query builder, you may also add constraints to queries, and then use the get() method to retrieve the results:

Retrieving Single Models

Inserting Models

To create a new document, simply create a new model instance, set attributes on the model, then call the save() method:

Updating Models

The save() method may also be used to update models that already exist. To update a model, you should retrieve it, set any attributes you wish to update, and then call the save method.

Deleting Models

To delete a model, call the delete() method on a model instance:

Query Scopes

Scopes allow you to define common sets of constraints that you may easily re-use throughout your application. For example, you may need to frequently retrieve all posts that are considered "popular". To define a scope, simply prefix an Eloquent model method with scope.

Scopes should always return a Query instance.

Once the scope has been defined, you may call the scope methods when querying the model. However, you do not need to include the scope prefix when calling the method. You can even chain calls to various scopes, for example:

Accessors & Mutators

Defining An Accessor

To define an accessor, create a getFooAttribute method on your model where Foo is the "studly" cased name of the column you wish to access. In this example, we'll define an accessor for the title attribute. The accessor will automatically be called by model when attempting to retrieve the value of the title attribute:

As you can see, the original value of the column is passed to the accessor, allowing you to manipulate and return the value. To access the value of the accessor, you may simply access the title attribute on a model instance:

Occasionally, you may need to add array attributes that do not have a corresponding field in your index. To do so, simply define an accessor for the value:

Once you have created the accessor, just add the value to the appends property on the model:

Once the attribute has been added to the appends list, it will be included in model's array.

Defining A Mutator

To define a mutator, define a setFooAttribute method on your model where Foo is the "studly" cased name of the column you wish to access. So, again, let's define a mutator for the title attribute. This mutator will be automatically called when we attempt to set the value of the titleattribute on the model:

The mutator will receive the value that is being set on the attribute, allowing you to manipulate the value and set the manipulated value on the model's internal $attributes property. So, for example, if we attempt to set the title attribute to Awesome post to read:

In this example, the setTitleAttribute function will be called with the value Awesome post to read. The mutator will then apply the strtolower function to the name and set its resulting value in the internal $attributes array.

Attribute Casting

The $casts property on your model provides a convenient method of converting attributes to common data types. The $casts property should be an array where the key is the name of the attribute being cast and the value is the type you wish to cast the column to. The supported cast types are: integer, float, double, string, boolean, object and array.

For example, let's cast the is_published attribute, which is stored in our index as an integer (0 or 1) to a boolean value:

Now the is_published attribute will always be cast to a boolean when you access it, even if the underlying value is stored in the index as an integer:

Usage as a query builder

Creating a new index

Creating index with custom options (optional)

Dropping index

Running queries

You can rewrite the above query to

The query builder will use the default connection, index name in configuration file es.php.

Connection and index names in query overrides connection and index names in configuration file es.php.

Getting document by id

Sorting

Limit and offset

Select only specific fields

Where clause

Where greater than

Where greater than or equal

Where less than

Where less than or equal

Where like

Where field exists

Where in clause

Where between clause

Where not clause

Where not greater than

Where not greater than or equal

Where not less than

Where not less than or equal

Where not like

Where not field exists

Where not in clause

Where not between clause

Search by a distance from a geo point

Search using array queries

Search the entire document

Search with highlight fields

Return only first record

Return only count

Scan-and-Scroll queries

Paginate results with 5 records per page

These are all pagination methods you may use:

Getting the query array without execution

Getting the original elasticsearch response

Ignoring bad HTTP response

Query Caching (Laravel & Lumen)

Package comes with a built-in caching layer based on laravel cache.

Executing elasticsearch raw queries

Insert a new document

Bulk insert a multiple of documents at once.

Update an existing document

Incrementing field

Decrementing field

Update using script

Delete a document

License

MIT

Have a happy searching..