<copyField source="*_s" dest="sf_text" /
Once your configuration is correct, you can start Solr. Of course, you need a java installation.
$ cd plugins/tjSolrDoctrineBehaviorPlugin/lib/vendor/solr
$ java -jar start.jar
Solr in a production environment
In a production environment, you should run Solr as a daemon. The right way to do depends on your server's
system, however, some startup scripts are included in the lib/vendor/scripts directory.
On a debian server :
$ cp plugins/tjSolrDoctrineBehaviorPlugin/lib/vendor/scripts/debian/solr /etc/init.d/solr
$ chmod 755 /etc/init.d/solr
$ update-rc.d solr defaults
Before running Solr, you have to set the SOLR_HOME value to your solr installation path in the script.
SOLR_HOME=/var/www/myproject/plugins/tjSolrDoctrineBehaviorPlugin/lib/vendor/solr
Then you can start the daemon:
$ /etc/init.d/solr start
How to use ?
 Enabling the behavior
To index some model objects into Solr, you have to modify your schema.yml file. Add the Solr behavior
to the object type you want to index, and define which fields needs to be indexed.
Here's an example schema file:
Thread:
columns:
title:
type: string(255)
notnull: true
Post:
actAs:
Solr:
fields: [ title, body ]
columns:
thread_id:
type: integer
notnull: true
title:
type: string(255)
notnull: true
body:
type: clob
notnull: true
relations:
Thread:
onDelete: CASCADE
foreignAlias: Posts
Rebuild your model, load your data, et voilà !
Each time a Post object is created/updated/deleted, the Solr index will be automaticaly updated.
Field mapping
In the previous example, the plugin will try to index the title and body fields into Solr.
You have to manualy define those names in the Solr schema, or indexing will fail :
<field name="title" type="text" indexed="true" stored="true" multiValued="false" />
<field name="body" type="text" indexed="true" stored="true" multiValued="false" />
You also have to make sure that those fiels are copied in the "sf_text" fields :
<copyField source="title" dest="sf_text" />
<copyField source="body" dest="sf_text" />
Configuring each field in the Solr schema can be a pain. That's why this plugin allows you to use
Solr's dynamic fields.
If your model field's name matches some specific pattern, the Solr field will be automaticaly created.
For example, each field suffixed with "_t" will be created with a "text" type, and copied into the "sf_text"
default search field.
You can configure this mapping in the Doctrine schema :
Post:
actAs:
Solr:
fields: [ title, body ]
fieldmap: { title: title_t, body: body_t }
…
Look into the "dynamicField" entries in the Solr's schema to see available patterns.
Connecting to Solr
This plugins uses the default Solr connexion parameters. You can override them in the doctrine schema :
Post:
actAs:
Solr:
fields: [ title, body ]
fieldmap: { title: title_t, body: body_t }
host: localhost
post: 8389
path: '/solr'
…
If you have a Solr installation with a multicore index, and want to index differents object types,
just change the "path" parameter for each type.
Searching
Indexing is good, but searching is better.
Once you have attached the behavior to your model, it will provide a "search" method.
// returns true or false wether solr is available or not
$solrAvailable = Doctrine_Core::getTable('Post')->isSearchAvailable();
if(!$solrAvailable)
throw new sfException('Search is unavailable right now. Please come back later');
$post = new Post();
$post->title = 'test title';
$post->body = 'this is my body';
$post->Thread = new Thread();
$post->Thread->title = 'test thread';
$post->save();
// returns every indexed elements
$results = Doctrine::getTable('Post')->search('*:*');
// search in every text fields
$results = Doctrine::getTable('Post')->search('test');
// search only in "title" field
$results = Doctrine::getTable('Post')->search('title_t:test');
This plugins internaly use the solr-php-client library to
connect to Solr. The "search" method returns the solr xml response as a php object.
$results = Doctrine::getTable('Post')->search('*:*');
var_dump($results);
object(stdClass)#112 (3) {
["numFound"]=>
int(2)
["start"]=>
int(0)
["docs"]=>
array(2) {
[0]=>
object(stdClass)#113 (7) {
["sf_unique_id"]=>
string(8) "Post_598"
["sf_meta_class"]=>
string(4) "Post"
["sf_meta_id"]=>
int(598)
["timestamp"]=>
string(24) "2009-12-30T10:34:44.458Z"
["title_t"]=>
array(1) {
[0]=>
string(28) "gloubigoulba glop glop"
}
…
You can also set the offset and limit parameters.
$results = Doctrine::getTable('Post')->search('*:*', 0, 10);
Instead of a dummy php array, the plugin can also generate a Doctrine_Query object,
which you can manipulate as usual. For instance, you can modify sorting options, paginate the list,
add other criterias, etc.
$q = Doctrine::getTable('Post')->createSearchQuery('my query');
$maxResults = 50; // 256 is the function default, for a performance matter
$q2 = Doctrine::getTable('Post')->createSearchQuery('my other query', $maxResults);
There is a last available method to performs a search. You can use the solr:search task from the command line.
$ php symfony solr:search Post "my query"
$ php symfony help solr:search
reset index
Sometimes, you may want to reset the index and clear all indexed objects. There is a function to do this.
// remove all posts from solr index
Doctrine_Core::getTable('Post')->deleteIndex();
You can also do this from the command line.
$ php symfony solr:reset-index Post
$ php symfony help solr:reset-index
Transactions
Solr supports transactions. By default, the plugins sends a commit message after every index operation.
However, you may want to perform many operations in one time, then it is more efficient to send only one
commit when the job's done.
$thread = new Thread();
$thread->title = 'test tread';
$tread->save();
Doctrine_Core::getTable('Post')->beginTransaction();
for($i = 0 ; $i < 20 ; $i++)
{
$post = new Post();
$post->title = "post $i";
$post->body = 'post body';
$post->Thread = $thread
$post->save();
}
// You can use the inTransaction function to know if a transaction exists
Doctrine_Core::getTable('Post')->inTransaction(); // returns true
// After the commit, data will be available for searching
Doctrine_Core::getTable('Post')->commit();
Testing the plugin
This plugins comes with an auto-generated (with the sfTaskExtraPlugin) fixtures project, to run the tests
without touching your own app. Tests are not included in the package version, so you'll have to checkout
the trunk version.
Before you run the tests, make sure Solr is running is accessible.
Here's how you can easily run the plugin test suite :
export the SYMFONY shell var to the symfony lib path. Example :
$ export SYMFONY='/var/www/myproject/lib/vendor/symfony-1.4.1/lib/'
Setup the database for testing
The plugin's tests are made to run against an independant db. You have to create it before anything else.
mysql> CREATE DATABASE solr_doctrine_behavior_test;
mysql> GRANT ALL ON solr_doctrine_behavior_test.* TO test;
If you want to use an existing database, you have to configure the database connexion by yourself
$ php plugins/tjSolrDoctrineBehaviorPlugin/test/fixtures/project/symfony configure:database --env=test
build the bootstrap project. You don't have to load the fixtures, this will be done on time.
$ php plugins/tjSolrDoctrineBehaviorPlugin/test/fixtures/project/symfony doctrine:build --env=test --all
run the tests
$ php symfony test:plugin tjSolrDoctrineBehaviorPlugin
or, if the sfTaskExtraPlugin is not installed :
$ php plugins/tjSolrDoctrineBehaviorPlugin/test/bin/prove.php
TODO
Here's some ideas for further developpements:
- Add an option to allow or not objects modifications when solr is unavailable
- Add a task to batch index objects
- Compatibility with the i18n behavior
- Add geolocation search
- add a moreLikeThis() function
- add an option to set the default search field
Thibault Jouannic 