I'm studying spring data for Neo4J and I've seen some examples where you just define a method in the repository interface following some standards (to find by a specific attribute) and it's automatically handled by spring. Ex: findByName.
It works quite straightforward with basic attributes but it doesn't seems to work when the attribute is actually a relationship.
See this example:
public class AcceptOrganizationTask extends AbstractTask {
#Relationship(type="RELATES_TO", direction = "OUTGOING")
private OrganizationInvite invitation;
...
}
In the repository interface I've defined 3 methods (All with the same goal):
List<AcceptOrganizationTask> findAllByInvitation(OrganizationInvite invite);
#Query("MATCH (i:OrganizationInvite)<-[RELATES_TO]-(t:AcceptOrganizationTask) WHERE i={invite} RETURN t")
List<AcceptOrganizationTask> getTaskByInvitation(#Param("invite") OrganizationInvite invite);
AcceptOrganizationTask findByInvitation_Id(Long invitationId);
None of them are able to retrieve the task by its invite property. But if I use use findAll() I can get the object with the property associated to the correct invitation.
Am I missing something ?
Bellow I have the Cypher code generated for this three methods:
findAllByInvitation
MATCH (n:`AcceptOrganizationTask`)
WHERE n.`invitation` = { `invitation_0` }
WITH n MATCH p=(n)-[*0..1]-(m) RETURN p, ID(n)
with params {invitation_0={entityId=15, version=0, createdOn=1484758262374, lastChanged=1484758262374, createUser=null, lastUpdatedBy=null, email=user2#acme.com, randomKey=fc940b14-12c3-4894-b2b4-728e3a6b8036, invitedUser={entityId=11, version=0, createdOn=1484758261450, lastChanged=1484758261450, createUser=null, lastUpdatedBy=null, name=User user2#acme.com, email=user2#acme.com, credentialsNonExpired=true, lastPasswordResetDate=null, authorities=null, authoritiesInDB=[], accountNonExpired=true, accountNonLocked=true, enabled=true, id=11}, id=15}}
getTasksByInvitation
MATCH (i:OrganizationInvite)<-[RELATES_TO]-(t:AcceptOrganizationTask)
WHERE i={invite} RETURN t with params {invite=15}
findByInvitation_Id
MATCH (n:`AcceptOrganizationTask`)
MATCH (m0:`OrganizationInvite`)
WHERE m0.`id` = { `invitation_id_0` }
MATCH (n)-[:`RELATES_TO`]->(m0)
WITH n
MATCH p=(n)-[*0..1]-(m) RETURN p, ID(n)
with params {invitation_id_0=15}
All entities inherit from a common AbstractEntity with and Long id field, annotated with #GraphId.
Am I missing something ?
At the moment derived finder queries support only works to one level of nesting.
We are hoping to add this feature soon in the coming weeks though.
For now you can write a custom #Query to get around this.
Related
I have been searching for a solution to this for weeks, I have some documents(about 95) that I am trying to classify using GATE. I have put them in one corpus I called training_corpus, however, after ANNIE has annotated the corpus, I have to go back into each file, select all token in the document, and create an annotation called Mention, with feature type and value the class for the document. for example:
type Start End id Features
Mention 0 70000 2588 {type=neg}
Is there anyway to automatically do this with JAPE? Basically, I want to select all tokens and create a new annotation with feature(type=class). Also, the class is appended to the document. Since there are many documents, can JAPE extract the class from the document name and set it to the value of Mentions feature. Example document name is neg_data1.txt, so the annotation will be Mention.type = neg?
Any help will be greatly appreciated. Thanks
I think you answered to your question by yourself.If the class assignment based on just a token present in text - why not simply process text outside of GATE?
For example to create an xml file like:
text and then use it in training process.
Also you can create a simple JAPE rule which will:
a) will take a text within document boundaries (see gate.Utils.length methods AFAIR)
b) based on presence of your token will create a new Annotation instance with features necessary.
an abstract example:
Phase: Instance
Input: Token
Options: control = once
Rule:Instance
(
{Token}
):instance
-->
{
AnnotationSet instances = outputAS.get("INSTANCE_ANNOTATION");
FeatureMap featureMap = Factory.newFeatureMap();
if (instances!=null&&!instances.isEmpty()){
featureMap.put("features when annotation presented in doc");
}else{
featureMap.put("features when annotation not in doc");
}
outputAS.add(new Long(0), new Long(documentLength), "Mention", featureMap);
}
Is it somehow possible to add the sub-group of a cetrain group the address is assigned to the html output?
In the template I have ###MAINGROUP### and ###GROUPLIST###. I can't use maingroup, cause it's not the case that the group I need is always the maingroup. And with the grouplist I can't say which group is the sub-group of the one group.
Anyone have an idea how I could do it?
And in addition to that I also need the value of a self created field in the tt_address table.
Edit:
I try it like #lorenz say. What I have so far:
ext_localconf.php:
<?php
$GLOBALS['TYPO3_CONF_VARS']['EXTCONF']['tt_address']['extraItemMarkerHook'][]
='EXT:txnextaddresssort/class.tx_next_address_sort_addmarkers.php:tx_next_address_sort_addmarkers';
class.tx_next_address_sort_addmarkers.php:
<?php
class tx_next_address_sort_addmarkers {
function extraItemMarkerProcessor(&$markerArray, &$address, &$lConf,
&$pObj) {
$lcObj = t3lib_div::makeInstance('tslib_cObj');
$lcObj->data = $address;
$markerArray['###SORTBEREICH###'] =
$lcObj->stdWrap($address['tx_nextaddresssort_sort_bereich'],
$lConf['tx_nextaddresssort_sort_bereich.']);
}
}
Extentionkey: next_address_sort
All I get is a blank screen, but no errors in apache log
No, there is no possibility to do that.
Yet you can write a custom extension that integrates the extraItemMarkerProcessorhook in tt_address. In ext_localconf.php, add:
$GLOBALS['TYPO3_CONF_VARS']['EXTCONF']['tt_address']['extraItemMarkerHook'][] ='EXT:myextension/class.tx_myextension_filename.php:tx_myextension_classname';
Then add a file class.tx_myextension_filename.php to your extension.:
class tx_myextension_classname {
public function extraItemMarkerProcessor(&$markerArray, &$address, &$lConf, &$pObj) {
$lcObj = t3lib_div::makeInstance('tslib_cObj');
$lcObj->data = $address;
$markerArray['###MYFIELD###'] = $lcObj->stdWrap($address['myfieldlikeindatabase'], $lConf['myfieldlikeindatabase.']);
return $markerArray;
}
}
This would be an example for getting a field that is in the tt_address table and adding it to the markers so they can be used in a template. It is also stdWrap enabled.
Now, instead of getting a field, you should replace $address['myfieldlikeindatabase'] with a variable that contains the information you need. To receive the data, you can use the TYPO3 database API functions ($GLOBALS['TYPO3_DB']).
I want to extend the Wso2 CEP product in our needs and try to write a custom condition as indicated in this official wso2 cep link.
I am able to write an extension class that extends "org.wso2.siddhi.core.executor.conditon.AbstractGenericConditionExecutor" and implement its abstract method as indicated below:
#SiddhiExtension(namespace = "myext", function = "startswithA")
public class StringUtils extends
org.wso2.siddhi.core.executor.conditon.AbstractGenericConditionExecutor {
static Log log = LogFactory.getLog(StringUtils.class);
#Override
public boolean execute(AtomicEvent atomicEvent) {
log.error("Entered the execute method");
log.error("Atomic event to string: " + atomicEvent.toString());
return true;
}
}
when i use this extensioned method as:
from allEventsStream[myext:startswithA(name)]
insert into selectedEventsStream *;
In this situation, i want that startswithA method returns true if the name field has 'A' at the begining of it. However when i run this query in CEP the whole event drops into my execute function i.e. there is no sign to show that i send "name" field is sent to startswithA method as argument.
How can i understand which field of the stream is sent to my extended method as argument?
Also i want to write conditions like
from allEventsStream[myext:startswith('A', name)]
insert into selectedEventsStream *;
How can i achive this?
In 'AbstractGenericConditionExecutor' there's another method that gives you the set of expression executors that are included in the parameters when executor instantiates:
public void setExpressionExecutors(List<ExpressionExecutor> expressionExecutors)
You don't necessarily have to override this method and store the list, it is already stored there in the 'AbastractGenericConditionExecutor' as a list named expressionExecutors. You can pass the event to these executors to retrieve the relevant values from the event in order.
For an example, if you include a variable (like 'name') in the query (as a parameter at index 0), you'll get a 'VariableExpressionExecutor' in the list at index 0 that will fetch you the value of the variable from the event. Similarly for a constant like 'A', you'll get a different executor that will give you the value 'A' when called.
To add to Rajeev's answer, if you want to filter all the names that starts with 'A', you can override the execute method of your custom Siddhi extension similar to the following segment.
#Override
public boolean execute(AtomicEvent atomicEvent) {
if(!this.expressionExecutors.isEmpty()) {
String name = (String)this.expressionExecutors.get(0).execute(atomicEvent);
if(name.startsWith("A")) {
return true;
}
}
return false;
}
When writing the query, it would be similar to
from allEventStream[myext:startsWithA(name)]
insert into filteredStream *;
You can extend this behaviour to achieve an extension that supports
from allEventsStream[myext:startswith('A', name)]
type queries as well.
HTH,
Lasantha
Is there any way to parametise the Datasource for the 'source' field in the Template Builder?
We have a multisite setup. As part of this it would save a lot of time and irritation if we could point our Droptrees and Treelists point at the appropriate locations rather than common parents.
For instance:
Content
--Site1
--Data
--Site2
--Data
Instead of having to point our site at the root Content folder I want to point it at the individual data folders, so I want to do something like:
DataSource=/sitecore/content/$sitename/Data
I can't find any articles on this. Is it something that's possible?
Not by default, but you can use this technique to code your datasources:
http://newguid.net/sitecore/2013/coded-field-datasources-in-sitecore/
You could possibly use relative paths if it fits with the rest of your site structure. It could be as simple as:
./Data
But if the fields are on random items all over the tree, that might not be helpul.
Otherwise try looking at:
How to use sitecore query in datasource location? (dynamic datasouce)
You might want to look at using a Querable Datasource Location and plugging into the getRenderingDatasource pipeline.
It's really going to depend on your use cases. The thing I like about this solution is there is no need to create a whole bunch of controls which effectively do he same thing as the default Sitecore ones, and you don't have to individually code up each datasource you require - just set the query you need to get the data. You can also just set the datasource query in the __standard values for the templates.
This is very similar to Holger's suggestion, I just think this code is neater :)
Since Sitecore 7 requires VS 2012 and our company isn't going to upgrade any time soon I was forced to find a Sitecore 6 solution to this.
Drawing on this article and this one I came up with this solution.
public class SCWTreeList : TreeList
{
protected override void OnLoad(EventArgs e)
{
if (!String.IsNullOrEmpty(Source))
this.Source = SourceQuery.Resolve(SContext.ContentDatabase.Items[ItemID], Source);
base.OnLoad(e);
}
}
This creates a custom TreeList control and passes it's Source field through to a class to handle it. All that class needs to do is resolve anything you have in the Source field into a sitecore query path which can then be reassigned to the source field. This will then go on to be handled by Sitecore's own query engine.
So for our multi-site solution it enabled paths such as this:
{A588F1CE-3BB7-46FA-AFF1-3918E8925E09}/$sitename
To resolve to paths such as this:
/sitecore/medialibrary/Product Images/Site2
Our controls will then only show items for the correct site.
This is the method that handles resolving the GUIDs and tokens:
public static string Resolve(Item item, string query)
{
// Resolve tokens
if (query.Contains("$"))
{
MatchCollection matches = Regex.Matches(query, "\\$[a-z]+");
foreach (Match match in matches)
query = query.Replace(match.Value, ResolveToken(item, match.Value));
}
// Resolve GUIDs.
MatchCollection guidMatches = Regex.Matches(query, "^{[a-zA-Z0-9-]+}");
foreach (Match match in guidMatches)
{
Guid guid = Guid.Parse(match.Value);
Item queryItem = SContext.ContentDatabase.GetItem(new ID(guid));
if (item != null)
query = query.Replace(match.Value, queryItem.Paths.FullPath);
}
return query;
}
Token handling below, as you can see it requires that any item using the $siteref token is inside an Site Folder item that we created. That allows us to use a field which contains the name that all of our multi-site content folders must follow - Site Reference. As long at that naming convention is obeyed it allows us to reference folders within the media library or any other shared content within Sitecore.
static string ResolveToken(Item root, string token)
{
switch (token)
{
case "$siteref":
string sRef = string.Empty;
Item siteFolder = root.Axes.GetAncestors().First(x => x.TemplateID.Guid == TemplateKeys.CMS.SiteFolder);
if (siteFolder != null)
sRef = siteFolder.Fields["Site Reference"].Value;
return sRef;
}
throw new Exception("Token '" + token + "' is not recognised. Please disable wishful thinking and try again.");
}
So far this works for TreeLists, DropTrees and DropLists. It would be nice to get it working with DropLinks but this method does not seem to work.
This feels like scratching the surface, I'm sure there's a lot more you could do with this approach.
Actually using Zend Framework 2, I am looking for a way to implement a performant ACL strategy based on a database.
The whole idea is to directly filter the DQL queries depending on the currently logged in user, and it's permissions.
I found an implementation of this mecanisme in Symfony 2 http://symfony.com/doc/current/cookbook/security/acl_advanced.html, in this case one table seems to store for each user if he has access to a single row, so we can easily dynamically load only allowed rows by joining this table.
To synthesize,I am looking for a way to define access rules to entities based on criterias, but want to be able to get results in a single query to be able to do some ordering, and pagination.
Are there any ZF2 modules to resolve this case ?
It looks like integrating the SF2 security component as standalone is not an option: Security component from Symfony 2.0 as standalone
You have to use doctrine filter for load things for current member
example of my codes adding the filter for member query :
$em = $sm->get('doctrine.entitymanager.orm_default');
$ormconfig = $sm->get('doctrine.configuration.orm_default');
$ormconfig->addFilter("member", "\PatrickCore\Script\ORM\Functional\MemberAccessFilter");
//
$currentUser = $membersService->getCurrentUser();
$uid = $currentUser->getId();
$filter = $em->getFilters()->enable("member");
$filter->setParameter('member', $uid);
and this file \PatrickCore\Script\ORM\Functional\MemberAccessFilter :
<?php
namespace PatrickCore\Script\ORM\Functional;
use Doctrine\ORM\Mapping\ClassMetaData,
Doctrine\ORM\Query\Filter\SQLFilter;
class MemberAccessFilter extends SQLFilter
{
public function addFilterConstraint(ClassMetadata $targetEntity, $targetTableAlias)
{
// Check if the entity implements the LocalAware interface
if (!$targetEntity->reflClass->implementsInterface('\PatrickCore\Entity\MemberAccessAware')) {
return "";
}
return $targetTableAlias.'.member_id = ' . $this->getParameter('member'); // getParameter applies quoting automatically
}
}