I'm working with Swift and Firebase to write profile info to my FireBase Database.
FIRAuth.auth()?.signIn(withEmail: userEmail!, password: userPassword!) { (user, error) in
self.ref = FIRDatabase.database().reference()
self.ref?.child("Users").child(FIRAuth.auth()!.currentUser!.uid).setValue(String(describing: user))
self.ref?.child("Users").child(FIRAuth.auth()!.currentUser!.uid).child("User Email").setValue([userEmail])
I expect the Database to read as:
UID
---UserFirstName: "Insert Name Here"
But instead I get:
UID
---UserFirstName
------0: "Insert Name Here"
I know I'm just missing something basic here. this is my first shot at Swift. Nothing else I've read seems to reference this issue. I'm sure I'm just not properly representing the "key-value" relationship correctly in the syntax of the code.
I fixed it by altering my code to look like this:
self.ref?.child("Users").child(FIRAuth.auth()!.currentUser!.uid).updateChildValues(["User Email": userEmail!])
the change to updateChildValues allowed me to not overwrite myself under the node each time, and the (["User Email": userEmail!]) piece allows me to attribute the value directly to the key.
Related
I'm using this library and my model looks like this:
class PhoneTest(Model):
data = JSONField()
My JSON obj looks something like this (in a real obj there are way more fields):
{
"deviceStatus": true,
"officerCode": 123456,
"imei": 123456789123456
}
For instance, I want to get a list of all officerCodes. How do I do that ? All I've tried so far has not worked. For example this did not:
tests = PhoneTests.objects.all()
tests.distinct('data__mOfficerCode')
It gives me the following error:
NotSupportedError: DISTINCT ON fields is not supported by this database backend
But it's because I'm using this new library, not the native django mysql backend. What are possible workarounds?
I would greatly appreciate any help.
you can use values_list method
PhoneTests.objects.all().values_list('data__mOfficerCode').distinct()
I'm trying to make a N1QL based query on Spring Data Couchbase. The documentation says
#n1ql.fields will be replaced by the list of fields (eg. for a SELECT clause) necessary to reconstruct the entity.
My repository implementation is this one:
#Query("#{#n1ql.fields} WHERE #{#n1ql.filter}")
List<User> findAllByFields(String fields);
And I'm calling this query as follows:
this.userRepository.findAllByFields("SELECT firstName FROM default");
I'm getting this error:
Caused by: org.springframework.data.couchbase.core.CouchbaseQueryExecutionException: Unable to execute query due to the following n1ql errors:
{"msg":"syntax error - at AS","code":3000}
After a little bit of researching, I also tryed:
#Query("SELECT #{#n1ql.fields} FROM #{#n1ql.bucket} WHERE #{#n1ql.filter}")
With this query, I don't get an error, I get all the documents stored but only the ID the other fields are set to null, when my query tries to get the firstName field.
this.userRepository.findAllByFields("firstName");
Anyone knows how to do such a query?
Thank you in advance.
You're misunderstanding the concept, I encourage you to give the documentation more time and see more examples. I'm not sure what exactly you're trying to achieve but I'll throw some examples.
Find all users (with all of their stored data)
#Query("#{#n1ql.selectEntity} WHERE #{#n1ql.filter}")
List<User> findAllUsers();
This will basically generate SELECT meta().id,_cas,* FROM bucket WHERE type='com.example.User'
Notice findAllUsers() does not take any parameters because there are no param placeholders defined in the #Query above.
Find all users where firstName like
#Query("#{#n1ql.selectEntity} WHERE #{#n1ql.filter} AND firstName like $1")
List<User> findByFirstNameLike(String keyword);
This will generate something like the above query but with an extra where condition firstName like
Notice this method takes a keyword because there is a param placeholder defined $1.
Notice in the documentation it says
#{#n1ql.selectEntity} WHERE #{#n1ql.filter} AND test = $1
is equivalent to
SELECT #{#n1ql.fields} FROM #{#n1ql.bucket} WHERE
#{#n1ql.filter} AND test = $1
Now if you don't want to fetch all the data for user(s), you'll need to specify the fields being selected, read following links for more info
How to fetch a field from document using n1ql with spring-data-couchbase
https://docs.spring.io/spring-data/couchbase/docs/2.2.4.RELEASE/reference/html/#_dto_projections
I think you should try below query, that should resolve the issue to get fields based parameter you have sent as arguments.
Please refer blow query.
#Query("SELECT $1 FROM #{#n1q1.bucket} WHERE #{#n1ql.filter}")
List findByFirstName(String fieldName);
Here, bucket name resolve to the User entity and and n1ql.filter would be a default filter.
I want to use Jasypt with Hibernate in servlets. I refered Jasypt here. It says how to configure Hibernate. But, still it is not clear that how I can handle session to save & retrieve results. I did configurations of Hibernate as mentioned in above link(and I m not going to past them here again). Let me know how to save & retrieve data with Session.
For a simple example,lets say, I have a table called 'login' consisting 2 columns 'name','password'. column 'name' data type is varchar and 'password' is varbinary. The pojo class has variables String name and byte[] password. How can I save and retrieve data from table 'login'.At least any useful link which explain with sample codes ll be appreciated.
Edit
When I configured hibernate .hbm file & try to save as usual, an exception is also thrown.
Hi there i have some sql tables and i want to convert these in a "Drupal Node Format" but i don't know how to do it. Does someone knows at least which tables i have to write in order to have a full node with all the keys etc. ?
I will give an example :
I have theses Objects :
Anime
field animeID
field animeName
Producer
field producerID
field producerName
AnimeProducers
field animeID
field producerID
I have used the CCK module and i had created in my drupal a new Content Type Anime and a new Data Type Producer that exist in an Anime object.
How can i insert all the data from my simple mysql db into drupal ?
Sorry for the long post , i would like to give you the chance to understand my problem
Thx in advance for your time to read my post
You can use either the Feeds module to import flat CSV files, or there is a module called Migrate that seems promising (albiet pretty intense). Both work on Drupal 6 or 7.
mmmmm.... i think you can export CVS from your sql database and then use
http://drupal.org/project/node_import
to import this cvs data to nodes.....mmmm i don know if there is another non-programmatically way
The main tables for node property data are node and node_revision, have a look at the columns in those and it should be fairly obvious what needs to go in those.
As far as fields go, their storage is predictable so you would be able automate an import (although I don't envy you having to write that!). If your field is called 'field_anime' it's data will live in two tables: field_data_field_anime and field_revision_field_anime which are keyed by the entity ID (in this case node ID), entity type (in the case 'node' itself) and bundle (in this case the name of your node type). You should keep both tables up to date to ensure the revision system functions correctly.
The simplest way to do it though is with PHP and the node API functions:
/* This is for a single node, obviously you'd want to loop through your custom SQL data here */
$node = new stdClass;
$node->type = 'my_type';
$node->title = 'Title';
node_object_prepare($node);
// Fields
$node->field_anime[LANGUAGE_NONE] = array(0 => array('value' => $value_for_field));
$node->field_producer[LANGUAGE_NONE] = array(0 => array('value' => $value_for_field));
// And so on...
// Finally save the node
node_save($node);
If you use this method Drupal will handle a lot of the messy stuff for you (for example updating the taxonomy_index table automatically when adding a taxonomy term field to a node)
I am working to use django's ContentType framework to create some generic relations for a my models; after looking at how the django developers do it at django.contrib.comments.models I thought I would imitate their approach/conventions:
from django.contrib.comments.models, line 21):
content_type = models.ForeignKey(ContentType,
verbose_name='content type',
related_name="content_type_set_for_%(class)s")
object_pk = models.TextField('object ID')
content_object = generic.GenericForeignKey(ct_field="content_type", fk_field="object_pk")
That's taken from their source and, of course, their source works for me (I have comments with object_pk's stored just fine (integers, actually); however, I get an error during syncdb on table creation that ends:
_mysql_exceptions.OperationalError: (1170, "BLOB/TEXT column 'object_pk' used in key specification without a key length")
Any ideas why they can do it and I can't ?
After looking around, I noticed that the docs actually state:
Give your model a field that can store a primary-key value from the models you'll be relating to. (For most models, this means an IntegerField or PositiveIntegerField.)
This field must be of the same type as the primary key of the models that will be involved in the generic relation. For example, if you use IntegerField, you won't be able to form a generic relation with a model that uses a CharField as a primary key.
But why can they do it and not me ?!
Thanks.
PS: I even tried creating an AbstractBaseModel with these three fields, making it abstract=True and using that (in case that had something to do with it) ... same error.
After I typed out that really long question I looked at the mysql and realized that the error was stemming from:
class Meta:
unique_together = (("content_type", "object_pk"),)
Apparently, I can't have it both ways. Which leaves me torn. I'll have to open a new question about whether it is better to leave my object_pk options open (suppose I use a textfield as a primary key?) or better to enforce the unique_togetherness...