This is to fix: Nozbe/WatermelonDB#186

Right now, deleting records is not very efficient in WatermelonDB.

Say you have models like this: Blog has_many Post has_many Comment. If you want to delete a blog post, you also have to delete all its posts, and all their comments. This happens one-by-one currently. What we need is the ability to efficiently (and atomically if

requeryVersion = '1.6.0'
requeryVersion = '1.6.1'

E/BaseViewModel: java.sql.SQLNonTransientConnectionException
    io.requery.PersistenceException: java.sql.SQLNonTransientConnectionException
        at io.requery.sql.EntityDataStore.checkConnectionMetadata(EntityDataStore.java:588)
        at io.requery.sql.EntityDataStore$DataContext.getTransactionMode(EntityDataStore.java:747)

This came to me while reading through symfony/symfony-docs#9878. In a few of those cases, people have the same entity managed by multiple entity managers. While I'm not sure whether that constitutes a valid use-case, the manager registry is equipped to handle this by allowing to specify en entity manager to use when calling AbstractManagerRegistry::getRepository.

How

Architecture as well as workflows tend to be very complex within the appserver.io environment.
We need diagrams for better documentation and overview of architecture and request/response flow.

UAC:

• There MUST be workflow diagrams showing the request/response flow
• Diagrams MUST illustrate the difference in between servlet requests and legacy ones
• There MUST be architectural diagrams
• At lea

Hello,
Using your awesome app for install Linux for old people, every week (many Linux installed). Which have sometimes old computer 32 bits, where Bodhi Linux can revival their machine. Bodhi Linux is based on Ubuntu LTS.
Bodhi Linux 4.x (Ubuntu LTS 16.04) is already supported by MultiBootUSB 9.2, but 16.04 is almost over, I need to install Bodhi Linux 5.x (LTS 18.04).
Bodhi Linux 5.x legacy 3

I have noticed that the volume method does not return the exact size of the cache, but in some scenarios there could be a discrepancy of more than 100 MB.

From the code, I gather that volume = page_size * page_count + total_file_size, where page_size * page_count is an estimate of the database size and total_file_size is the size of all file-backed entries.

The problem is that this d

I saw some commits regarding tests, so they do exist.
Can you explain how to create new tests, and how to run the existing ones?
I would like to debug issue #74 and TDD would help there.

Examples

Unit tests don't give enough info for the end-user to get up and running with. Consider BDB. There should perhaps be a README in here - https://github.com/archiecobbs/jsimpledb/tree/master/jsimpledb-kv-bdb. From that links to example projects.

Implementations

Note too that https://github.com/archiecobbs/jsimpledb (readme) does not mention Berkeley. First linked wiki page

When an 'Email' field type is added within addFields(), it is ignored. This might be a problem for other new fields as well but I haven't tested.

// Works
$model->addField('email', ['Email']);

// Doesn't work
$model->addFields([['email', ['Email']]]);