Fixed hardcoded table column names in the ClosureTable model

Thanks to @devig who pointed this out in #234. This issue has been moved to #238 and fixed by this release.

Minor tweaks

1. Laravel 8 support in tests, thanks to @avvertix
2. Entity::parent() many-to-one relationship to the direct ancestor node
3. Minor tweaks

Fixed regression in the Collection::toTree() method

This is a small release which brings a fix to the regression pointed out by @ritterg.

ClosureTable 6

Improvements

1. Fixed a lot of bugs related to positioning and movements between ancestors
2. Introduced a bunch of query scopes to ease querying. They allowed to simplify the internals too!
3. Introduced some convenient methods to the custom collection in addition to the existing ones
4. Fixed bugs in the model and migration generators
5. Improved tests and automated Travis CI builds. Many many thanks to @avvertix for the latter!

Deprecations

1. Franzose\ClosureTable\Contracts\EntityInteface has been deprecated and will be removed in the next major release
2. Franzose\ClosureTable\Contracts\ClosureTableInteface has been deprecated and will be removed in the next major release
3. Entity's real_depth attribute & database column have been deprecated and are not included in the generated model and migration anymore
4. The following methods of the Entity model has been deprecated and will be removed in the next major release:
   • Entity::getRealDepthColumn()
   • Entity::getChildrenRelationIndex()
   • Entity::getAncestorsTree()
   • Entity::getAncestorsWhere()
   • Entity::getDescendantsTree()
   • Entity::getDescendantsWhere()
   • Entity::hasChildrenRelation()
   • Entity::getTree()
   • Entity::getTreeByQuery()
   • Entity::getTreeWhere()

Other notes

PHP 5.6 support has been dropped. Starting from this release, ClosureTable supports PHP 7.0 and higher.

Fixes and improvements

Fixes and improvements by @dcanaud and @gulch.

Compatibility with Laravel 5.5

Thanks to @dcanaud, the package now supports Laravel 5.5.

Minor fix

Merge pull request #194 from sh-ogawa/#193

changed: #193

Laravel 5.4 support

Thanks to @krutuzick pull request, the library now supports Laravel 5.4+.

Rolled back bindings due to PostgreSQL behavior

4.1.4

removed bindings

A fix for raw DB queries

I introduced params binding for raw queries in ClosureTable model.