1620 deletion of child ontologies (#1748) * Make removed child ontologies "not present". * Scope default children association of acts_as_tree to present ontologies. * Show only present ontologies of this file. * Fix ontology factory. * Add cucumber features. * Fix restoring children. * Fix restoring a child ontology. * Add specs for restoring children. * Really fix restoring a child ontology. * Only save the ontology if it has changed or if it is a new record.

Check if returned value is an Ontology

Improve locId (#1618) * introduce new model to ontohub * introduce new locid behavior * adding try to prevent undefined method for nil * generate the locids by object creation * introduce method to simulate an attribute * generate Locids correctly for ontologies * correct creation of child_ontology locids * remove old uniqueness validation for ontology locid * use better names vor locidportion * correct behaviour for locid creation * generate loc_id correctly for ontology * use correct class for inherritanc * remove locids on deletion of objects * rename the base model * introduce data-migration to move the locids * remove double naming in the cat ontology * obey hound * correct behaviour of external repository for locid * change factory behaviour for locid * fix missing comma * begin to fix test * change ontology factory to new locid * change factories for new LocId Model * remove unneeded test * Use proper class retrieval in factories. * Always use to_s on the class call in LocIdBaseModel. * Always use .class.to_s instead of .class when used for the database. * Fix external repository. * Be clean and unstub again. * Fix sentence factory. * Quick fix the destruction of locids. * Fix code style. * Generate locids during create process: Base class. * Generate locids during create process: Mapping. * Generate locids during create process: Sentence. * Generate locids during create process: Symbol. * Generate locids during create process: ProofAttempt. * Generate locids during create process: ProverOutput. * Generate locids during create process: Ontology #1. * Generate locids during create process: Ontology #2. * Generate locids during create process: Ontology #3. * Generate locids during create process: Factories. * Fix seeds errors. * Fix ontology spec on error while parsing The ontology needs to be reloaded because sidekiq does so as well. It always fetches a fresh record from the database. The test failed before because `NodeEvaluationHelper#clean_ontology` called destroy on all the ontology's symbols which existed in the object, but were not really persisted because of an aborted transaction. * Remove redundant space. * Move comment to the correct line. * Fix worker_spec In the production code, the locid is never set before saving the ontology. * Add gems pry-stack_explorer, awesome_print for debugging purposes. * Only start hets if there was a hets error and rollback the changes. * Destroy dependent prover output. * Fix ProofAttempt factory. * Rename assorted_object to specific and fix migration. * Fix migration code style. * Reanalyze ontologies with duplicate locids. * Fix code style. * Remove redundancies. * Remove useless association. * Obey Hound. * Directly query in the LocIdBaseModel. * Add locid routing feature. * Cache LocId query results This should speed up the routing in a great extent. For each matching `specified_get`, the LocIdRouterConstraint fetched the element once from the database. This resulted in 8 times the same SQL query for a ProofAttempt. The implemented cache reduces this to a single query. * Clear the elements cache periodically to prevent memory leaks. * Add missing dependent: :destroy. * Add Recreating repository feature. * Combine if statements. * Change Given to When. * Catch ambiguous locid error. * Fix i18n key usage. * Fix code style. * Comment on error suppression. * Add spec for Syntax Error. * Use single-quoted strings. * Fix error message check: language. * Keep parameter assignment DRY. * Rename RecreatingRepository feature to Repository. * Use local_variable_get instead of eval. * Change locid column type to text. * Implement (implicit) down-migration. * Implement (explicit) down migration. * Add migration to create missing locids. * Fix nil error. * Really fix nil error. * Fix migration. * Fix sentence migration accessing association. * Force old Mappings to have a name. * Add missing locids to symbols.

Add pub/accessible_by scopes to OntologyVersion.

Add accessible_by scope to Ontology.

adjust find_with_iri to use the locid field.

Use lambda for scope.

Put class methods and scopes together.