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Contents
module ForestAdminDatasourceToolkit
module Utils
class Schema
def self.foreign_key?(collection, name)
field = collection.schema[:fields][name]
field.type == 'Column' &&
collection.schema[:fields].any? do |_key, relation|
relation.type == 'ManyToOne' && relation.foreign_key == name
end
end
def self.primary_key?(collection, name)
field = collection.schema[:fields][name]
field.type == 'Column' && field.is_primary_key
end
def self.primary_keys(collection)
collection.schema[:fields].keys.select do |field_name|
field = collection.schema[:fields][field_name]
field.type == 'Column' && field.is_primary_key
end
end
def self.get_to_many_relation(collection, relation_name)
unless collection.schema[:fields].key?(relation_name)
raise Exceptions::ForestException, "Relation #{relation_name} not found"
end
relation = collection.schema[:fields][relation_name]
if relation.type != 'OneToMany' && relation.type != 'ManyToMany'
raise Exceptions::ForestException,
"Relation #{relation_name} has invalid type should be one of OneToMany or ManyToMany."
end
relation
end
end
end
end
Version data entries
32 entries across 32 versions & 1 rubygems