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Jens Ulferts 6fdd122534 merge wp tree and relations into typed_dag ... Instead of having the tree/hierarchy information for work packages and the relations between the work packages separated into two tables all the information is now stored in the relations table. To support this, the typed_dag plugin is used. Notable changes: * relations_to and relations_from are swapped. relations_to has all relations that point to another work package (from_id = work_package.id) and relations_from contains all relations that lead to the work package from another one (to_id = work_package.id). This change is merely in the code. The db information is left untouched. * For follows/precedes to_id and from_id are swapped in the db. Because of that, "follows" is now the canonical name instead of "precedes". This is done so that hierarchy relations and follows relations point into the same direction which allows to easily detect cyclic relationships that would lead to infinit scheduling. * the columns `root_id`, `lft`, `rgt` do no longer exist in the wp table. * the column `relation_type` does no longer exist in the relations table. * For every type of relation a column (integer) does now exist in the relations table (e.g. hierarchy, block, follow) * Separate associations exist for every type of relation into two directions. E.g. Work packages following the current one can be accessed via `work_package.precedes`		7 years ago
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activities	Update copyright notice	8 years ago
attachments	Update copyright notice	8 years ago
categories	Update copyright notice	8 years ago
configuration	Update copyright notice	8 years ago
custom_options	replace string object by custom option for list custom fields	8 years ago
formatter	Update copyright notice	8 years ago
help_texts	Show only attributes from the type attributes and status, project	7 years ago
priorities	Update copyright notice	8 years ago
projects	Update copyright notice	8 years ago
queries	User mentions feature (#5897)	7 years ago
relations	merge wp tree and relations into typed_dag	7 years ago
repositories	merge wp tree and relations into typed_dag	7 years ago
statuses	Update copyright notice	8 years ago
string_objects	Update copyright notice	8 years ago
support	read operations for time_entries via api v3 (#5776)	7 years ago
time_entries	read operations for time_entries via api v3 (#5776)	7 years ago
types	Update copyright notice	8 years ago
user_preferences	Replace themes with static design to be overridden once	8 years ago
users	Merge release/7.1 into dev (#5667)	8 years ago
utilities	User mentions feature (#5897)	7 years ago
versions	Update copyright notice	8 years ago
work_packages	merge wp tree and relations into typed_dag	7 years ago
root_representer_spec.rb	turn root response into hal resource	8 years ago