app/models.py

   1 # Content DB
   2 # Copyright (C) 2018  rubenwardy
   3 #
   4 # This program is free software: you can redistribute it and/or modify
   5 # it under the terms of the GNU General Public License as published by
   6 # the Free Software Foundation, either version 3 of the License, or
   7 # (at your option) any later version.
   8 #
   9 # This program is distributed in the hope that it will be useful,
  10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 # GNU General Public License for more details.
  13 #
  14 # You should have received a copy of the GNU General Public License
  15 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
  16
  17
  18 from flask import Flask, url_for
  19 from flask_sqlalchemy import SQLAlchemy
  20 from flask_migrate import Migrate
  21 from urllib.parse import urlparse
  22 from app import app
  23 from datetime import datetime
  24 from sqlalchemy.orm import validates
  25 from flask_user import login_required, UserManager, UserMixin, SQLAlchemyAdapter
  26 import enum
  27
  28 # Initialise database
  29 db = SQLAlchemy(app)
  30 migrate = Migrate(app, db)
  31
  32
  33 class UserRank(enum.Enum):
  34         BANNED         = 0
  35         NOT_JOINED     = 1
  36         NEW_MEMBER     = 2
  37         MEMBER         = 3
  38         TRUSTED_MEMBER = 4
  39         EDITOR         = 5
  40         MODERATOR      = 6
  41         ADMIN          = 7
  42
  43         def atLeast(self, min):
  44                 return self.value >= min.value
  45
  46         def getTitle(self):
  47                 return self.name.replace("_", " ").title()
  48
  49         def toName(self):
  50                 return self.name.lower()
  51
  52         def __str__(self):
  53                 return self.name
  54
  55         @classmethod
  56         def choices(cls):
  57                 return [(choice, choice.getTitle()) for choice in cls]
  58
  59         @classmethod
  60         def coerce(cls, item):
  61                 return item if type(item) == UserRank else UserRank[item]
  62
  63
  64 class Permission(enum.Enum):
  65         EDIT_PACKAGE       = "EDIT_PACKAGE"
  66         APPROVE_CHANGES    = "APPROVE_CHANGES"
  67         DELETE_PACKAGE     = "DELETE_PACKAGE"
  68         CHANGE_AUTHOR      = "CHANGE_AUTHOR"
  69         MAKE_RELEASE       = "MAKE_RELEASE"
  70         ADD_SCREENSHOTS    = "ADD_SCREENSHOTS"
  71         APPROVE_SCREENSHOT = "APPROVE_SCREENSHOT"
  72         APPROVE_RELEASE    = "APPROVE_RELEASE"
  73         APPROVE_NEW        = "APPROVE_NEW"
  74         CHANGE_RELEASE_URL = "CHANGE_RELEASE_URL"
  75         CHANGE_DNAME       = "CHANGE_DNAME"
  76         CHANGE_RANK        = "CHANGE_RANK"
  77         CHANGE_EMAIL       = "CHANGE_EMAIL"
  78         EDIT_EDITREQUEST   = "EDIT_EDITREQUEST"
  79
  80         # Only return true if the permission is valid for *all* contexts
  81         # See Package.checkPerm for package-specific contexts
  82         def check(self, user):
  83                 if not user.is_authenticated:
  84                         return False
  85
  86                 if self == Permission.APPROVE_NEW or \
  87                                 self == Permission.APPROVE_CHANGES or \
  88                                 self == Permission.APPROVE_RELEASE or \
  89                                 self == Permission.APPROVE_SCREENSHOT:
  90                         return user.rank.atLeast(UserRank.EDITOR)
  91                 else:
  92                         raise Exception("Non-global permission checked globally. Use Package.checkPerm or User.checkPerm instead.")
  93
  94
  95 class User(db.Model, UserMixin):
  96         id = db.Column(db.Integer, primary_key=True)
  97
  98         # User authentication information
  99         username = db.Column(db.String(50), nullable=False, unique=True)
 100         password = db.Column(db.String(255), nullable=True)
 101         reset_password_token = db.Column(db.String(100), nullable=False, server_default="")
 102
 103         rank = db.Column(db.Enum(UserRank))
 104
 105         # Account linking
 106         github_username = db.Column(db.String(50), nullable=True, unique=True)
 107         forums_username = db.Column(db.String(50), nullable=True, unique=True)
 108
 109         # User email information
 110         email = db.Column(db.String(255), nullable=True, unique=True)
 111         confirmed_at = db.Column(db.DateTime())
 112
 113         # User information
 114         active = db.Column("is_active", db.Boolean, nullable=False, server_default="0")
 115         display_name = db.Column(db.String(100), nullable=False, server_default="")
 116
 117         # Content
 118         notifications = db.relationship("Notification", primaryjoin="User.id==Notification.user_id")
 119
 120         # causednotifs  = db.relationship("Notification", backref="causer", lazy="dynamic")
 121         packages      = db.relationship("Package", backref="author", lazy="dynamic")
 122         requests      = db.relationship("EditRequest", backref="author", lazy="dynamic")
 123
 124         def __init__(self, username, active=False, email=None, password=None):
 125                 import datetime
 126
 127                 self.username = username
 128                 self.confirmed_at = datetime.datetime.now() - datetime.timedelta(days=6000)
 129                 self.display_name = username
 130                 self.active = active
 131                 self.email = email
 132                 self.password = password
 133                 self.rank = UserRank.NOT_JOINED
 134
 135         def canAccessTodoList(self):
 136                 return Permission.APPROVE_NEW.check(self) or \
 137                                 Permission.APPROVE_RELEASE.check(self) or \
 138                                 Permission.APPROVE_CHANGES.check(self)
 139
 140         def isClaimed(self):
 141                 return self.rank.atLeast(UserRank.NEW_MEMBER)
 142
 143         def checkPerm(self, user, perm):
 144                 if not user.is_authenticated:
 145                         return False
 146
 147                 if type(perm) == str:
 148                         perm = Permission[perm]
 149                 elif type(perm) != Permission:
 150                         raise Exception("Unknown permission given to User.checkPerm()")
 151
 152                 # Members can edit their own packages, and editors can edit any packages
 153                 if perm == Permission.CHANGE_AUTHOR:
 154                         return user.rank.atLeast(UserRank.EDITOR)
 155                 elif perm == Permission.CHANGE_RANK or perm == Permission.CHANGE_DNAME:
 156                         return user.rank.atLeast(UserRank.MODERATOR)
 157                 elif perm == Permission.CHANGE_EMAIL:
 158                         return user == self or (user.rank.atLeast(UserRank.MODERATOR) and user.rank.atLeast(self.rank))
 159                 else:
 160                         raise Exception("Permission {} is not related to users".format(perm.name))
 161
 162 class UserEmailVerification(db.Model):
 163         id      = db.Column(db.Integer, primary_key=True)
 164         user_id = db.Column(db.Integer, db.ForeignKey("user.id"))
 165         email   = db.Column(db.String(100))
 166         token   = db.Column(db.String(32))
 167         user    = db.relationship("User", foreign_keys=[user_id])
 168
 169 class Notification(db.Model):
 170         id        = db.Column(db.Integer, primary_key=True)
 171         user_id   = db.Column(db.Integer, db.ForeignKey("user.id"))
 172         causer_id = db.Column(db.Integer, db.ForeignKey("user.id"))
 173         user      = db.relationship("User", foreign_keys=[user_id])
 174         causer    = db.relationship("User", foreign_keys=[causer_id])
 175
 176         title     = db.Column(db.String(100), nullable=False)
 177         url       = db.Column(db.String(200), nullable=True)
 178
 179         def __init__(self, us, cau, titl, ur):
 180                 self.user   = us
 181                 self.causer = cau
 182                 self.title  = titl
 183                 self.url    = ur
 184
 185
 186 class License(db.Model):
 187         id = db.Column(db.Integer, primary_key=True)
 188         name = db.Column(db.String(50), nullable=False, unique=True)
 189         packages = db.relationship("Package", backref="license", lazy="dynamic")
 190
 191         def __init__(self, v):
 192                 self.name = v
 193
 194         def __str__(self):
 195                 return self.name
 196
 197
 198 class PackageType(enum.Enum):
 199         MOD  = "Mod"
 200         GAME = "Game"
 201         TXP  = "Texture Pack"
 202
 203         def toName(self):
 204                 return self.name.lower()
 205
 206         def __str__(self):
 207                 return self.name
 208
 209         @classmethod
 210         def choices(cls):
 211                 return [(choice, choice.value) for choice in cls]
 212
 213         @classmethod
 214         def coerce(cls, item):
 215                 return item if type(item) == PackageType else PackageType[item]
 216
 217
 218 class PackagePropertyKey(enum.Enum):
 219         name         = "Name"
 220         title        = "Title"
 221         shortDesc    = "Short Description"
 222         desc         = "Description"
 223         type         = "Type"
 224         license      = "License"
 225         tags         = "Tags"
 226         provides     = "Provides"
 227         repo         = "Repository"
 228         website      = "Website"
 229         issueTracker = "Issue Tracker"
 230         forums       = "Forum Topic ID"
 231
 232         def convert(self, value):
 233                 if self == PackagePropertyKey.tags:
 234                         return ",".join([t.title for t in value])
 235                 elif self == PackagePropertyKey.provides:
 236                         return ",".join([t.name for t in value])
 237                 else:
 238                         return str(value)
 239
 240 provides = db.Table("provides",
 241         db.Column("package_id",    db.Integer, db.ForeignKey("package.id"), primary_key=True),
 242     db.Column("metapackage_id", db.Integer, db.ForeignKey("meta_package.id"), primary_key=True)
 243 )
 244
 245 tags = db.Table("tags",
 246     db.Column("tag_id", db.Integer, db.ForeignKey("tag.id"), primary_key=True),
 247     db.Column("package_id", db.Integer, db.ForeignKey("package.id"), primary_key=True)
 248 )
 249
 250 class Dependency(db.Model):
 251         id              = db.Column(db.Integer, primary_key=True)
 252         depender_id     = db.Column(db.Integer, db.ForeignKey("package.id"),     nullable=True)
 253         package_id      = db.Column(db.Integer, db.ForeignKey("package.id"),     nullable=True)
 254         package         = db.relationship("Package", foreign_keys=[package_id])
 255         meta_package_id = db.Column(db.Integer, db.ForeignKey("meta_package.id"), nullable=True)
 256         optional        = db.Column(db.Boolean, nullable=False, default=False)
 257         __table_args__  = (db.UniqueConstraint('depender_id', 'package_id', 'meta_package_id', name='_dependency_uc'), )
 258
 259         def __init__(self, depender=None, package=None, meta=None):
 260                 if depender is None:
 261                         return
 262
 263                 self.depender = depender
 264
 265                 packageProvided = package is not None
 266                 metaProvided = meta is not None
 267
 268                 if packageProvided and not metaProvided:
 269                         self.package = package
 270                 elif metaProvided and not packageProvided:
 271                         self.meta_package = meta
 272                 else:
 273                         raise Exception("Either meta or package must be given, but not both!")
 274
 275         def __str__(self):
 276                 if self.package is not None:
 277                         return self.package.author.username + "/" + self.package.name
 278                 elif self.meta_package is not None:
 279                         return self.meta_package.name
 280                 else:
 281                         raise Exception("Meta and package are both none!")
 282
 283         @staticmethod
 284         def SpecToList(depender, spec, cache={}):
 285                 retval = []
 286                 arr = spec.split(",")
 287
 288                 import re
 289                 pattern1 = re.compile("^([a-z0-9_]+)$")
 290                 pattern2 = re.compile("^([A-Za-z0-9_]+)/([a-z0-9_]+)$")
 291
 292                 for x in arr:
 293                         x = x.strip()
 294                         if x == "":
 295                                 continue
 296
 297                         if pattern1.match(x):
 298                                 meta = MetaPackage.GetOrCreate(x, cache)
 299                                 retval.append(Dependency(depender, meta=meta))
 300                         else:
 301                                 m = pattern2.match(x)
 302                                 username = m.group(1)
 303                                 name     = m.group(2)
 304                                 user = User.query.filter_by(username=username).first()
 305                                 if user is None:
 306                                         raise Exception("Unable to find user " + username)
 307
 308                                 package = Package.query.filter_by(author=user, name=name).first()
 309                                 if package is None:
 310                                         raise Exception("Unable to find package " + name + " by " + username)
 311
 312                                 retval.append(Dependency(depender, package=package))
 313
 314                 return retval
 315
 316
 317
 318 class Package(db.Model):
 319         id           = db.Column(db.Integer, primary_key=True)
 320
 321         # Basic details
 322         author_id    = db.Column(db.Integer, db.ForeignKey("user.id"))
 323         name         = db.Column(db.String(100), nullable=False)
 324         title        = db.Column(db.String(100), nullable=False)
 325         shortDesc    = db.Column(db.String(200), nullable=False)
 326         desc         = db.Column(db.Text, nullable=True)
 327         type         = db.Column(db.Enum(PackageType))
 328         created_at   = db.Column(db.DateTime, nullable=False, default=datetime.utcnow)
 329
 330         license_id   = db.Column(db.Integer, db.ForeignKey("license.id"))
 331
 332         approved     = db.Column(db.Boolean, nullable=False, default=False)
 333         soft_deleted = db.Column(db.Boolean, nullable=False, default=False)
 334
 335         # Downloads
 336         repo         = db.Column(db.String(200), nullable=True)
 337         website      = db.Column(db.String(200), nullable=True)
 338         issueTracker = db.Column(db.String(200), nullable=True)
 339         forums       = db.Column(db.Integer,     nullable=True)
 340
 341         provides = db.relationship("MetaPackage", secondary=provides, lazy="subquery",
 342                         backref=db.backref("packages", lazy="dynamic"))
 343
 344         dependencies = db.relationship("Dependency", backref="depender", lazy="dynamic", foreign_keys=[Dependency.depender_id])
 345
 346         tags = db.relationship("Tag", secondary=tags, lazy="subquery",
 347                         backref=db.backref("packages", lazy=True))
 348
 349         releases = db.relationship("PackageRelease", backref="package",
 350                         lazy="dynamic", order_by=db.desc("package_release_releaseDate"))
 351
 352         screenshots = db.relationship("PackageScreenshot", backref="package",
 353                         lazy="dynamic")
 354
 355         requests = db.relationship("EditRequest", backref="package",
 356                         lazy="dynamic")
 357
 358         def __init__(self, package=None):
 359                 if package is None:
 360                         return
 361
 362                 self.author_id = package.author_id
 363                 self.created_at = package.created_at
 364                 self.approved = package.approved
 365
 366                 for e in PackagePropertyKey:
 367                         setattr(self, e.name, getattr(package, e.name))
 368
 369         def getAsDictionary(self, base_url):
 370                 return {
 371                         "name": self.name,
 372                         "title": self.title,
 373                         "author": self.author.display_name,
 374                         "shortDesc": self.shortDesc,
 375                         "type": self.type.toName(),
 376                         "license": self.license.name,
 377                         "repo": self.repo,
 378                         "url": base_url + self.getDownloadURL(),
 379                         "release": self.getDownloadRelease().id if self.getDownloadRelease() is not None else None,
 380                         "screenshots": [base_url + ss.url for ss in self.screenshots],
 381                         "thumbnail": base_url + self.getThumbnailURL()
 382                 }
 383
 384         def getThumbnailURL(self):
 385                 screenshot = self.screenshots.filter_by(approved=True).first()
 386                 return screenshot.getThumbnailURL() if screenshot is not None else None
 387
 388         def getMainScreenshotURL(self):
 389                 screenshot = self.screenshots.filter_by(approved=True).first()
 390                 return screenshot.url if screenshot is not None else None
 391
 392         def getDetailsURL(self):
 393                 return url_for("package_page",
 394                                 author=self.author.username, name=self.name)
 395
 396         def getEditURL(self):
 397                 return url_for("create_edit_package_page",
 398                                 author=self.author.username, name=self.name)
 399
 400         def getApproveURL(self):
 401                 return url_for("approve_package_page",
 402                                 author=self.author.username, name=self.name)
 403
 404         def getDeleteURL(self):
 405                 return url_for("delete_package_page",
 406                                 author=self.author.username, name=self.name)
 407
 408         def getNewScreenshotURL(self):
 409                 return url_for("create_screenshot_page",
 410                                 author=self.author.username, name=self.name)
 411
 412         def getCreateReleaseURL(self):
 413                 return url_for("create_release_page",
 414                                 author=self.author.username, name=self.name)
 415
 416         def getCreateEditRequestURL(self):
 417                 return url_for("create_edit_editrequest_page",
 418                                 author=self.author.username, name=self.name)
 419
 420         def getDownloadURL(self):
 421                 return url_for("package_download_page",
 422                                 author=self.author.username, name=self.name)
 423
 424         def getDownloadRelease(self):
 425                 for rel in self.releases:
 426                         if rel.approved:
 427                                 return rel
 428
 429                 return None
 430
 431         def canImportScreenshot(self):
 432                 if self.repo is None:
 433                         return False
 434
 435                 url = urlparse(self.repo)
 436                 if url.netloc == "github.com":
 437                         return True
 438
 439                 return False
 440
 441         def canMakeReleaseFromVCS(self):
 442                 if self.repo is None:
 443                         return False
 444
 445                 url = urlparse(self.repo)
 446                 if url.netloc == "github.com":
 447                         return True
 448
 449                 return False
 450
 451         def checkPerm(self, user, perm):
 452                 if not user.is_authenticated:
 453                         return False
 454
 455                 if type(perm) == str:
 456                         perm = Permission[perm]
 457                 elif type(perm) != Permission:
 458                         raise Exception("Unknown permission given to Package.checkPerm()")
 459
 460                 isOwner = user == self.author
 461
 462                 # Members can edit their own packages, and editors can edit any packages
 463                 if perm == Permission.MAKE_RELEASE or perm == Permission.ADD_SCREENSHOTS:
 464                         return isOwner or user.rank.atLeast(UserRank.EDITOR)
 465
 466                 if perm == Permission.EDIT_PACKAGE or perm == Permission.APPROVE_CHANGES:
 467                         if isOwner:
 468                                 return user.rank.atLeast(UserRank.MEMBER if self.approved else UserRank.NEW_MEMBER)
 469                         else:
 470                                 return user.rank.atLeast(UserRank.EDITOR)
 471
 472                 # Editors can change authors
 473                 elif perm == Permission.CHANGE_AUTHOR:
 474                         return user.rank.atLeast(UserRank.EDITOR)
 475
 476                 elif perm == Permission.APPROVE_NEW or perm == Permission.APPROVE_RELEASE \
 477                                 or perm == Permission.APPROVE_SCREENSHOT:
 478                         return user.rank.atLeast(UserRank.TRUSTED_MEMBER if isOwner else UserRank.EDITOR)
 479
 480                 # Moderators can delete packages
 481                 elif perm == Permission.DELETE_PACKAGE or perm == Permission.CHANGE_RELEASE_URL:
 482                         return user.rank.atLeast(UserRank.MODERATOR)
 483
 484                 else:
 485                         raise Exception("Permission {} is not related to packages".format(perm.name))
 486
 487 class MetaPackage(db.Model):
 488         id           = db.Column(db.Integer, primary_key=True)
 489         name         = db.Column(db.String(100), unique=True, nullable=False)
 490         dependencies = db.relationship("Dependency", backref="meta_package", lazy="dynamic")
 491
 492         def __init__(self, name=None):
 493                 self.name = name
 494
 495         def __str__(self):
 496                 return self.name
 497
 498         @staticmethod
 499         def ListToSpec(list):
 500                 return ",".join([str(x) for x in list])
 501
 502         @staticmethod
 503         def GetOrCreate(name, cache={}):
 504                 mp = cache.get(name)
 505                 if mp is None:
 506                         mp = MetaPackage.query.filter_by(name=name).first()
 507
 508                 if mp is None:
 509                         mp = MetaPackage(name)
 510                         db.session.add(mp)
 511
 512                 cache[name] = mp
 513                 return mp
 514
 515         @staticmethod
 516         def SpecToList(spec, cache={}):
 517                 retval = []
 518                 arr = spec.split(",")
 519
 520                 import re
 521                 pattern = re.compile("^([a-z0-9_]+)$")
 522
 523                 for x in arr:
 524                         x = x.strip()
 525                         if x == "":
 526                                 continue
 527
 528                         if not pattern.match(x):
 529                                 continue
 530
 531                         retval.append(MetaPackage.GetOrCreate(x, cache))
 532
 533                 return retval
 534
 535 class Tag(db.Model):
 536         id              = db.Column(db.Integer,    primary_key=True)
 537         name            = db.Column(db.String(100), unique=True, nullable=False)
 538         title           = db.Column(db.String(100), nullable=False)
 539         backgroundColor = db.Column(db.String(6),   nullable=False)
 540         textColor       = db.Column(db.String(6),   nullable=False)
 541
 542         def __init__(self, title, backgroundColor="000000", textColor="ffffff"):
 543                 self.title           = title
 544                 self.backgroundColor = backgroundColor
 545                 self.textColor       = textColor
 546
 547                 import re
 548                 regex = re.compile("[^a-z_]")
 549                 self.name = regex.sub("", self.title.lower().replace(" ", "_"))
 550
 551 class PackageRelease(db.Model):
 552         id           = db.Column(db.Integer, primary_key=True)
 553
 554         package_id   = db.Column(db.Integer, db.ForeignKey("package.id"))
 555         title        = db.Column(db.String(100), nullable=False)
 556         releaseDate  = db.Column(db.DateTime,        nullable=False)
 557         url          = db.Column(db.String(200), nullable=False)
 558         approved     = db.Column(db.Boolean, nullable=False, default=False)
 559         task_id      = db.Column(db.String(37), nullable=True)
 560
 561
 562         def getEditURL(self):
 563                 return url_for("edit_release_page",
 564                                 author=self.package.author.username,
 565                                 name=self.package.name,
 566                                 id=self.id)
 567
 568         def __init__(self):
 569                 self.releaseDate = datetime.now()
 570
 571 class PackageScreenshot(db.Model):
 572         id         = db.Column(db.Integer, primary_key=True)
 573         package_id = db.Column(db.Integer, db.ForeignKey("package.id"))
 574         title      = db.Column(db.String(100), nullable=False)
 575         url        = db.Column(db.String(100), nullable=False)
 576         approved   = db.Column(db.Boolean, nullable=False, default=False)
 577
 578
 579         def getEditURL(self):
 580                 return url_for("edit_screenshot_page",
 581                                 author=self.package.author.username,
 582                                 name=self.package.name,
 583                                 id=self.id)
 584
 585         def getThumbnailURL(self):
 586                 return self.url.replace("/uploads/", "/thumbnails/350x233/")
 587
 588 class EditRequest(db.Model):
 589         id           = db.Column(db.Integer, primary_key=True)
 590
 591         package_id   = db.Column(db.Integer, db.ForeignKey("package.id"))
 592         author_id    = db.Column(db.Integer, db.ForeignKey("user.id"))
 593
 594         title        = db.Column(db.String(100), nullable=False)
 595         desc         = db.Column(db.String(1000), nullable=True)
 596
 597         # 0 - open
 598         # 1 - merged
 599         # 2 - rejected
 600         status       = db.Column(db.Integer, nullable=False, default=0)
 601
 602         changes = db.relationship("EditRequestChange", backref="request",
 603                         lazy="dynamic")
 604
 605         def getURL(self):
 606                 return url_for("view_editrequest_page",
 607                                 author=self.package.author.username,
 608                                 name=self.package.name,
 609                                 id=self.id)
 610
 611         def getApproveURL(self):
 612                 return url_for("approve_editrequest_page",
 613                                 author=self.package.author.username,
 614                                 name=self.package.name,
 615                                 id=self.id)
 616
 617         def getRejectURL(self):
 618                 return url_for("reject_editrequest_page",
 619                                 author=self.package.author.username,
 620                                 name=self.package.name,
 621                                 id=self.id)
 622
 623         def getEditURL(self):
 624                 return url_for("create_edit_editrequest_page",
 625                                 author=self.package.author.username,
 626                                 name=self.package.name,
 627                                 id=self.id)
 628
 629         def applyAll(self, package):
 630                 for change in self.changes:
 631                         change.apply(package)
 632
 633
 634         def checkPerm(self, user, perm):
 635                 if not user.is_authenticated:
 636                         return False
 637
 638                 if type(perm) == str:
 639                         perm = Permission[perm]
 640                 elif type(perm) != Permission:
 641                         raise Exception("Unknown permission given to EditRequest.checkPerm()")
 642
 643                 isOwner = user == self.author
 644
 645                 # Members can edit their own packages, and editors can edit any packages
 646                 if perm == Permission.EDIT_EDITREQUEST:
 647                         return isOwner or user.rank.atLeast(UserRank.EDITOR)
 648
 649                 else:
 650                         raise Exception("Permission {} is not related to packages".format(perm.name))
 651
 652
 653
 654
 655 class EditRequestChange(db.Model):
 656         id           = db.Column(db.Integer, primary_key=True)
 657
 658         request_id   = db.Column(db.Integer, db.ForeignKey("edit_request.id"))
 659         key          = db.Column(db.Enum(PackagePropertyKey), nullable=False)
 660
 661         # TODO: make diff instead
 662         oldValue     = db.Column(db.Text, nullable=True)
 663         newValue     = db.Column(db.Text, nullable=True)
 664
 665         def apply(self, package):
 666                 if self.key == PackagePropertyKey.tags:
 667                         package.tags.clear()
 668                         for tagTitle in self.newValue.split(","):
 669                                 tag = Tag.query.filter_by(title=tagTitle.strip()).first()
 670                                 package.tags.append(tag)
 671
 672                 else:
 673                         setattr(package, self.key.name, self.newValue)
 674
 675 # Setup Flask-User
 676 db_adapter = SQLAlchemyAdapter(db, User)        # Register the User model
 677 user_manager = UserManager(db_adapter, app)     # Initialize Flask-User