from flask import abort, current_app from sqlalchemy import or_ from sqlalchemy.orm import subqueryload from sqlalchemy.sql.expression import func from .models import db, PackageType, Package, ForumTopic, License, MinetestRelease, PackageRelease, User, Tag, \ ContentWarning, PackageState, PackageDevState from .utils import isYes, get_int_or_abort class QueryBuilder: title = None types = None search = None def __init__(self, args): title = "Packages" # Get request types types = args.getlist("type") types = [PackageType.get(tname) for tname in types] types = [type for type in types if type is not None] if len(types) > 0: title = ", ".join([type.value + "s" for type in types]) # Get tags types tags = args.getlist("tag") tags = [Tag.query.filter_by(name=tname).first() for tname in tags] tags = [tag for tag in tags if tag is not None] # Hide self.hide_flags = set(args.getlist("hide")) self.title = title self.types = types self.tags = tags self.random = "random" in args self.lucky = "lucky" in args self.limit = 1 if self.lucky else get_int_or_abort(args.get("limit"), None) self.order_by = args.get("sort") self.order_dir = args.get("order") or "desc" if "android_default" in self.hide_flags: self.hide_flags.update(["*", "deprecated"]) self.hide_flags.discard("android_default") if "desktop_default" in self.hide_flags: self.hide_flags.update(["deprecated"]) self.hide_flags.discard("desktop_default") self.hide_nonfree = "nonfree" in self.hide_flags self.hide_wip = "wip" in self.hide_flags self.hide_deprecated = "deprecated" in self.hide_flags self.hide_flags.discard("nonfree") self.hide_flags.discard("wip") self.hide_flags.discard("deprecated") # Filters self.search = args.get("q") self.author = args.get("author") protocol_version = get_int_or_abort(args.get("protocol_version")) minetest_version = args.get("engine_version") if protocol_version or minetest_version: self.version = MinetestRelease.get(minetest_version, protocol_version) else: self.version = None self.show_discarded = isYes(args.get("show_discarded")) self.show_added = args.get("show_added") if self.show_added is not None: self.show_added = isYes(self.show_added) if self.search is not None and self.search.strip() == "": self.search = None def setSortIfNone(self, name, dir="desc"): if self.order_by is None: self.order_by = name self.order_dir = dir def getReleases(self): releases_query = db.session.query(PackageRelease.package_id, func.max(PackageRelease.id)) \ .select_from(PackageRelease).filter(PackageRelease.approved) \ .group_by(PackageRelease.package_id) if self.version: releases_query = releases_query \ .filter(or_(PackageRelease.min_rel_id == None, PackageRelease.min_rel_id <= self.version.id)) \ .filter(or_(PackageRelease.max_rel_id == None, PackageRelease.max_rel_id >= self.version.id)) return releases_query.all() def convertToDictionary(self, packages): releases = {} for [package_id, release_id] in self.getReleases(): releases[package_id] = release_id def toJson(package: Package): release_id = releases.get(package.id) return package.getAsDictionaryShort(current_app.config["BASE_URL"], release_id=release_id, no_load=True) return [toJson(pkg) for pkg in packages] def buildPackageQuery(self): if self.order_by == "last_release": query = db.session.query(Package).select_from(PackageRelease).join(Package) \ .filter_by(state=PackageState.APPROVED) else: query = Package.query.filter_by(state=PackageState.APPROVED) query = query.options(subqueryload(Package.main_screenshot), subqueryload(Package.aliases)) query = self.orderPackageQuery(self.filterPackageQuery(query)) if self.limit: query = query.limit(self.limit) return query def filterPackageQuery(self, query): if len(self.types) > 0: query = query.filter(Package.type.in_(self.types)) if self.author: author = User.query.filter_by(username=self.author).first() if not author: abort(404) query = query.filter_by(author=author) for tag in self.tags: query = query.filter(Package.tags.any(Tag.id == tag.id)) if "*" in self.hide_flags: query = query.filter(~ Package.content_warnings.any()) else: for flag in self.hide_flags: warning = ContentWarning.query.filter_by(name=flag).first() if warning: query = query.filter(~ Package.content_warnings.any(ContentWarning.id == warning.id)) if self.hide_nonfree: query = query.filter(Package.license.has(License.is_foss == True)) query = query.filter(Package.media_license.has(License.is_foss == True)) if self.hide_wip: query = query.filter(or_(Package.dev_state == None, Package.dev_state != PackageDevState.WIP)) if self.hide_deprecated: query = query.filter(or_(Package.dev_state == None, Package.dev_state != PackageDevState.DEPRECATED)) if self.version: query = query.join(Package.releases) \ .filter(PackageRelease.approved == True) \ .filter(or_(PackageRelease.min_rel_id == None, PackageRelease.min_rel_id <= self.version.id)) \ .filter(or_(PackageRelease.max_rel_id == None, PackageRelease.max_rel_id >= self.version.id)) return query def orderPackageQuery(self, query): if self.search: query = query.search(self.search, sort=self.order_by is None) if self.random: query = query.order_by(func.random()) return query to_order = None if self.order_by is None and self.search: pass elif self.order_by is None or self.order_by == "score": to_order = Package.score elif self.order_by == "reviews": query = query.filter(Package.reviews.any()) to_order = (Package.score - Package.score_downloads) elif self.order_by == "name": to_order = Package.name elif self.order_by == "title": to_order = Package.title elif self.order_by == "downloads": to_order = Package.downloads elif self.order_by == "created_at" or self.order_by == "date": to_order = Package.created_at elif self.order_by == "approved_at" or self.order_by == "date": to_order = Package.approved_at elif self.order_by == "last_release": to_order = PackageRelease.releaseDate else: abort(400) if to_order is not None: if self.order_dir == "asc": to_order = db.asc(to_order) elif self.order_dir == "desc": to_order = db.desc(to_order) else: abort(400) query = query.order_by(to_order) return query def buildTopicQuery(self, show_added=False): query = ForumTopic.query if not self.show_discarded: query = query.filter_by(discarded=False) show_added = self.show_added == True or (self.show_added is None and show_added) if not show_added: query = query.filter(~ db.exists().where(Package.forums==ForumTopic.topic_id)) if self.order_by is None or self.order_by == "name": query = query.order_by(db.asc(ForumTopic.wip), db.asc(ForumTopic.name), db.asc(ForumTopic.title)) elif self.order_by == "views": query = query.order_by(db.desc(ForumTopic.views)) elif self.order_by == "created_at" or self.order_by == "date": query = query.order_by(db.asc(ForumTopic.created_at)) if self.search: query = query.filter(or_(ForumTopic.title.ilike('%' + self.search + '%'), ForumTopic.name == self.search.lower())) if len(self.types) > 0: query = query.filter(ForumTopic.type.in_(self.types)) if self.limit: query = query.limit(self.limit) return query