refactor(events): replace parties concept with events throughout the application

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

This commit refactors the entire application to replace the 'parties' concept with 'events'. All controllers, models, views, and related files have been updated to reflect this change. The parties table has been replaced with an events table, and all related functionality has been updated accordingly.

app/models/event.rb

@@ -0,0 +1,51 @@
+# Event model representing nightlife events and events
+# Manages event details, location data, and publication state
+class Event < ApplicationRecord
+  # Define states for Event lifecycle management
+  # draft: Initial state when Event is being created
+  # published: Event is visible to public and can be discovered
+  # canceled: Event has been canceled by organizer
+  # sold_out: Event has reached capacity and tickets are no longer available
+  enum :state, {
+    draft: 0,
+    published: 1,
+    canceled: 2,
+    sold_out: 3
+  }, default: :draft
+
+  # === Relations ===
+  belongs_to :user
+  has_many :ticket_types, dependent: :destroy
+  has_many :tickets, through: :ticket_types
+
+  # Validations for Event attributes
+  # Basic information
+  validates :name, presence: true, length: { minimum: 3, maximum: 100 }
+  validates :slug, presence: true, length: { minimum: 3, maximum: 100 }
+  validates :description, presence: true, length: { minimum: 10, maximum: 1000 }
+  validates :state, presence: true, inclusion: { in: states.keys }
+  validates :image, length: { maximum: 500 } # URL or path to image
+
+  # Venue information
+  validates :venue_name, presence: true, length: { maximum: 100 }
+  validates :venue_address, presence: true, length: { maximum: 200 }
+
+  # Geographic coordinates for map display
+  validates :latitude, presence: true, numericality: {
+    greater_than_or_equal_to: -90,
+    less_than_or_equal_to: 90
+  }
+  validates :longitude, presence: true, numericality: {
+    greater_than_or_equal_to: -180,
+    less_than_or_equal_to: 180
+  }
+
+  # Scopes for querying events with common filters
+  scope :featured, -> { where(featured: true) }  # Get featured events for homepage
+  scope :published, -> { where(state: :published) }  # Get publicly visible events
+  scope :search_by_name, ->(query) { where("name ILIKE ?", "%#{query}%") }  # Search by name (case-insensitive)
+
+  # Scope for published events ordered by start time
+  scope :upcoming, -> { published.where("start_time >= ?", Time.current).order(start_time: :asc) }
+
+end