broadcastr/validation.py at main · cjonas9/broadcastr · GitHub

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"""
This module provides supporting functions for validation.
"""
def validate_broadcast(user_id, title, body, related_type_id):
    """
    Validates a broadcast.
    """
    if user_id == 0:
        return "Missing or invalid user"
    if title.strip() == "" and body.strip() == "":
        return "Title or body is required"
    if related_type_id == 0:
        return "Missing or invalid related type id"
    return ""

def validate_like(user_id, related_type_id, related_id, existing_like_id):
    """
    Validates a like.
    """
    if user_id == 0:
        return "Missing or invalid user"
    if related_type_id == 0:
        return "Missing or invalid related type id"
    if related_id == 0:
        return "Missing or invalid related id"
    if existing_like_id != 0:
        return "User has already liked this"

    return ""

def validate_undo_like(user_id, related_type_id, related_id, existing_like_id):
    """
    Validates a like.
    """
    if user_id == 0:
        return "Missing or invalid user"
    if related_type_id == 0:
        return "Missing or invalid related type id"
    if related_id == 0:
        return "Missing or invalid related id"
    if existing_like_id == 0:
        return "Like does not exist"
    return ""

def validate_song_swap(user_id):
    """
    Validates a song swap.
    """
    if user_id == 0:
        return "Missing or invalid user"
    return ""

def validate_add_song_swap_track(user_id, song_swap_id, track_id, user_type):
    """
    Validates adding a track to a song swap.
    """
    if user_id == 0:
        return "Missing or invalid user"
    if song_swap_id == 0:
        return "Missing or invalid song swap id"
    if track_id == 0:
        return "Missing or invalid track id"
    if user_type not in ("initiated", "matched"):
        return "Could not infer user type for song swap track update"
    return ""

def validate_add_song_swap_reaction(user_id, song_swap_id, user_type):
    """
    Validates adding a track to a song swap.
    """
    if user_id == 0:
        return "Missing or invalid user"
    if song_swap_id == 0:
        return "Missing or invalid song swap id"
    if user_type not in ("initiated", "matched"):
        return "Could not infer user type for song swap track update"
    return ""