Fully implemented Django ORM for Database operations
tylerklane
parent
0d98ac8477
commit
d1eceb19c9
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@ -1,12 +1,17 @@
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import uuid
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import os
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import django
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import sys
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try:
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from .config import Database
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except ImportError:
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from config import Database
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current_script_path = os.path.dirname(os.path.abspath(__file__))
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project_root = os.path.join(current_script_path, '..', '..', '..')
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sys.path.insert(0, os.path.abspath(project_root))
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from django.db import connection
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os.environ.setdefault('DJANGO_SETTINGS_MODULE', "alttextbackend.settings")
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django.setup()
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from alttextbackend.data.postgres.models import Book
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"""
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@ -19,14 +24,6 @@ BOOKS DATABASE ATTRIBUTES
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coverExt: str
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"""
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def createBookTable():
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query = "CREATE TABLE books (id varchar(255) NOT NULL PRIMARY KEY, title varchar(255), size varchar(255), status varchar(255), numImages int, coverExt varchar(255));"
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with connection.cursor() as cursor:
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cursor.execute(query)
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return cursor.fetchall()
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def jsonifyBook(book: tuple):
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return {
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"id": book[0],
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@ -39,37 +36,34 @@ def jsonifyBook(book: tuple):
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def getBook(id: str):
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db = Database()
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query = "SELECT * FROM books WHERE id = %s"
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params = (id,)
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db.sendQuery(query, params)
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book = db.fetchOne()
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db.close()
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return book
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book_tuple = Book.objects.filter(id=id).values_list(
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'id', 'title', 'size', 'status', 'numImages', 'coverExt', named=False
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).first()
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# Check if a book was found; if not, return None
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if book_tuple is None:
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return None
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return book_tuple
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def getBooks(titleQ: str = None, limit: int = None, skip: int = None):
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db = Database()
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params = []
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query = "SELECT * FROM books"
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books_query = Book.objects.all()
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# Filter by title if a title query is provided
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if titleQ:
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lowerTitleQ = f"%{titleQ.lower()}%"
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query += " WHERE LOWER(title) LIKE %s"
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params.append(lowerTitleQ)
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if limit is not None:
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query += " LIMIT %s"
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params.append(limit)
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books_query = books_query.filter(title__icontains=titleQ)
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# Apply limit and skip (offset) if provided
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if skip is not None:
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query += " OFFSET %s"
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params.append(skip)
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books_query = books_query[skip:] # Skip the first `skip` records
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if limit is not None:
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books_query = books_query[:limit] # Take `limit` records from the query set
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db.sendQuery(query, params)
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books = db.fetchAll()
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db.close()
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return books
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# Execute the query and fetch the results
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books = books_query.values_list('id', 'title', 'size', 'status', 'numImages', 'coverExt', flat=False)
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return list(books)
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def addBook(
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@ -83,48 +77,30 @@ def addBook(
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if id == None:
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id = str(uuid.uuid4())
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db = Database()
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query = "INSERT INTO books (id, title, status, numimages, size, coverext) VALUES (%s, %s, %s, %s, %s, %s);"
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params = (id, title, status, numImages, size, coverExt)
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db.sendQuery(query, params)
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db.commit()
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db.close()
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newBook = Book(
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id=id,
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title=title,
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size=size,
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numImages=numImages,
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status=status,
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coverExt=coverExt
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)
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newBook.save()
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return getBook(id)
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def deleteBook(id: str):
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db = Database()
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query = "DELETE FROM books WHERE id = %s"
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params = (id,)
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db.sendQuery(query, params)
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db.commit()
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db.close()
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myBook = Book.objects.get(id=id)
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myBook.delete()
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def updateBook(id: str, title: str = None, status: str = None, coverExt: str = None):
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db = Database()
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update_fields = {}
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if title is not None:
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update_fields['title'] = title
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if status is not None:
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update_fields['status'] = status
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if coverExt is not None:
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update_fields['coverExt'] = coverExt
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if title or status or coverExt:
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params = []
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query = "UPDATE books SET"
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if title:
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query += " title = %s,"
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params.append(title)
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if status:
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query += " status = %s,"
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params.append(status)
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if coverExt:
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query += " coverext = %s,"
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params.append(coverExt)
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query = query[:-1]
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query += " WHERE id = %s"
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params.append(id)
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db.sendQuery(query, params)
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db.commit()
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db.close()
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if update_fields:
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Book.objects.filter(id=id).update(**update_fields)
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@ -1,7 +1,17 @@
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try:
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from .config import Database
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except ImportError:
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from config import Database
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import sys
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import os
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import django
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current_script_path = os.path.dirname(os.path.abspath(__file__))
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project_root = os.path.join(current_script_path, '..', '..', '..')
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sys.path.insert(0, os.path.abspath(project_root))
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os.environ.setdefault('DJANGO_SETTINGS_MODULE', "alttextbackend.settings")
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django.setup()
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from alttextbackend.data.postgres.models import Image, Book
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"""
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IMAGE DATABASE ATTRIBUTES
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@ -19,15 +29,6 @@ IMAGE DATABASE ATTRIBUTES
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additionalContext: str
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"""
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def createImageTable():
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db = Database()
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query = "CREATE TABLE images (bookid varchar(255) NOT NULL, src varchar(255) NOT NULL, hash varchar(255), status varchar(255), alt varchar(1000), originalAlt varchar(1000), genAlt varchar(1000), genImageCaption varchar(1000), ocr varchar(1000), beforeContext varchar(2000), afterContext varchar(2000), additionalContext varchar(1000), CONSTRAINT PK_Image PRIMARY KEY (bookid, src), FOREIGN KEY (bookid) REFERENCES books(id) ON DELETE CASCADE);"
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db.sendQuery(query)
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db.commit()
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db.close()
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def jsonifyImage(image: tuple):
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return {
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"bookid": image[0],
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@ -46,33 +47,39 @@ def jsonifyImage(image: tuple):
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def getImageByBook(bookid: str, src: str):
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db = Database()
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query = "SELECT * FROM images WHERE bookid = %s AND src = %s"
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params = (bookid, src)
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db.sendQuery(query, params)
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image = db.fetchOne()
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db.close
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return image
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book = Book.objects.get(id=bookid)
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image_tuple = Image.objects.filter(book=book, src=src).values_list(
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'book_id', 'src', 'hash', 'status', 'alt', 'originalAlt',
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'genAlt', 'genImageCaption', 'ocr', 'beforeContext',
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'afterContext', 'additionalContext', named=False
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).first()
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# Check if an image was found; if not, return None
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if image_tuple is None:
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return None
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return image_tuple
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def getImagesByBook(bookid: str):
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db = Database()
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query = "SELECT * FROM images WHERE bookid = %s"
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params = (bookid,)
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db.sendQuery(query, params)
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images = db.fetchAll()
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db.close()
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return images
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book = Book.objects.get(id=bookid)
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images_tuples = Image.objects.filter(book=book).values_list(
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'book_id', 'src', 'hash', 'status', 'alt', 'originalAlt',
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'genAlt', 'genImageCaption', 'ocr', 'beforeContext',
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'afterContext', 'additionalContext', named=False
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)
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return list(images_tuples)
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def getImagesByHash(hash: str):
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db = Database()
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query = "SELECT * FROM images WHERE hash = %s"
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params = (hash,)
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db.sendQuery(query, params)
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images = db.fetchAll()
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db.close()
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return images
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images_tuples = Image.objects.filter(hash=hash).values_list(
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'book_id', 'src', 'hash', 'status', 'alt', 'originalAlt',
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'genAlt', 'genImageCaption', 'ocr', 'beforeContext',
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'afterContext', 'additionalContext', named=False
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)
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return list(images_tuples)
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def addImage(
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@ -89,53 +96,42 @@ def addImage(
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afterContext: str = None,
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additionalContext: str = None,
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):
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db = Database()
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query = "INSERT INTO images (bookid, src, hash, status, alt, originalalt, genalt, genimagecaption, ocr, beforecontext, aftercontext, additionalcontext) VALUES (%s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s);"
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if status != "available" and status != "processing":
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status = "available"
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if alt is not None:
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alt = alt[:1000]
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if originalAlt is not None:
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originalAlt = originalAlt[:1000]
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if genAlt is not None:
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genAlt = genAlt[:1000]
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if genImageCaption is not None:
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genImageCaption = genImageCaption[:1000]
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if ocr is not None:
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ocr = ocr[:1000]
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if beforeContext is not None:
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beforeContext = beforeContext[:2000]
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if afterContext is not None:
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afterContext = afterContext[:2000]
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if additionalContext is not None:
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additionalContext = additionalContext[:1000]
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params = (
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bookid,
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src,
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hash,
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status,
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alt,
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originalAlt,
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genAlt,
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genImageCaption,
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ocr,
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beforeContext,
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afterContext,
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additionalContext,
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status = status if status in ["available", "processing"] else "available"
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# Truncate strings to their maximum allowed length based on the model's definitions
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alt = alt[:1000] if alt is not None else None
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originalAlt = originalAlt[:1000] if originalAlt is not None else None
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genAlt = genAlt[:1000] if genAlt is not None else None
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genImageCaption = genImageCaption[:1000] if genImageCaption is not None else None
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ocr = ocr[:1000] if ocr is not None else None
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beforeContext = beforeContext[:2000] if beforeContext is not None else None
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afterContext = afterContext[:2000] if afterContext is not None else None
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additionalContext = additionalContext[:1000] if additionalContext is not None else None
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book_instance = Book.objects.get(id=bookid)
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# Create and save the new Image instance
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new_image = Image.objects.create(
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book=book_instance,
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src=src,
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hash=hash,
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status=status,
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alt=alt,
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originalAlt=originalAlt,
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genAlt=genAlt,
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genImageCaption=genImageCaption,
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ocr=ocr,
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beforeContext=beforeContext,
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afterContext=afterContext,
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additionalContext=additionalContext,
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)
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db.sendQuery(query, params)
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db.commit()
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db.close()
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return getImageByBook(bookid, src)
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return new_image
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def deleteImage(bookid: str, src: str):
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db = Database()
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query = "DELETE FROM images WHERE bookid = %s AND src = %s;"
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params = (bookid, src)
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db.sendQuery(query, params)
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db.commit()
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db.close()
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book = Book.objects.get(id=bookid)
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Image.objects.filter(book=book, src=src).delete()
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def updateImage(
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@ -150,59 +146,25 @@ def updateImage(
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afterContext: str = None,
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additionalContext: str = None,
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):
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db = Database()
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update_fields = {}
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if status is not None:
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update_fields['status'] = status
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if alt is not None:
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update_fields['alt'] = alt
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if genAlt is not None:
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update_fields['genAlt'] = genAlt
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if genImageCaption is not None:
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update_fields['genImageCaption'] = genImageCaption
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if ocr is not None:
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update_fields['ocr'] = ocr
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if beforeContext is not None:
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update_fields['beforeContext'] = beforeContext
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if afterContext is not None:
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update_fields['afterContext'] = afterContext
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if additionalContext is not None:
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update_fields['additionalContext'] = additionalContext
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if (
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status
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or alt
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or genAlt
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or genImageCaption
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or ocr
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or beforeContext
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or afterContext
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or additionalContext
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):
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params = []
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query = "UPDATE images SET"
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if status:
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query += " status = %s,"
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params.append(status)
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if alt:
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query += " alt = %s,"
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params.append(alt)
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if genAlt:
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query += " genalt = %s,"
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params.append(genAlt)
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if genImageCaption:
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query += " genimagecaption = %s,"
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params.append(genImageCaption)
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if ocr:
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query += " ocr = %s,"
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params.append(ocr)
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if beforeContext:
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query += " beforecontext = %s,"
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params.append(beforeContext)
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if afterContext:
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query += " aftercontext = %s,"
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params.append(afterContext)
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if additionalContext:
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query += " additionalcontext = %s,"
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params.append(additionalContext)
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query = query[:-1]
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query += " WHERE bookid = %s AND src = %s"
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params.append(bookid)
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params.append(src)
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db.sendQuery(query, params)
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db.commit()
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db.close()
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# Only execute the update if there are fields to update
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if update_fields:
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book = Book.objects.get(id=bookid)
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Image.objects.filter(book=book, src=src).update(**update_fields)
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@ -0,0 +1,25 @@
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# Generated by Django 5.0.3 on 2024-03-26 23:12
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from django.db import migrations, models
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class Migration(migrations.Migration):
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initial = True
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dependencies = [
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]
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operations = [
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migrations.CreateModel(
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name='Book',
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fields=[
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('id', models.CharField(max_length=255, primary_key=True, serialize=False)),
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('title', models.CharField(blank=True, max_length=255, null=True)),
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('size', models.CharField(blank=True, max_length=255, null=True)),
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('status', models.CharField(blank=True, max_length=255, null=True)),
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('num_images', models.IntegerField(blank=True, null=True)),
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('cover_ext', models.CharField(blank=True, max_length=255, null=True)),
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],
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),
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]
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@ -0,0 +1,35 @@
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# Generated by Django 5.0.3 on 2024-03-27 20:32
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import django.db.models.deletion
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from django.db import migrations, models
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class Migration(migrations.Migration):
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dependencies = [
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('postgres', '0001_initial'),
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]
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operations = [
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migrations.CreateModel(
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name='Image',
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fields=[
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('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
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('src', models.CharField(max_length=255)),
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('hash', models.CharField(blank=True, max_length=255, null=True)),
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('status', models.CharField(blank=True, max_length=255, null=True)),
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('alt', models.TextField(blank=True, null=True)),
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('original_alt', models.TextField(blank=True, null=True)),
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('gen_alt', models.TextField(blank=True, null=True)),
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('gen_image_caption', models.TextField(blank=True, null=True)),
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('ocr', models.TextField(blank=True, null=True)),
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('before_context', models.TextField(blank=True, null=True)),
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('after_context', models.TextField(blank=True, null=True)),
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('additional_context', models.TextField(blank=True, null=True)),
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('book', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='postgres.book')),
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],
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options={
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'unique_together': {('book', 'src')},
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},
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),
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]
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@ -0,0 +1,21 @@
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# Generated by Django 5.0.3 on 2024-03-27 20:34
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from django.db import migrations
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class Migration(migrations.Migration):
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dependencies = [
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('postgres', '0002_image'),
|
||||
]
|
||||
|
||||
operations = [
|
||||
migrations.AlterModelTable(
|
||||
name='book',
|
||||
table='book',
|
||||
),
|
||||
migrations.AlterModelTable(
|
||||
name='image',
|
||||
table='image',
|
||||
),
|
||||
]
|
||||
|
|
@ -0,0 +1,53 @@
|
|||
# Generated by Django 5.0.3 on 2024-03-27 23:00
|
||||
|
||||
from django.db import migrations
|
||||
|
||||
|
||||
class Migration(migrations.Migration):
|
||||
|
||||
dependencies = [
|
||||
('postgres', '0003_alter_book_table_alter_image_table'),
|
||||
]
|
||||
|
||||
operations = [
|
||||
migrations.RenameField(
|
||||
model_name='book',
|
||||
old_name='cover_ext',
|
||||
new_name='coverExt',
|
||||
),
|
||||
migrations.RenameField(
|
||||
model_name='book',
|
||||
old_name='num_images',
|
||||
new_name='numImages',
|
||||
),
|
||||
migrations.RenameField(
|
||||
model_name='image',
|
||||
old_name='additional_context',
|
||||
new_name='additionalContext',
|
||||
),
|
||||
migrations.RenameField(
|
||||
model_name='image',
|
||||
old_name='after_context',
|
||||
new_name='afterContext',
|
||||
),
|
||||
migrations.RenameField(
|
||||
model_name='image',
|
||||
old_name='before_context',
|
||||
new_name='beforeContext',
|
||||
),
|
||||
migrations.RenameField(
|
||||
model_name='image',
|
||||
old_name='gen_alt',
|
||||
new_name='genAlt',
|
||||
),
|
||||
migrations.RenameField(
|
||||
model_name='image',
|
||||
old_name='gen_image_caption',
|
||||
new_name='genImageCaption',
|
||||
),
|
||||
migrations.RenameField(
|
||||
model_name='image',
|
||||
old_name='original_alt',
|
||||
new_name='originalAlt',
|
||||
),
|
||||
]
|
||||
|
|
@ -0,0 +1,21 @@
|
|||
# Generated by Django 5.0.3 on 2024-03-27 23:05
|
||||
|
||||
from django.db import migrations
|
||||
|
||||
|
||||
class Migration(migrations.Migration):
|
||||
|
||||
dependencies = [
|
||||
('postgres', '0004_rename_cover_ext_book_coverext_and_more'),
|
||||
]
|
||||
|
||||
operations = [
|
||||
migrations.AlterModelTable(
|
||||
name='book',
|
||||
table='books',
|
||||
),
|
||||
migrations.AlterModelTable(
|
||||
name='image',
|
||||
table='images',
|
||||
),
|
||||
]
|
||||
|
|
@ -0,0 +1,36 @@
|
|||
from django.db import models
|
||||
|
||||
class Book(models.Model):
|
||||
id = models.CharField(max_length=255, primary_key=True)
|
||||
title = models.CharField(max_length=255, blank=True, null=True)
|
||||
size = models.CharField(max_length=255, blank=True, null=True)
|
||||
status = models.CharField(max_length=255, blank=True, null=True)
|
||||
numImages = models.IntegerField(null=True, blank=True)
|
||||
coverExt = models.CharField(max_length=255, blank=True, null=True)
|
||||
|
||||
class Meta:
|
||||
db_table = 'books'
|
||||
|
||||
def __str__(self):
|
||||
return self.title
|
||||
|
||||
class Image(models.Model):
|
||||
book = models.ForeignKey('Book', on_delete=models.CASCADE)
|
||||
src = models.CharField(max_length=255)
|
||||
hash = models.CharField(max_length=255, blank=True, null=True)
|
||||
status = models.CharField(max_length=255, blank=True, null=True)
|
||||
alt = models.TextField(blank=True, null=True)
|
||||
originalAlt = models.TextField(blank=True, null=True)
|
||||
genAlt = models.TextField(blank=True, null=True)
|
||||
genImageCaption = models.TextField(blank=True, null=True)
|
||||
ocr = models.TextField(blank=True, null=True)
|
||||
beforeContext = models.TextField(blank=True, null=True)
|
||||
afterContext = models.TextField(blank=True, null=True)
|
||||
additionalContext = models.TextField(blank=True, null=True)
|
||||
|
||||
class Meta:
|
||||
db_table = 'images'
|
||||
unique_together = ('book', 'src')
|
||||
|
||||
def __str__(self):
|
||||
return f"Image {self.src} of Book {self.book.id}"
|
||||
|
|
@ -1,16 +1,31 @@
|
|||
import dotenv
|
||||
from books import addBook, getBooks, getBook, updateBook
|
||||
from books import addBook, getBooks, getBook, updateBook, deleteBook
|
||||
from images import (
|
||||
addImage,
|
||||
getImagesByBook,
|
||||
getImageByBook,
|
||||
getImagesByHash,
|
||||
updateImage,
|
||||
deleteImage,
|
||||
)
|
||||
from config import Database
|
||||
import os
|
||||
import django
|
||||
import sys
|
||||
|
||||
dotenv.load_dotenv()
|
||||
|
||||
|
||||
#project_root = "/SeniorD/alt-text-backend"
|
||||
#sys.path.insert(0, project_root)
|
||||
|
||||
# Set the Django settings module
|
||||
#os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'alttextbackend.settings')
|
||||
|
||||
# Prepare the Django project for use
|
||||
#django.setup()
|
||||
|
||||
|
||||
"""
|
||||
createBookTable = "CREATE TABLE books (id varchar(255) NOT NULL PRIMARY KEY, title varchar(255), size varchar(255), status varchar(255), numImages int, coverExt varchar(255));"
|
||||
createImageTable = "CREATE TABLE images (bookid varchar(255) NOT NULL, src varchar(255) NOT NULL, hash varchar(255), status varchar(255), alt varchar(255), originalAlt varchar(255), genAlt varchar(255), genImageCaption varchar(255), ocr varchar(255), beforeContext varchar(255), afterContext varchar(255), additionalContext varchar(255), CONSTRAINT PK_Image PRIMARY KEY (bookid, src), FOREIGN KEY (bookid) REFERENCES books(id) ON DELETE CASCADE);"
|
||||
|
|
@ -26,30 +41,40 @@ addBook(title="Harraoeu", size="300kb", numImages=25)
|
|||
addBook(title="Hartter", size="300kb", numImages=25)
|
||||
"""
|
||||
|
||||
# getBooks(titleQ="Harry Potter", limit=1, skip=2)
|
||||
#print(getBooks())
|
||||
|
||||
#deleteBook('43198a6e-73ad-4e57-a2df-a7c9c7f8ce9a')
|
||||
|
||||
"""
|
||||
addImage(
|
||||
bookid="f1ac43cc-9f6d-4dc8-ac4f-aea0c4af5198",
|
||||
src="sampleSrcMEOW",
|
||||
bookid="845e7e66-860c-4df1-b64e-82c805c5cc3c",
|
||||
src="sampleSrcMEOW2222",
|
||||
hash="brown",
|
||||
status="available",
|
||||
genAlt="yeahhhh"
|
||||
)
|
||||
"""
|
||||
|
||||
# getImagesByBook("fa47d830-586a-485f-a579-67b33fd3eae3")
|
||||
print(getImageByBook(bookid="845e7e66-860c-4df1-b64e-82c805c5cc3c", src="sampleSrcMEOW"))
|
||||
|
||||
#print(getBook("845e7e66-860c-4df1-b64e-82c805c5cc3c"))
|
||||
|
||||
#print(getImagesByBook("845e7e66-860c-4df1-b64e-82c805c5cc3c"))
|
||||
|
||||
#print(getImagesByHash("brown"))
|
||||
|
||||
"""
|
||||
updateImage(
|
||||
bookid="f1ac43cc-9f6d-4dc8-ac4f-aea0c4af5198",
|
||||
bookid="845e7e66-860c-4df1-b64e-82c805c5cc3c",
|
||||
src="sampleSrcMEOW",
|
||||
status="bruh2",
|
||||
status="bruh2234234",
|
||||
beforeContext="before context be like",
|
||||
)
|
||||
"""
|
||||
|
||||
#deleteImage(bookid="845e7e66-860c-4df1-b64e-82c805c5cc3c", src="sampleSrcMEOW2222")
|
||||
|
||||
# updateBook(id="72950", title="Test Title Two", status="available")
|
||||
#updateBook(id="845e7e66-860c-4df1-b64e-82c805c5cc3c", coverExt="your mother")
|
||||
#print(getBooks())
|
||||
|
||||
db = Database()
|
||||
# db.sendQuery("SELECT * FROM images;")
|
||||
|
|
|
|||
|
|
@ -11,6 +11,8 @@ https://docs.djangoproject.com/en/4.2/ref/settings/
|
|||
"""
|
||||
|
||||
from pathlib import Path
|
||||
from dotenv import load_dotenv
|
||||
load_dotenv()
|
||||
|
||||
import os
|
||||
|
||||
|
|
@ -39,6 +41,7 @@ INSTALLED_APPS = [
|
|||
"django.contrib.sessions",
|
||||
"django.contrib.messages",
|
||||
"django.contrib.staticfiles",
|
||||
"alttextbackend.data.postgres",
|
||||
"rest_framework",
|
||||
]
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue