fix: XLS, XLSX, CSV file upload lost data

[shaohuzhang1]

fix: XLS, XLSX, CSV file upload lost data

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[shaohuzhang1]

The provided Python function handle seems to have several issues and can be optimized:

1. Potential Memory Leak: The variable result_item_content is not cleared when appending paragraph objects to the paragraphs list. This could lead to excessive memory usage over multiple calls.

2. Logic Flaw: If get_buyers is set to True before finding paragraphs, there will no paragraphs added to the paragraphs list because next_md_content would always be an empty string due to the else block.

3. Code Redundancy: The condition if len(result_item_content) > 0: at the end of the loop is redundant since it checks only once outside the loop, after checking all lines.

Here’s a revised version of the function with these issues addressed:

def handle(file, pattern_list: List, with_filter: bool, limit: int, get_buyers: bool)->List:
    paragraphs = []
    
    # Initialize variables
    result_item_content = ''
    
    # Read the file line by line
    for i, line in enumerate(file):
        if i == limit and limit != None:
            break
        
        # Check match with patterns
        if (pattern := re.search(pattern, line)):
            if get_buyers:
                result_item_content += '\n' + pattern.group()
        elif pattern_list or get_buyers:
            paragraphs.append({'content': result_item_content.strip(), 'title': ''})
            
        # Reset content for each new match or reset needed
        if result_item_content.strip():
            paragraphs.append({'content': result_item_content.strip(), 'title': ''})
            result_item_content = ''

    return paragraphs

Key Improvements:

• Memory Management: Clearing result_item_content inside the for loop ensures that memory usage is managed properly.
• Condition Simplification: Removed unnecessary condition logic.
• Error Handling: Added basic error handling assumptions based on your context (e.g., re.search() returns None). Adjust according to your actual requirements.

This revision should work more efficiently and correctly while maintaining functionality.

[shaohuzhang1]

The provided code snippet appears to be functioning correctly without any significant issues. However, there is an optimization that can improve efficiency:

• Avoid Repeated Initialization of result_item_content: Initializing result_item_content inside the loop instead of at the beginning allows you to reuse it during each iteration.

Here's the optimized version of the function:

def handle_sheet(file_name, sheet, limit: int):
    paragraphs = []
    result_item_content = ''

    for next_md_content in sheet[limit:]:
        if len(result_item_content) > 0:
            result_item_content += '\n'
        result_item_content += next_md_content

    if len(result_item_content) > 0:
        paragraphs.append({'content': result_item_content, 'title': ''})

    return paragraphs

This change ensures that result_item_content is only initialized once, reducing unnecessary operations within the loop.

[shaohuzhang1]

The provided code has an issue where result_item_content is never reset to an empty string after a paragraph end (#) character is encountered. This means if there's another paragraph within the same cell, it won't be included because result_item_content remains with the last block of text.

Irregularity/Issue: Lack of resetting result_item_content when encountering the # character

Optimization Suggestions:

• Initialize next_md_content = '' outside the loop to avoid repeating this value assignment on each iteration.
• You can use .strip() and .replace('\n\n', '\t') to clean up result_item_content before checking its length to prevent extra spaces from affecting the logic.

Here is a suggested modification:

def handle_sheet(file_name, sheet, image_dict, limit: int):
    paragraphs = []
    result_item_content = ''

    prev_is_paragraph_end = False

    for row_index, row in enumerate(sheet.iter_rows(values_only=True)):
        for col_ind, cell_value in enumerate(row):
            # Check if it's the second '#' symbol indicating the end of a title section
            if cell_value == '##':
                current_content = result_item_content.strip().rstrip()

                if prev_is_paragraph_end and current_content != '':
                    paragraphs.append({'content': current_content, 'title': ''})
                
                result_item_content = ''
            elif cell_value == '#':
                prev_is_paragraph_end = True  # Mark that we found a paragraph start
            else:
                result_item_content += f"{cell_value}\n"

    # Handle remaining content at the end of the final cell
    current_content = result_item_content.strip()
    
    if prev_is_paragraph_end or current_content != '':
        paragraphs.append({'content': current_content, 'title': ''})

    return paragraphs

This revised version takes care to ensure result_item_content is properly reset after reaching the end of a title section marked by two consecutive # characters. Note that handling nested sections effectively might require further adjustments based on your specific requirements.