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file_manager.py
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file_manager.py
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from config import mysql
from flask import render_template, request
from urllib.parse import parse_qs
from triggers import create_insert_trigger, create_delete_trigger, create_update_trigger, create_alter_trigger
mysql = mysql
cursor = mysql.cursor(dictionary=True)
# def file_manager():
# cursor.execute("SHOW TABLES")
# table_info = []
#
# for info in cursor.fetchall():
# table_name = info['Tables_in_adbms']
# cursor.execute(
# f"SELECT table_name, ROUND(data_length / (1024 * 1024), 4) AS data_length_mb, "
# f"DATE_FORMAT(CREATE_TIME, '%d,%b %Y %h:%i %p') AS create_time_formatted "
# f"FROM information_schema.tables "
# f"WHERE table_schema = 'adbms' AND table_name = '{table_name}'"
# )
# result = cursor.fetchone()
# if result:
# table_info.append(result)
# cursor.execute(f"SELECT COUNT(*) AS table_items FROM {table_name}")
# result = cursor.fetchone()
# if result:
# table_info[-1]['table_items'] = result['table_items']
#
# cursor.execute(f"SELECT * FROM recents")
# recents_data = cursor.fetchall()
#
# cursor.execute("CALL CountTables('adbms')")
# # Fetch the result
# count_tables = cursor.fetchone()
# table_count = count_tables['COUNT(*)']
#
# return render_template(
# 'file-manager.html',
# table_info=table_info,
# recents_data=recents_data,
# resultcount=table_count - 1
# )
def get_table_info(cur):
cur.execute("SHOW TABLES")
table_info = []
for info in cur.fetchall():
table_name = info['Tables_in_adbms']
cur.execute(
"""
SELECT table_name, ROUND(data_length / (1024 * 1024), 4) AS data_length_mb,
DATE_FORMAT(CREATE_TIME, %s) AS create_time_formatted
FROM information_schema.tables
WHERE table_schema = %s AND table_name = %s
""",
('%d,%b %Y %h:%i %p', 'adbms', table_name)
)
result = cur.fetchone()
if result:
table_info.append(result)
cur.execute(f"SELECT COUNT(*) AS table_items FROM {table_name}")
result = cur.fetchone()
if result:
table_info[-1]['table_items'] = result['table_items']
return table_info
def get_recents_data(cur):
cur.execute(f"SELECT * FROM recents")
return cur.fetchall()
def get_table_count():
cur = mysql.cursor(dictionary=True)
cur.execute("CALL CountTables('adbms')")
count_tables = cur.fetchone()
cur.close()
return count_tables['COUNT(*)']
def file_manager():
try:
table_info = get_table_info(cursor)
recents_data = get_recents_data(cursor)
# table_count = get_table_count()
except Exception as e:
return render_template('error.html', error=str(e))
return render_template(
'file-manager.html',
table_info=table_info,
recents_data=recents_data,
resultcount=''
)
def add_new_table():
table_name = request.form['table_name']
column_name = request.form['initial_column']
relationship = request.form['relationship']
relationship_id = relationship + 'Id'
try:
if relationship == "":
cursor.execute(f'''
CREATE TABLE {table_name} (
{table_name}Id INT NOT NULL PRIMARY KEY AUTO_INCREMENT,
{column_name} varchar(255)
)
''')
else:
cursor.execute(f'''
CREATE TABLE {table_name} (
{table_name}Id INT NOT NULL PRIMARY KEY AUTO_INCREMENT,
{column_name} varchar(255),
{relationship_id} int,
FOREIGN KEY ({relationship_id}) REFERENCES {relationship}({relationship_id})
)
''')
mysql.commit()
# create triggers
create_insert_trigger('Created New Record', table_name)
create_delete_trigger('Deleted Record', table_name)
create_update_trigger('Updated Record', table_name)
create_alter_trigger('Added New Column', table_name)
return render_template('file-manager.html')
except Exception as e:
return f'Something went wrong: {e}'
def drop_table():
table_name = request.form['table_name']
try:
cursor.execute(f'DROP TABLE {table_name}')
mysql.commit()
return "success"
except Exception as e:
return f'Something went wrong: {e}'
class FileManager:
tableName = None
def file_manager_table(self, table_name):
self.tableName = table_name
try:
cursor.execute(f"SELECT * FROM {table_name}")
data = cursor.fetchall()
column_names = [column[0] for column in cursor.description]
return render_template(
'file-manager-table.html',
data=data, column_names=column_names,
table_name=table_name
)
except Exception as e:
return f'Something went wrong: {e}'
def edit_cell(self, cell_id):
table_name = self.tableName
try:
name = request.form['field']
value = request.form['value']
cursor.execute(f"UPDATE {table_name} SET {name}=%s WHERE {table_name}Id=%s", (value, cell_id))
mysql.commit()
return "success"
except Exception as e:
return f'Something went wrong: {e}'
def insert_row(self):
table_name = self.tableName
try:
form_data_str = request.form['form_data']
form_data_dict = parse_qs(form_data_str)
print('--------------')
print(table_name)
columns = ', '.join(form_data_dict.keys())
values_count = ', '.join(['%s'] * len(form_data_dict))
values = [item[0] for item in form_data_dict.values()]
cursor.execute(f'INSERT INTO {table_name} ({columns}) VALUES ({values_count})', tuple(values))
mysql.commit()
return "success"
except Exception as e:
return f'Something went wrong: {e}'
def new_col(self):
table_name = self.tableName
try:
new_column_name = request.form['new_column_name']
new_column_type = request.form['new_column_type']
cursor.execute(f"ALTER TABLE {table_name} ADD {new_column_name} {new_column_type}")
mysql.commit()
return "success"
except Exception as e:
return f'Something went wrong: {e}'
def drop_col(self):
table_name = self.tableName
try:
col_name = request.form['column_name']
cursor.execute(f"ALTER TABLE {table_name} DROP COLUMN {col_name}")
mysql.commit()
return "success"
except Exception as e:
return f'Something went wrong: {e}'
def drop_row(self):
table_name = self.tableName
try:
rowid = request.form['rowid']
cursor.execute(f"DELETE FROM {table_name} WHERE {table_name}Id={rowid}")
mysql.commit()
return "success"
except Exception as e:
return f'Something went wrong: {e}'
# not done
def edit_row(self, row_id):
table_name = self.tableName
try:
name = request.form['field']
value = request.form['value']
cursor.execute(f"UPDATE {table_name} SET {name}=%s WHERE {table_name}Id=%s", (value, row_id))
mysql.commit()
return "success"
except Exception as e:
return f'Something went wrong: {e}'
# not work
def compare(self, value):
table_name = self.tableName
try:
cursor.execute(f"SELECT * FROM {table_name} LIMIT 3")
cursor.fetchall()
print('-----------')
print(value)
return "success"
except Exception as e:
return f'Something went wrong: {e}'
def edit_col_name(self):
table_name = self.tableName
col_name = request.form['value']
print(col_name)
print(table_name)
try:
cursor.execute(f'ALTER TABLE {table_name} RENAME COLUMN {col_name} TO new_cname')
mysql.commit()
return "success"
except Exception as e:
return f'Something went wrong: {e}'