Spaces:
Sleeping
Sleeping
File size: 15,751 Bytes
67f25fb |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 |
"""
Database manager for storing translations and corrections
Uses SQLite for simplicity
"""
import sqlite3
import logging
from datetime import datetime
from typing import List, Dict, Optional, Any
import os
logger = logging.getLogger(__name__)
class DatabaseManager:
"""Manages SQLite database for translation storage"""
def __init__(self, db_path: str = "../data/translations.db"):
self.db_path = db_path
self.ensure_db_directory()
def ensure_db_directory(self):
"""Ensure the database directory exists"""
os.makedirs(os.path.dirname(os.path.abspath(self.db_path)), exist_ok=True)
def get_connection(self) -> sqlite3.Connection:
"""Get database connection"""
conn = sqlite3.connect(self.db_path)
conn.row_factory = sqlite3.Row # Enable column access by name
return conn
def initialize_database(self):
"""Initialize database tables"""
try:
with self.get_connection() as conn:
# Create translations table
conn.execute("""
CREATE TABLE IF NOT EXISTS translations (
id INTEGER PRIMARY KEY AUTOINCREMENT,
original_text TEXT NOT NULL,
translated_text TEXT NOT NULL,
source_language TEXT NOT NULL,
target_language TEXT NOT NULL,
model_confidence REAL DEFAULT 0.0,
created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
)
""")
# Create corrections table
conn.execute("""
CREATE TABLE IF NOT EXISTS corrections (
id INTEGER PRIMARY KEY AUTOINCREMENT,
translation_id INTEGER NOT NULL,
corrected_text TEXT NOT NULL,
feedback TEXT,
created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
FOREIGN KEY (translation_id) REFERENCES translations (id)
)
""")
# Create indexes for better performance
conn.execute("""
CREATE INDEX IF NOT EXISTS idx_translations_languages
ON translations (source_language, target_language)
""")
conn.execute("""
CREATE INDEX IF NOT EXISTS idx_translations_created
ON translations (created_at)
""")
conn.execute("""
CREATE INDEX IF NOT EXISTS idx_corrections_translation
ON corrections (translation_id)
""")
conn.commit()
logger.info("Database initialized successfully")
except Exception as e:
logger.error(f"Database initialization error: {str(e)}")
raise
def store_translation(
self,
original_text: str,
translated_text: str,
source_language: str,
target_language: str,
model_confidence: float = 0.0
) -> int:
"""
Store a translation in the database
Args:
original_text: Original text
translated_text: Translated text
source_language: Source language code
target_language: Target language code
model_confidence: Model confidence score
Returns:
Translation ID
"""
try:
with self.get_connection() as conn:
cursor = conn.execute("""
INSERT INTO translations
(original_text, translated_text, source_language, target_language, model_confidence)
VALUES (?, ?, ?, ?, ?)
""", (original_text, translated_text, source_language, target_language, model_confidence))
translation_id = cursor.lastrowid
conn.commit()
logger.info(f"Translation stored with ID: {translation_id}")
return translation_id
except Exception as e:
logger.error(f"Error storing translation: {str(e)}")
raise
def store_correction(
self,
translation_id: int,
corrected_text: str,
feedback: Optional[str] = None
) -> int:
"""
Store a correction for a translation
Args:
translation_id: ID of the original translation
corrected_text: Corrected text
feedback: Optional feedback about the correction
Returns:
Correction ID
"""
try:
with self.get_connection() as conn:
cursor = conn.execute("""
INSERT INTO corrections (translation_id, corrected_text, feedback)
VALUES (?, ?, ?)
""", (translation_id, corrected_text, feedback))
correction_id = cursor.lastrowid
conn.commit()
logger.info(f"Correction stored with ID: {correction_id}")
return correction_id
except Exception as e:
logger.error(f"Error storing correction: {str(e)}")
raise
def get_translation_history(
self,
limit: int = 50,
offset: int = 0,
source_language: Optional[str] = None,
target_language: Optional[str] = None
) -> List[Dict[str, Any]]:
"""
Get translation history
Args:
limit: Maximum number of records to return
offset: Number of records to skip
source_language: Filter by source language
target_language: Filter by target language
Returns:
List of translation history records
"""
try:
with self.get_connection() as conn:
# Build query with optional filters
where_conditions = []
params = []
if source_language:
where_conditions.append("t.source_language = ?")
params.append(source_language)
if target_language:
where_conditions.append("t.target_language = ?")
params.append(target_language)
where_clause = ""
if where_conditions:
where_clause = "WHERE " + " AND ".join(where_conditions)
query = f"""
SELECT
t.id,
t.original_text,
t.translated_text,
t.source_language,
t.target_language,
t.model_confidence,
t.created_at,
c.corrected_text,
c.feedback as correction_feedback
FROM translations t
LEFT JOIN corrections c ON t.id = c.translation_id
{where_clause}
ORDER BY t.created_at DESC
LIMIT ? OFFSET ?
"""
params.extend([limit, offset])
cursor = conn.execute(query, params)
rows = cursor.fetchall()
# Convert to dictionaries
results = []
for row in rows:
results.append({
"id": row["id"],
"original_text": row["original_text"],
"translated_text": row["translated_text"],
"source_language": row["source_language"],
"target_language": row["target_language"],
"model_confidence": row["model_confidence"],
"created_at": row["created_at"],
"corrected_text": row["corrected_text"],
"correction_feedback": row["correction_feedback"]
})
return results
except Exception as e:
logger.error(f"Error retrieving translation history: {str(e)}")
raise
def get_translation_by_id(self, translation_id: int) -> Optional[Dict[str, Any]]:
"""
Get a specific translation by ID
Args:
translation_id: Translation ID
Returns:
Translation record or None if not found
"""
try:
with self.get_connection() as conn:
cursor = conn.execute("""
SELECT
t.id,
t.original_text,
t.translated_text,
t.source_language,
t.target_language,
t.model_confidence,
t.created_at,
c.corrected_text,
c.feedback as correction_feedback
FROM translations t
LEFT JOIN corrections c ON t.id = c.translation_id
WHERE t.id = ?
""", (translation_id,))
row = cursor.fetchone()
if row:
return {
"id": row["id"],
"original_text": row["original_text"],
"translated_text": row["translated_text"],
"source_language": row["source_language"],
"target_language": row["target_language"],
"model_confidence": row["model_confidence"],
"created_at": row["created_at"],
"corrected_text": row["corrected_text"],
"correction_feedback": row["correction_feedback"]
}
return None
except Exception as e:
logger.error(f"Error retrieving translation {translation_id}: {str(e)}")
raise
def get_corrections_for_training(self, limit: int = 1000) -> List[Dict[str, Any]]:
"""
Get corrections that can be used for model fine-tuning
Args:
limit: Maximum number of corrections to return
Returns:
List of correction records suitable for training
"""
try:
with self.get_connection() as conn:
cursor = conn.execute("""
SELECT
t.original_text,
t.source_language,
t.target_language,
c.corrected_text,
c.feedback,
c.created_at
FROM corrections c
JOIN translations t ON c.translation_id = t.id
ORDER BY c.created_at DESC
LIMIT ?
""", (limit,))
rows = cursor.fetchall()
results = []
for row in rows:
results.append({
"original_text": row["original_text"],
"source_language": row["source_language"],
"target_language": row["target_language"],
"corrected_text": row["corrected_text"],
"feedback": row["feedback"],
"created_at": row["created_at"]
})
return results
except Exception as e:
logger.error(f"Error retrieving corrections for training: {str(e)}")
raise
def get_statistics(self) -> Dict[str, Any]:
"""
Get database statistics
Returns:
Dictionary with various statistics
"""
try:
with self.get_connection() as conn:
# Total translations
cursor = conn.execute("SELECT COUNT(*) FROM translations")
total_translations = cursor.fetchone()[0]
# Total corrections
cursor = conn.execute("SELECT COUNT(*) FROM corrections")
total_corrections = cursor.fetchone()[0]
# Translations by language pair
cursor = conn.execute("""
SELECT source_language, target_language, COUNT(*) as count
FROM translations
GROUP BY source_language, target_language
ORDER BY count DESC
""")
language_pairs = cursor.fetchall()
# Recent activity (last 7 days)
cursor = conn.execute("""
SELECT COUNT(*) FROM translations
WHERE created_at >= datetime('now', '-7 days')
""")
recent_translations = cursor.fetchone()[0]
return {
"total_translations": total_translations,
"total_corrections": total_corrections,
"recent_translations": recent_translations,
"language_pairs": [
{
"source": row["source_language"],
"target": row["target_language"],
"count": row["count"]
}
for row in language_pairs
]
}
except Exception as e:
logger.error(f"Error retrieving statistics: {str(e)}")
raise
def cleanup_old_records(self, days: int = 30):
"""
Clean up old translation records
Args:
days: Number of days to keep records
"""
try:
with self.get_connection() as conn:
# Delete old corrections first (due to foreign key constraint)
cursor = conn.execute("""
DELETE FROM corrections
WHERE translation_id IN (
SELECT id FROM translations
WHERE created_at < datetime('now', '-' || ? || ' days')
)
""", (days,))
deleted_corrections = cursor.rowcount
# Delete old translations
cursor = conn.execute("""
DELETE FROM translations
WHERE created_at < datetime('now', '-' || ? || ' days')
""", (days,))
deleted_translations = cursor.rowcount
conn.commit()
logger.info(f"Cleaned up {deleted_translations} translations and {deleted_corrections} corrections older than {days} days")
except Exception as e:
logger.error(f"Error during cleanup: {str(e)}")
raise
|