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Author SHA1 Message Date
Tim Van Baak c379ee7d8f tmp 2021-06-02 18:48:56 -07:00
1 changed files with 35 additions and 1 deletions

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@ -1,7 +1,9 @@
"""
Membership query interface
Index query interface
"""
import re
from amanuensis.db import DbContext, ArticleIndex, IndexType
from amanuensis.errors import ArgumentError
@ -15,7 +17,39 @@ def create(
display_order: int,
capacity: int) -> ArticleIndex:
"""
Create a new index in a lexicon.
"""
# Verify argument types are correct
if not isinstance(lexicon_id, int):
raise ArgumentError('lexicon_id')
if not isinstance(index_type, IndexType):
raise ArgumentError('index_type')
if not isinstance(pattern, str):
raise ArgumentError('pattern')
if not isinstance(logical_order, int):
raise ArgumentError('logical_order')
if not isinstance(display_order, int):
raise ArgumentError('display_order')
if not isinstance(capacity, int):
raise ArgumentError('capacity')
# Verify the pattern is valid for the index type:
if index_type == IndexType.CHAR:
if len(pattern) < 1:
raise ArgumentError(f'Pattern "{pattern}" too short for index type {index_type}')
elif index_type == IndexType.RANGE:
range_def = re.match(r'^(.)-(.)$', pattern)
if not range_def:
raise ArgumentError(f'Pattern "{pattern}" is not a valid range format')
start_char, end_char = range_def.group(1), range_def.group(2)
if start_char >= end_char:
raise ArgumentError(f'Range start "{start_char}" is not before range end "{end_char}"')
elif index_type == IndexType.PREFIX:
if len(pattern) < 1:
raise ArgumentError(f'Pattern "{pattern}" too short for index type {index_type}')
elif index_type == IndexType.ETC:
if len(pattern) < 1:
raise ArgumentError(f'Pattern "{pattern}" too short for index type {index_type}')
new_index = ArticleIndex(
lexicon_id=lexicon_id,