mirror of
https://github.com/coleifer/peewee.git
synced 2026-05-06 07:56:41 -04:00
Charles Leifer
adad27b0ba
Warning: this set of functions requires a good deal of care to use correctly.
35 lines
895 B
Python
35 lines
895 B
Python
from peewee import sqlite3
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def json_installed():
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if sqlite3.sqlite_version_info < (3, 9, 0):
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return False
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tmp_db = sqlite3.connect(':memory:')
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try:
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tmp_db.execute('select json(?)', (1337,))
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except:
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return False
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finally:
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tmp_db.close()
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return True
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def json_patch_installed():
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return sqlite3.sqlite_version_info >= (3, 18, 0)
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def json_text_installed():
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return sqlite3.sqlite_version_info >= (3, 38, 0)
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def jsonb_installed():
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return sqlite3.sqlite_version_info >= (3, 45, 0)
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def compile_option(p):
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if not hasattr(compile_option, '_pragma_cache'):
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conn = sqlite3.connect(':memory:')
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curs = conn.execute('pragma compile_options')
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opts = [opt.lower().split('=')[0].strip() for opt, in curs.fetchall()]
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compile_option._pragma_cache = set(opts)
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return p in compile_option._pragma_cache
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