| Server IP : 192.158.238.246 / Your IP : 18.117.232.234 Web Server : LiteSpeed System : Linux uniform.iwebfusion.net 4.18.0-553.27.1.lve.1.el8.x86_64 #1 SMP Wed Nov 20 15:58:00 UTC 2024 x86_64 User : jenniferflocom ( 1321) PHP Version : 8.1.32 Disable Function : NONE MySQL : OFF | cURL : ON | WGET : ON | Perl : ON | Python : ON | Sudo : OFF | Pkexec : OFF Directory : /opt/alt/python38/lib64/python3.8/site-packages/playhouse/__pycache__/ |
Upload File : |
U
S��W � @ sd d Z ddlZddlZddlZddlZddlZddlZddlZz ddlZ W n e
k
rd ddl Z Y nX zddl m Z W n e
k
r� Y nX ddl
T ddl
mZ ddl
mZ ddl
mZ ddl
mZ dd l
mZ dd
l
mZ dd l
mZ dd l
mZ dd
l
mZ ddl
mZ ddl
mZ ddl
mZ zddlmZ W n e
k
�rN dZ Y nX ej d dk�rde Z dZ dZ!ej"dd� dk�r�d�p�dZ#dZ$G dd� de�Z%G dd � d e�Z&G d d � d e'�Z(G d d � d e)�Z*G d!d"� d"e+�Z,G d#d$� d$e-�Z.G d%d&� d&e.e+�Z/G d'd(� d(e.e0�Z1G d)d*� d*e.e2�Z3G d+d,� d,e.e4�Z5G d-d.� d.e6�Z7G d/d0� d0e7�Z8G d1d2� d2e8�Z9d3Z:e;d4d5d6d7e<d8�d9d:d;d<d=d>d?d@g
�e;dA�B e;e:�B e;e:�=� �B Z>e;dBdC� e?dD�D ��Z@e�AdE�ZBG dFdG� dGe8�ZCd]dHdI�ZDG dJdK� dKe�ZEejFdLdM�dNdO� �ZGG dPdQ� dQeH�ZIG dRdS� dSe�ZJdTe_KeI�LejKdUi� dVdT� ZMdWdX� ZNdYdZ� ZOd[d\� ZPdS )^a�
Sqlite3 extensions
==================
* Define custom aggregates, collations and functions
* Basic support for virtual tables
* Basic support for FTS3/4
* Specify isolation level in transactions
Example usage of the Full-text search:
class Document(FTSModel):
title = TextField() # type affinities are ignored in FTS
content = TextField()
Document.create_table(tokenize='porter') # use the porter stemmer
# populate the documents using normal operations.
for doc in documents:
Document.create(title=doc['title'], content=doc['content'])
# use the "match" operation for FTS queries.
matching_docs = Document.select().where(match(Document.title, 'some query'))
# to sort by best match, use the custom "rank" function.
best_docs = (Document
.select(Document, Document.rank('score'))
.where(match(Document.title, 'some query'))
.order_by(SQL('score')))
# or use the shortcut method.
best_docs = Document.match('some phrase')
� N)�
TableFunction)�*)�EnclosedClause)�Entity)�
Expression)�Node)�OP)�SqliteQueryCompiler)�_AutoPrimaryKeyField)�sqlite3)� transaction)�_sqlite_date_part)�_sqlite_date_trunc)�_sqlite_regexp)� _sqlite_ext� ZpcnalxZpcx)r � � ZFTS4ZFTS3)r � r c @ s e Zd ZdZdZdS )�
RowIDFieldz�
Field used to access hidden primary key on FTS5 or any other SQLite
table that does not have a separately-defined primary key.
�rowidN��__name__�
__module__� __qualname__�__doc__� _column_name� r r �G/opt/alt/python38/lib64/python3.8/site-packages/playhouse/sqlite_ext.pyr O s r c @ s e Zd ZdZdZdS )�
DocIDFieldz9Field used to access hidden primary key on FTS3/4 tables.�docidNr r r r r r W s r c s e Zd ZdZ� fdd�Z� ZS )� PrimaryKeyAutoIncrementFielda
SQLite by default uses MAX(primary key) + 1 to set the ID on a new row.
Using the `AUTOINCREMENT` field, the IDs will increase monotonically
even if rows are deleted. Use this if you need to guarantee IDs are not
re-used in the event of deletion.
c s t t| ��|�}|td�g S )NZ
AUTOINCREMENT)�superr! �__ddl__�SQL)�self� column_type�ddl�� __class__r r r# c s z$PrimaryKeyAutoIncrementField.__ddl__)r r r r r# �
__classcell__r r r( r r! \ s r! c @ s� e Zd Zdd� Zdd� Zdd� Zd dd �Zd
d � Zd d
� Zdd� Z dd� Z
dd� Z dd� Z dd� Z
d dd�Zd dd�Zd!d d �ZdS )"� JSONFieldc C s6 |d k r2z t �|�W S ttfk
r0 | Y S X d S �N)�json�loads� TypeError�
ValueError�r% �valuer r r � python_valuei s
zJSONField.python_valuec C s |d k rt �|�S d S r, )r- �dumpsr1 r r r �db_valuep s zJSONField.db_valuec C s |� d�s|sd| S d| S )N�[z$%sz$.%s)�
startswith�r% �pathr r r �
clean_patht s zJSONField.clean_pathNc C s |rt �| | �|��S t �| �S r, )�fnZjson_array_lengthr: r8 r r r �lengthy s zJSONField.lengthc C s t �| | �|��S r, )r; Z json_extractr: r8 r r r �extract~ s zJSONField.extractc C s$ t |tttf�r t�t�|��S |S r, )�
isinstance�list�tuple�dictr; r- r4 r1 r r r �_value_for_insertion� s z JSONField._value_for_insertionc C sl t |�}|d dkr td��g }td|d�D ]0}|�| �|| �� |�| �||d �� q,|| f|�� S )N� r z%Mismatched path and value parameters.� )�lenr0 �range�appendr: rB )r% r; �pairsZnpairs�accum�ir r r � _insert_like� s zJSONField._insert_likec G s | � tj|�S r, )rK r; Z json_insert�r% rH r r r �insert� s zJSONField.insertc G s | � tj|�S r, )rK r; Z json_replacerL r r r �replace� s zJSONField.replacec G s | � tj|�S r, )rK r; Zjson_setrL r r r �set� s z
JSONField.setc s t j� f� fdd�|D ��� S )Nc s g | ]}� � |��qS r )r: )�.0r9 �r% r r �
<listcomp>� s z$JSONField.remove.<locals>.<listcomp>)r; Z json_remove)r% �pathsr rQ r �remove� s zJSONField.removec C s |rt �| | �|��S t �| �S r, )r; � json_typer: r8 r r r rU � s zJSONField.json_typec C s |rt �| | �|��S t �| �S )a?
Schema of `json_each` and `json_tree`:
key,
value,
type TEXT (object, array, string, etc),
atom (value for primitive/scalar types, NULL for array and object)
id INTEGER (unique identifier for element)
parent INTEGER (unique identifier of parent element or NULL)
fullkey TEXT (full path describing element)
path TEXT (path to the container of the current element)
json JSON hidden (1st input parameter to function)
root TEXT hidden (2nd input parameter, path at which to start)
)r; Z json_eachr: r8 r r r �children� s zJSONField.childrenc C s |rt �| | �|��S t �| �S r, )r; Z json_treer: r8 r r r �tree� s zJSONField.tree)N)N)N)N)r r r r3 r5 r: r< r= rB rK rM rN rO rT rU rV rW r r r r r+ h s
r+ c s. e Zd ZdZd� fdd� Z� fdd�Z� ZS ) � SearchFielda-
Field class to be used with full-text search extension. Since the FTS
extensions do not support any field types besides `TEXT`, and furthermore
do not support secondary indexes, using this field will prevent you
from mistakenly creating the wrong kind of field on your FTS table.
FNc s: d||d�}|| _ |r$td�g|d< tt| �jf |� d S )NT)�null� db_column�coerceZ UNINDEXED� constraints)�
_unindexedr$ r" rX �__init__)r% Z unindexedrZ r[ �_�kwargsr( r r r^ � s
zSearchField.__init__c s t t| �jf |�}| j|_|S r, )r" rX �
clone_baser] )r% r` �cloner( r r ra � s zSearchField.clone_base)FNN)r r r r r^ ra r* r r r( r rX � s rX c s e Zd ZdZ� fdd�Z� ZS )�_VirtualFieldMixinzx
Field mixin to support virtual table attributes that may not correspond
to actual columns in the database.
c s" t t| ��||� |j�|� d S r, )r" rc � add_to_class�_meta� remove_field)r% � model_class�namer( r r rd � s z _VirtualFieldMixin.add_to_class)r r r r rd r* r r r( r rc � s rc c @ s e Zd ZdS )� VirtualFieldN�r r r r r r r ri � s ri c @ s e Zd ZdS )�VirtualIntegerFieldNrj r r r r rk � s rk c @ s e Zd ZdS )�VirtualCharFieldNrj r r r r rl � s rl c @ s e Zd ZdS )�VirtualFloatFieldNrj r r r r rm � s rm c @ s4 e Zd ZG dd� d�Zedd� �Zed dd��ZdS )
� VirtualModelc @ s e Zd ZdZdZi ZdS )zVirtualModel.MetaTN)r r r Z
virtual_table�extension_module�extension_optionsr r r r �Meta� s rq c K s |S r, r )�cls�optionsr r r �
clean_options� s zVirtualModel.clean_optionsFc K s. |r| � � rd S | jjj| |d� | �� d S )N)rs )� table_existsre �database� create_table�_create_indexes)rr �
fail_silentlyrs r r r rw � s zVirtualModel.create_tableN)F)r r r rq � classmethodrt rw r r r r rn � s
rn c @ s e Zd Zedd� �ZdS )� BaseFTSModelc K sB |� d�}|� d�}|r$d| |d< t|t�r>|dkr>d|d< |S )N�tokenize�contentz"%s"� z'')�getr> �
basestring)rr rs r| r} r r r rt � s
zBaseFTSModel.clean_optionsN)r r r rz rt r r r r r{ � s r{ c @ s� e Zd ZdZe� ZG dd� d�Zedd� �Zedd� �Z edd � �Z
ed
d � �Z ed d
� �Z ed(dd��Z
ed)dd��Zedd� �Zedd� �Zedd� �Zedd � �Zed d � �Zed*d"d#��Zed+d$d%��Zed,d&d'��Zd S )-�FTSModela_
VirtualModel class for creating tables that use either the FTS3 or FTS4
search extensions. Peewee automatically determines which version of the
FTS extension is supported and will use FTS4 if possible.
Note: because FTS5 is significantly different from FTS3 and FTS4, there is
a separate model class for FTS5 virtual tables.
c @ s e Zd ZeZdS )z
FTSModel.MetaN)r r r �FTS_VERro r r r r rq s rq c C s | j jjdkrtd��d S )Nr z:FTSModel classes must use the default `docid` primary key.)re � primary_keyrh �ImproperlyConfigured�rr r r r �validate_model s �zFTSModel.validate_modelc C s( | j j}| j j�d|||f �}|�� S )Nz INSERT INTO %s(%s) VALUES('%s');)re �db_tablerv � execute_sql�fetchone)rr �cmd�tbl�resr r r �_fts_cmd s
�zFTSModel._fts_cmdc C s
| � d�S )N�optimize�r� r� r r r r� $ s zFTSModel.optimizec C s
| � d�S )N�rebuildr� r� r r r r� ( s zFTSModel.rebuildc C s
| � d�S )Nzintegrity-checkr� r� r r r �integrity_check, s zFTSModel.integrity_check�� � c C s | � d||f �S )Nz merge=%s,%sr� )rr ZblocksZsegmentsr r r �merge0 s zFTSModel.mergeTc C s | � d|rdpd �S )Nz automerge=%s�1�0r� )rr �stater r r � automerge4 s zFTSModel.automergec C s t | �� |�S �zU
Generate a `MATCH` expression appropriate for searching this table.
��match� as_entity�rr �termr r r r� 8 s zFTSModel.matchc G s t jt �| �� t�f|�� S r, )r; �fts_rank� matchinfor� �FTS_MATCHINFO_FORMAT_SIMPLE�rr �weightsr r r �rank? s ��z
FTSModel.rankc G s t �| �� t�}t j|f|�� S r, )r; r� r� �FTS_MATCHINFO_FORMAT�fts_bm25�rr r� �
match_infor r r �bm25D s z
FTSModel.bm25c G s t �| �� t�}t j|f|�� S r, )r; r� r� r� �
fts_lucener� r r r �luceneI s zFTSModel.lucenec
C s� |s |� }nJt |t�rNg }| jjD ] } |�|�| |�| jd��� q"||� }n||� }d}
|} |rp| |�|�f}
|r�|s�t|�} | j |
� �
| � |��� | �S )N� �?r )
r> rA re �declared_fieldsrG r rh �aliasr$ �select�wherer� �order_by) rr r� r� �
with_score� score_aliasZscore_fn�explicit_orderingr� � weight_args�field� selectionr� r r r �_searchN s.
�
���zFTSModel._searchNF�scorec C s | � ||||| j|�S ��'Full-text search using selected `term`.)r� r� �rr r� r� r� r� r� r r r �searchh s �zFTSModel.searchc C s | � ||||| j|�S �z:Full-text search for selected `term` using BM25 algorithm.)r� r� r� r r r � search_bm25t s �zFTSModel.search_bm25c C s | � ||||| j|�S r� )r� r� r� r r r �
search_lucene� s �zFTSModel.search_lucene)r� r� )T)NFr� F)NFr� F)NFr� F)r r r r r r rq rz r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r r r r r� sR
� � �r� �abcdefghijklmnopqrstuvwxyz� � �,�"� �(�)�{�}r �:r_ �+�
0123456789c C s g | ]}t |�tkrt |��qS r )�chr� _alphanum)rP �pr r r rR � s rR � z(?:[^\s"]|"(?:\.|[^"])*")+c @ s� e Zd ZdZe� ZG dd� d�Zdddd�Zedd � �Z ed
d � �Z
e d d
� �Z e e
d�fdd��Zedd� �Zedd� �Zedd� �Zed-dd��Zed.d d ��Zed d � �Zed d!� �Zed"d#� �Zed$d%� �Zed&d'� �Zed(d)� �Zed/d+d,��ZdS )0� FTS5Modelan
Requires SQLite >= 3.9.0.
Table options:
content: table name of external content, or empty string for "contentless"
content_rowid: column name of external content primary key
prefix: integer(s). Ex: '2' or '2 3 4'
tokenize: porter, unicode61, ascii. Ex: 'porter unicode61'
The unicode tokenizer supports the following parameters:
* remove_diacritics (1 or 0, default is 1)
* tokenchars (string of characters, e.g. '-_'
* separators (string of characters)
Parameters are passed as alternating parameter name and value, so:
{'tokenize': "unicode61 remove_diacritics 0 tokenchars '-_'"}
Content-less tables:
If you don't need the full-text content in it's original form, you can
specify a content-less table. Searches and auxiliary functions will work
as usual, but the only values returned when SELECT-ing can be rowid. Also
content-less tables do not support UPDATE or DELETE.
External content tables:
You can set up triggers to sync these, e.g.
-- Create a table. And an external content fts5 table to index it.
CREATE TABLE tbl(a INTEGER PRIMARY KEY, b);
CREATE VIRTUAL TABLE ft USING fts5(b, content='tbl', content_rowid='a');
-- Triggers to keep the FTS index up to date.
CREATE TRIGGER tbl_ai AFTER INSERT ON tbl BEGIN
INSERT INTO ft(rowid, b) VALUES (new.a, new.b);
END;
CREATE TRIGGER tbl_ad AFTER DELETE ON tbl BEGIN
INSERT INTO ft(fts_idx, rowid, b) VALUES('delete', old.a, old.b);
END;
CREATE TRIGGER tbl_au AFTER UPDATE ON tbl BEGIN
INSERT INTO ft(fts_idx, rowid, b) VALUES('delete', old.a, old.b);
INSERT INTO ft(rowid, b) VALUES (new.a, new.b);
END;
Built-in auxiliary functions:
* bm25(tbl[, weight_0, ... weight_n])
* highlight(tbl, col_idx, prefix, suffix)
* snippet(tbl, col_idx, prefix, suffix, ?, max_tokens)
c @ s e Zd ZdZdS )zFTS5Model.Meta�fts5N�r r r ro r r r r rq � s rq zQBesides the implicit `rowid` column, all columns must be instances of SearchFieldz3Secondary indexes are not supported for FTS5 modelsz4FTS5 models must use the default `rowid` primary key)�
field_type�index�pkc C sd | j jjdkr t| jd ��| j j�� D ] }t|tt f�s(t| jd ��q(| j j
r`t| jd ��d S )Nr r� r� r� ) re r� rh r� �_error_messages�fields�valuesr> rX r �indexes)rr r� r r r r� � s zFTS5Model.validate_modelc C s� t jd d� tk rdS t �d�}z\z|�d� W nH zt �d� t �d� W n Y Y W � dS X | jj �d� Y nX W 5 |�� X dS )Nr Fz:memory:z0CREATE VIRTUAL TABLE fts5test USING fts5 (data);Tr� )
r �sqlite_version_info�FTS5_MIN_VERSION�connect�close�execute�enable_load_extension�load_extensionre rv )rr Ztmp_dbr r r �fts5_installed� s
zFTS5Model.fts5_installedc C s@ t �| �}|D ],}|�d�r(|�d�r(qt|�t@ r dS qdS )z�
Simple helper function to indicate whether a search query is a
valid FTS5 query. Note: this simply looks at the characters being
used, and is not guaranteed to catch all problematic queries.
r� FT)� _quote_re�findallr7 �endswithrO �_invalid_ascii)�query�tokens�tokenr r r �validate_query� s
zFTS5Model.validate_queryr� c C s� g }d}t �| �}|D ]\}|�d�r:|�d�r:|�|� qt|�}|t@ }|rhd}|D ]}|�||�}qV|�|� q|r�d�|�S | S )z2
Clean a query of invalid tokens.
Fr� Tr� ) r� r� r7 r� rG rO r� rN �join) r� rN rI Z any_invalidr� r� Z token_setZinvalid_for_token�cr r r � clean_query s"
zFTS5Model.clean_queryc C s t | �� |�S r� r� r� r r r r� $ s zFTS5Model.matchc G s |r| j |� S td�S d S )Nr� )r� r$ )rr �argsr r r r� + s
zFTS5Model.rankc G s t j| �� f|�� S r, )r; r� r� r� r r r r� 2 s zFTS5Model.bm25NFr� c C s | � t�|�||||�S r� )r� r� r� r� r r r r� 6 s �zFTS5Model.searchc
C s� |st d�}nbt|t�r\g }| jjD ] }|�|�||�|jd��� q$tj | �
� f|�� }ntj | �
� f|�� }d} |}
|r�| |� |�f} |r�|s�t |�}
| j | � �
| �t�|����|
�S )r� r� r� r )r$ r> rA re r� rG r rh r; r� r� r� r� r� r� r� r� r� ) rr r� r� r� r� r� r� r� r� r� r� r r r r� A s.
����zFTS5Model.search_bm25c
K sx | � � }|g}|g}|�� D ] \}}|�t|�� |�|� q t|�}ttd�| � � t|� td�t|� �} | jj� | �S )Nz INSERT INTO�VALUES)
r� �itemsrG r r �Clauser$ re rv r� )
rr r� Z extra_paramsr� �columnsr� �keyr2 Z inner_clause�clauser r r r� \ s �zFTS5Model._fts_cmdc C s, d| krdks n t d��| jd|d�S )Nr � z level must be between 0 and 16r� �r� )r0 r� )rr �levelr r r r� n s zFTS5Model.automergec C s | j d|d�S )Nr� r� r� )rr Znpagesr r r r� t s zFTS5Model.mergec C s | j d|d�S )N�pgszr� r� )rr r� r r r �set_pgszx s zFTS5Model.set_pgszc C s | j d|d�S )Nr� r� r� )rr Zrank_expressionr r r �set_rank| s zFTS5Model.set_rankc C s
| � d�S )Nz
delete-allr� r� r r r �
delete_all� s zFTS5Model.delete_all�rowc s� �dkrt d��d� }t� |�s�G � ��fdd�d�}t� t� t� t� |d�}�dkrbt� |d< d� j }t� |t|tf|�� t � |�S ) N)r� �colz)table_type must be either "row" or "col".z_vocab_model_%sc s8 e Zd Z� jjZ�p � jjd Ze�� �� e ���Z
dS )z"FTS5Model.VocabModel.<locals>.MetaZ_vN) r r r re rv r� r; Z fts5vocabr� r$ ro r �rr �
table_name�
table_typer r rq � s �rq )r� �docZcntr rq r� z%sVocab)
r0 �hasattr� BareField� IntegerFieldr r �setattr�typern �getattr)rr r r �attrrq �attrs�
class_namer r� r �
VocabModel� s
�
zFTS5Model.VocabModel)NFr� F)NFr� F)r� N)r r r r r r rq r� rz r� r� � staticmethodr� r� r� r� r� r� r� r� r� r� r� r� r� r� r r r r r r� � sX 7�
�
�
r� c s� � dkr4�j j�� D ]}|j�kr|� q4qtd���j j�G � ��fdd�dt�}G � �fdd�d�}d�j }t||fd|i�S )z3Model factory for the transitive closure extension.Nz,Unable to find self-referential foreign key.c s| e Zd Ze� Ze� Ze� Ze� Ze� Ze � Z
G dd� d�Z e d ��fdd� �Z
e d ��fdd� �Ze d
� ��fd d
� �ZdS )z&ClosureTable.<locals>.BaseClosureTablec @ s e Zd ZdZdS )z+ClosureTable.<locals>.BaseClosureTable.MetaZtransitive_closureNr� r r r r rq � s rq NFc sb � � � | j�d��j| �| jkd��| j|k�}|d k rJ|�| j|k�}n|s^|�| jdk�}|S �N�depth)�onr )r� r r� r� �idr� �root�rr �noder � include_noder� �rg r� r r � descendants� s
� ��z2ClosureTable.<locals>.BaseClosureTable.descendantsc s^ � � � | j�d��j| �| jkd��| j|k�}|rF|�| j|k�}n|sZ|�| jdk�}|S r )r� r r� r� r r� r r r r r � ancestors� s
� ��z0ClosureTable.<locals>.BaseClosureTable.ancestorsc s6 |j �� j�}��� �� |k�}|s2|��|k�}|S r, )�_datar rh r� r� )rr r r Zfk_valuer� �� foreign_keyrg r� r r �siblings� s
z/ClosureTable.<locals>.BaseClosureTable.siblings)NF)NF)F)r r r rk r r �idcolumn� parentcolumnr rl � tablenamerq rz r r r r r r r �BaseClosureTable� s r c s0 e Zd Z�jjZ�jj�jjj� jd�ZdZdS )zClosureTable.<locals>.Meta)r r r FN) r r r re rv r� r� rZ rp r )r rg r r rq � s �rq z %sClosure) re �relr� � rel_modelr0 r� rn r r )rg r � field_objr rq rh r r r � ClosureTable� s
+
r$ c s4 e Zd ZdZd
� fdd� Zdd� Zd dd �Z� ZS ) �SqliteExtQueryCompilerzQ
Subclass of QueryCompiler that can be used to construct virtual tables.
FNc
s| t t| �j||d�}t|t�rpd}|jj}t|t�rX|j d d� t
d�|g }t |� }qt|j � dt
d| �� nd}|r�|d7 }t
|�|j d< | �
|||�}|�rX|j d } t|�� �D ]�\}
} t| t�r�| �|d
k�} n\t�| �r�t| t�r�| �� } n>t| ttf��r"t
d d �tt| �� �} nt| t��s6t
| �} t t
|
�| �} d
| _| j �| � q�t |jdd ��rx|j �t
d�� |S )N)�safezCREATE VIRTUAL TABLErC ZUSINGzUSING %sz CREATE TABLEz IF NOT EXISTSr ���r� z'%s'r� �=Z
without_rowidz
WITHOUT ROWID) r" r% �
_create_table�
issubclassrn re ro r> r �nodesr$ r� rM rt �sortedr� �Fieldr� �inspect�isclass�Modelr? r@ r� �map�str�gluerG r )
r% rg r& rs r� � statement� extension�partsZ
table_optionsZcolumns_constraints�k�v�optionr( r r r) � sB
�
z$SqliteExtQueryCompiler._create_tablec C s> t |jdd �}|r |jf |�}ni }|r:|�|jf |�� |S )Nrp )r re rt �update)r% rg r� Z
extra_optionsZ
model_optionsrs r r r rt s z$SqliteExtQueryCompiler.clean_optionsc C s | � | �|||��S r, )�
parse_noder) )r% rg r& rs r r r rw * s z#SqliteExtQueryCompiler.create_table)FN)FN)r r r r r) rt rw r* r r r( r r% � s 6
r% F)rb c C s t d| dd�S )Nr� r~ )r3 )r� rQ r r r �
disqualify. s r< c s� e Zd ZdZeZd3� fdd� Zedd� �Zdd� Z d d
� Z
d d � Z d
d� Z dd� Z
d4dd�Zd5dd�Zd6dd�Zd7dd�Zd8dd �Zd9d d �Zd d � Zd!d"� Zd#d$� Zd%d&� Zd'd(� Zd)d*� Zd:d,d-�Zd;� fd.d/� Zd<d1d2�Z � Z S )=�SqliteExtDatabasez�
Database class which provides additional Sqlite-specific functionality:
* Register custom aggregates, collations and functions
* Specify a row factory
* Advanced transactions (specify isolation level)
Tc s
t t| �j|f|�|� i | _i | _i | _tg �| _d | _t r�|r�d| _
| � t j dd� | � t j
dd� | � t jdd� | � t jdd� | � t jdd� | � t jd d� | � t jd
d � nLd | _
| � tdd� | � tdd� | � tdd� | � tdd� | � td d� d S )
NT� date_partrC �
date_trunc�regexpr� r' r� r� Z
murmurhashrD F)r" r= r^ � _aggregates� _collations�
_functionsrO � _extensions� _row_factory�_c_ext�_using_c_extensions�register_functionZpeewee_date_partZpeewee_date_truncZ
peewee_regexpZ peewee_rankZ
peewee_luceneZ peewee_bm25Zpeewee_murmurhashr
r r r� r� )r% rv Z c_extensionsr� r` r( r r r^ ? s*
zSqliteExtDatabase.__init__c C s | j S r, )rG rQ r r r �using_c_extensionsW s z$SqliteExtDatabase.using_c_extensionsc C sJ | � |� | �|� | �|� | �|� | jr6| j|_| jrF| �|� d S r, )� _set_pragmas�_load_aggregates�_load_collations�_load_functionsrE � row_factoryrD �_load_extensions)r% �connr r r �_add_conn_hooks[ s
z!SqliteExtDatabase._add_conn_hooksc C s* | j �� D ]\}\}}|�|||� q
d S r, )rA r� �create_aggregate)r% rP rh �klass�
num_paramsr r r rK e s z"SqliteExtDatabase._load_aggregatesc C s$ | j �� D ]\}}|�||� q
d S r, )rB r� �create_collation)r% rP rh r; r r r rL i s z"SqliteExtDatabase._load_collationsc C s* | j �� D ]\}\}}|�|||� q
d S r, )rC r� �create_function)r% rP rh r; rT r r r rM m s z!SqliteExtDatabase._load_functionsc C s$ |� d� | jD ]}|�|� qd S �NT)r� rD r� )r% rP r5 r r r rO q s
z"SqliteExtDatabase._load_extensionsNr' c C s2 ||f| j |p|j�� < | �� s.| �| �� � d S r, )rA r �lower� is_closedrK �get_conn)r% rS rh rT r r r �register_aggregatev s z$SqliteExtDatabase.register_aggregatec s � ��fdd�}|S )Nc s �� | � �� | S r, )r[ )rS �rh rT r% r r � decorator| s z.SqliteExtDatabase.aggregate.<locals>.decoratorr �r% rh rT r] r r\ r � aggregate{ s zSqliteExtDatabase.aggregatec s@ � p|j � � fdd�}||_|| j� < | �� s<| �| �� � d S )Nc s | t d� �f }t|� S )Nz
collate %s)r$ r� )r� � expressions�rh r r �
_collation� s z8SqliteExtDatabase.register_collation.<locals>._collation)r � collationrB rY rL rZ )r% r; rh rb r ra r �register_collation� s
z$SqliteExtDatabase.register_collationc s � �fdd�}|S )Nc s �� | � � | S r, )rd �r; �rh r% r r r] � s z.SqliteExtDatabase.collation.<locals>.decoratorr )r% rh r] r rf r rc � s zSqliteExtDatabase.collationc C s. ||f| j |p|j< | �� s*| �| �� � d S r, )rC r rY rM rZ )r% r; rh rT r r r rH � s z#SqliteExtDatabase.register_functionc s � ��fdd�}|S )Nc s �� | � �� | S r, )rH re r\ r r r] � s z)SqliteExtDatabase.func.<locals>.decoratorr r^ r r\ r �func� s zSqliteExtDatabase.funcc C s4 | j �|� | �� s0| �� }|�d� |�|� d S rW )rD �addrY rZ r� r� )r% r5 rP r r r r� � s
z SqliteExtDatabase.load_extensionc C s | j |= d S r, )rA �r% rh r r r �unregister_aggregate� s z&SqliteExtDatabase.unregister_aggregatec C s | j |= d S r, )rB ri r r r �unregister_collation� s z&SqliteExtDatabase.unregister_collationc C s | j |= d S r, )rC ri r r r �unregister_function� s z%SqliteExtDatabase.unregister_functionc C s | j �|� d S r, )rD rT )r% r5 r r r �unload_extension� s z"SqliteExtDatabase.unload_extensionc C s
|| _ d S r, )rE )r% r; r r r rN � s z SqliteExtDatabase.row_factoryFc C s" | � � �|||�\}}| �||�S r, )�compilerrw r� )r% rg r& rs �sql�paramsr r r rw � s z SqliteExtDatabase.create_tablec s" t |t�rd S tt| ��|||�S r, )r* r� r" r= � create_index)r% rg �
field_name�uniquer( r r rq � s
�z SqliteExtDatabase.create_index�deferredc C s |� � dkst�t| |�S )N)rt Z immediateZ exclusive)rX �AssertionError�granular_transaction)r% � lock_typer r r rv � s z&SqliteExtDatabase.granular_transaction)T)Nr' )Nr' )N)N)Nr' )Nr' )FN)F)rt ) r r r r r% �compiler_classr^ �propertyrI rQ rK rL rM rO r[ r_ rd rc rH rg r� rj rk rl rm rN rw rq rv r* r r r( r r= 5 s2
r= c @ s e Zd Zddd�Zdd� ZdS )rv rt c C s || _ | j �� | _|| _d S r, )�dbrZ rP rw )r% rz rw r r r r^ � s z granular_transaction.__init__c C s | j �| j� d S r, )rz �beginrw rQ r r r �_begin� s zgranular_transaction._beginN)rt )r r r r^ r| r r r r rv � s
rv r� �MATCHc C s t | tj|�S r, )r r r} )�lhs�rhsr r r r� � s c s" t � �}� fdd�td|d�D �S )Nc s( g | ] }t �d � ||d � �d �qS )z@Ir r )�struct�unpack)rP rJ ��bufr r rR � s z%_parse_match_info.<locals>.<listcomp>r r )rE rF )r� �bufsizer r� r �_parse_match_info� s r� c G s� t | �}d}|d d� \}}|s,dg| }n$dg| }t|�D ]\}}|||< q>t|�D ]l}d|| d } t|�D ]N}
||
}|s�qt| |
d } || | d � \} }
| dkrt||t| �|
7 }qtqX| S )N� rC rD r r )r� � enumeraterF �float)�raw_match_infor� r� r� r� r� rJ �weightZ
phrase_numZphrase_info_idxZcol_numZcol_idx�x1Zx2r r r r� � s&
r� c G s� t | �}d}d}d}td�\}}}} || }
|| } || } | | }
|
| }|s\dg| }n(dg| }t|�D ]\}}|| ||< qnt|
�D ]�}t| �D ]�}|| }|dkr�q�t|| | �}t||
| �}|dkr�d}nd| ||| }|d| |d }t|| �}t||d �}tt�| | d |d �d�}||| }|dk�r\d}n||d | }||| | 7 }q�q�| S )
z�
Usage:
# Format string *must* be pcnalx
# Second parameter to bm25 specifies the index of the column, on
# the table being queries.
bm25(matchinfo(document_tbl, 'pcnalx'), 1) AS rank
g333333�?g �?r� r rD r r rC g �?)r� rF r� r� �max�math�log) r� r� r� �K�Br� ZP_OZC_OZN_OZA_OZ
term_countZ col_countZ
total_docsZL_OZX_Or� rJ r� �jZ
avg_lengthZ
doc_length�D�xZterm_frequencyZdocs_with_termZidfZdenomr r r r r� � sT
���
r� )N)Qr Zglobr. r� �os�rer� �sysZ
simplejsonr- � ImportErrorZvtfuncr �peeweer r r r r r r
r r r
r r � playhouser rF � version_infor2 r� r� r� r� r� r� r r �PrimaryKeyFieldr! � TextFieldr+ r rX �objectrc ri r rk � CharFieldrl �
FloatFieldrm r0 rn r{ r� Z _alphabetrO r� �upperr� rF r� �compiler� r� r$ r% �extendr< �SqliteDatabaser= rv r} � register_opsr� r� r� r� r r r r �<module> s� !
R ���
�
CH
�