ó ¿b›]c@sšdZddlmZddlmZddlmZddlmZddlmZddlmZddlmZdd lm Z dd lm Z dd lm Z dd lm Z dd lm Z ddlmZddlmZddlmZddlmZddlmZddlmZddlmZddlmZejrbddlmZneZdefd„ƒYZdefd„ƒYZdefd„ƒYZeeeehZeee eee hZd„Zd„Z d „Z!e d!„ƒZ"d"„Z#d#„Z$d$„Z%d%„Z&e d&„ƒZ'e d'„ƒZ(e d(„ƒZ)e d)„ƒZ*d*„Z+d+„Z,e e-d,„ƒZ.e e-d-„ƒZ/e e-d.„ƒZ0e e-d/„ƒZ1e e2d0„ƒZ3e e2d1„ƒZ4e d2„ƒZ5e d3„ƒZ6d4„Z7d5„Z8d6„Z9d7„Z:e e-e2d8„ƒZ;e e-e2d9„ƒZ<e e-e2d:„ƒZ=e e-e2d;„ƒZ>e e-e2d<„ƒZ?e e-e2d=„ƒZ@e d>„ƒZAe d?„ƒZBd@„ZCe dA„ƒZDe dB„ƒZEdC„ZFdD„ZGdE„ZHdF„ZIdG„ZJdH„ZKdI„ZLdJ„ZMdK„ZNdL„ZOdM„ZPdN„ZQe e%e&eefZRdO„ZSie e6e e6ee 6ee 6ZTdP„ZUejVeGeegƒjWeegƒZXeXjVeeLeMgƒZYejZdQdRdSƒZ[ejZdTdRdUƒZ\ejZdVdRdWƒZ]i5dXe!6dXe"6dXe86dXe96dXe6dXeL6dXeM6dYe6dYe6dYe6dYe 6dYe6dZe6dZe6d[eG6d[eF6d\eA6d\eB6d\e06d\e16d\e.6d\e/6d\e56d\e66d\e)6d\e*6d\e6d\e6d\e'6d\e(6d\eD6d\eE6d\e6d\e 6d\e6d\e 6d\e36d\e46d\e76d\e 6d\e%6d\e&6d]e6de6deC6d]eH6d]eI6d^e+6de#6d_e$6dSe[6e\e\6e]e]6Z^d`„Z_daS(bs*Defines operators used in SQL expressions.iÿÿÿÿ(tadd(tand_(tcontains(teq(tge(tgetitem(tgt(tinv(tle(tlshift(tlt(tmod(tmul(tne(tneg(tor_(trshift(tsub(ttruedivi(tutil(tdivt OperatorscBs_eZdZd Zd„Zd„Zd„Zded d„Z dd„Z d„Z d„Z RS( sÒBase of comparison and logical operators. Implements base methods :meth:`~sqlalchemy.sql.operators.Operators.operate` and :meth:`~sqlalchemy.sql.operators.Operators.reverse_operate`, as well as :meth:`~sqlalchemy.sql.operators.Operators.__and__`, :meth:`~sqlalchemy.sql.operators.Operators.__or__`, :meth:`~sqlalchemy.sql.operators.Operators.__invert__`. Usually is used via its most common subclass :class:`.ColumnOperators`. cCs|jt|ƒS(s.Implement the ``&`` operator. When used with SQL expressions, results in an AND operation, equivalent to :func:`~.expression.and_`, that is:: a & b is equivalent to:: from sqlalchemy import and_ and_(a, b) Care should be taken when using ``&`` regarding operator precedence; the ``&`` operator has the highest precedence. The operands should be enclosed in parenthesis if they contain further sub expressions:: (a == 2) & (b == 4) (toperateR(tselftother((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pyt__and__;scCs|jt|ƒS(s*Implement the ``|`` operator. When used with SQL expressions, results in an OR operation, equivalent to :func:`~.expression.or_`, that is:: a | b is equivalent to:: from sqlalchemy import or_ or_(a, b) Care should be taken when using ``|`` regarding operator precedence; the ``|`` operator has the highest precedence. The operands should be enclosed in parenthesis if they contain further sub expressions:: (a == 2) | (b == 4) (RR(RR((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pyt__or__SscCs |jtƒS(sImplement the ``~`` operator. When used with SQL expressions, results in a NOT operation, equivalent to :func:`~.expression.not_`, that is:: ~a is equivalent to:: from sqlalchemy import not_ not_(a) (RR(R((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pyt __invert__ksics+t||||ƒ‰‡‡fd†}|S(s!produce a generic operator function. e.g.:: somecolumn.op("*")(5) produces:: somecolumn * 5 This function can also be used to make bitwise operators explicit. For example:: somecolumn.op('&')(0xff) is a bitwise AND of the value in ``somecolumn``. :param operator: a string which will be output as the infix operator between this element and the expression passed to the generated function. :param precedence: precedence to apply to the operator, when parenthesizing expressions. A lower number will cause the expression to be parenthesized when applied against another operator with higher precedence. The default value of ``0`` is lower than all operators except for the comma (``,``) and ``AS`` operators. A value of 100 will be higher or equal to all operators, and -100 will be lower than or equal to all operators. :param is_comparison: if True, the operator will be considered as a "comparison" operator, that is which evaluates to a boolean true/false value, like ``==``, ``>``, etc. This flag should be set so that ORM relationships can establish that the operator is a comparison operator when used in a custom join condition. .. versionadded:: 0.9.2 - added the :paramref:`.Operators.op.is_comparison` flag. :param return_type: a :class:`.TypeEngine` class or object that will force the return type of an expression produced by this operator to be of that type. By default, operators that specify :paramref:`.Operators.op.is_comparison` will resolve to :class:`.Boolean`, and those that do not will be of the same type as the left-hand operand. .. versionadded:: 1.2.0b3 - added the :paramref:`.Operators.op.return_type` argument. .. seealso:: :ref:`types_operators` :ref:`relationship_custom_operator` cs ˆˆ|ƒS(N((R(toperatorR(s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pytagainst¸s(t custom_op(Rtopstringt precedencet is_comparisont return_typeR((RRs7lib/python2.7/site-packages/sqlalchemy/sql/operators.pytop|s:cCs|j|d|dtƒS(s+Return a custom boolean operator. This method is shorthand for calling :meth:`.Operators.op` and passing the :paramref:`.Operators.op.is_comparison` flag with True. .. versionadded:: 1.2.0b3 .. seealso:: :meth:`.Operators.op` R R!(R#tTrue(RRR ((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pytbool_op½scOstt|ƒƒ‚dS(s3Operate on an argument. This is the lowest level of operation, raises :class:`NotImplementedError` by default. Overriding this on a subclass can allow common behavior to be applied to all operations. For example, overriding :class:`.ColumnOperators` to apply ``func.lower()`` to the left and right side:: class MyComparator(ColumnOperators): def operate(self, op, other): return op(func.lower(self), func.lower(other)) :param op: Operator callable. :param \*other: the 'other' side of the operation. Will be a single scalar for most operations. :param \**kwargs: modifiers. These may be passed by special operators such as :meth:`ColumnOperators.contains`. N(tNotImplementedErrortstr(RR#Rtkwargs((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pyRÎscKstt|ƒƒ‚dS(sXReverse operate on an argument. Usage is the same as :meth:`operate`. N(R&R'(RR#RR(((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pytreverse_operateès(N( t__name__t __module__t__doc__t __slots__RRRtFalsetNoneR#R%RR)(((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pyR*s    @  RcBsGeZdZdZdedeed„Zd„Zd„Zd„ZRS(sÄRepresent a 'custom' operator. :class:`.custom_op` is normally instantiated when the :meth:`.Operators.op` or :meth:`.Operators.bool_op` methods are used to create a custom operator callable. The class can also be used directly when programmatically constructing expressions. E.g. to represent the "factorial" operation:: from sqlalchemy.sql import UnaryExpression from sqlalchemy.sql import operators from sqlalchemy import Numeric unary = UnaryExpression(table.c.somecolumn, modifier=operators.custom_op("!"), type_=Numeric) .. seealso:: :meth:`.Operators.op` :meth:`.Operators.bool_op` RicCsO||_||_||_||_||_|rB|j|ƒnd|_dS(N(RR R!tnatural_self_precedentteager_groupingt _to_instanceR/R"(RRR R!R"R0R1((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pyt__init__ s     cCst|tƒo|j|jkS(N(t isinstanceRR(RR((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pyt__eq__scCs t|ƒS(N(tid(R((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pyt__hash__"scKs|j|||S(N(R(Rtlefttrighttkw((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pyt__call__%sN( R*R+R,R.R/R3R5R7R;(((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pyRñs  tColumnOperatorscBsÙeZdZd0Zd1Zd„Zd„Zej Z d„Z d„Z d„Z d„Z d„Zd„Zd „Zd „Zd „Zd „Zd „Zd„Zd1d„Zd1d„Zd„Zd„Zd1d„Zd1d„Zd„Zd„Zd„Zd„Zd„Z d„Z!d„Z"d„Z#d„Z$d„Z%d„Z&d „Z'd!„Z(d"„Z)d#„Z*d$„Z+e,d%„Z-d&„Z.d'„Z/d(„Z0d)„Z1d*„Z2d+„Z3d,„Z4d-„Z5d.„Z6d/„Z7RS(2sDefines boolean, comparison, and other operators for :class:`.ColumnElement` expressions. By default, all methods call down to :meth:`.operate` or :meth:`.reverse_operate`, passing in the appropriate operator function from the Python builtin ``operator`` module or a SQLAlchemy-specific operator function from :mod:`sqlalchemy.expression.operators`. For example the ``__eq__`` function:: def __eq__(self, other): return self.operate(operators.eq, other) Where ``operators.eq`` is essentially:: def eq(a, b): return a == b The core column expression unit :class:`.ColumnElement` overrides :meth:`.Operators.operate` and others to return further :class:`.ColumnElement` constructs, so that the ``==`` operation above is replaced by a clause construct. .. seealso:: :ref:`types_operators` :attr:`.TypeEngine.comparator_factory` :class:`.ColumnOperators` :class:`.PropComparator` cCs|jt|ƒS(sdImplement the ``<`` operator. In a column context, produces the clause ``a < b``. (RR (RR((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pyt__lt__TscCs|jt|ƒS(sfImplement the ``<=`` operator. In a column context, produces the clause ``a <= b``. (RR(RR((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pyt__le__\scCs|jt|ƒS(s Implement the ``==`` operator. In a column context, produces the clause ``a = b``. If the target is ``None``, produces ``a IS NULL``. (RR(RR((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pyR5fscCs|jt|ƒS(s¥Implement the ``!=`` operator. In a column context, produces the clause ``a != b``. If the target is ``None``, produces ``a IS NOT NULL``. (RR (RR((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pyt__ne__oscCs|jt|ƒS(sÈImplement the ``IS DISTINCT FROM`` operator. Renders "a IS DISTINCT FROM b" on most platforms; on some such as SQLite may render "a IS NOT b". .. versionadded:: 1.1 (Rtis_distinct_from(RR((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pyR@xs cCs|jt|ƒS(sÌImplement the ``IS NOT DISTINCT FROM`` operator. Renders "a IS NOT DISTINCT FROM b" on most platforms; on some such as SQLite may render "a IS b". .. versionadded:: 1.1 (Rtisnot_distinct_from(RR((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pyRAƒs cCs|jt|ƒS(sdImplement the ``>`` operator. In a column context, produces the clause ``a > b``. (RR(RR((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pyt__gt__ŽscCs|jt|ƒS(sfImplement the ``>=`` operator. In a column context, produces the clause ``a >= b``. (RR(RR((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pyt__ge__–scCs |jtƒS(saImplement the ``-`` operator. In a column context, produces the clause ``-a``. (RR(R((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pyt__neg__žscCs|jt|ƒS(N(RR(RR((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pyt __contains__¦scCs|jt|ƒS(s‹Implement the [] operator. This can be used by some database-specific types such as PostgreSQL ARRAY and HSTORE. (RR(Rtindex((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pyt __getitem__©scCs|jt|ƒS(s²implement the << operator. Not used by SQLAlchemy core, this is provided for custom operator systems which want to use << as an extension point. (RR (RR((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pyt __lshift__²scCs|jt|ƒS(s²implement the >> operator. Not used by SQLAlchemy core, this is provided for custom operator systems which want to use >> as an extension point. (RR(RR((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pyt __rshift__»scCs|jt|ƒS(sœImplement the 'concat' operator. In a column context, produces the clause ``a || b``, or uses the ``concat()`` operator on MySQL. (Rt concat_op(RR((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pytconcatÄscCs|jt|d|ƒS(süImplement the ``like`` operator. In a column context, produces the expression:: a LIKE other E.g.:: stmt = select([sometable]).\ where(sometable.c.column.like("%foobar%")) :param other: expression to be compared :param escape: optional escape character, renders the ``ESCAPE`` keyword, e.g.:: somecolumn.like("foo/%bar", escape="/") .. seealso:: :meth:`.ColumnOperators.ilike` tescape(Rtlike_op(RRRL((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pytlikeÍscCs|jt|d|ƒS(sImplement the ``ilike`` operator, e.g. case insensitive LIKE. In a column context, produces an expression either of the form:: lower(a) LIKE lower(other) Or on backends that support the ILIKE operator:: a ILIKE other E.g.:: stmt = select([sometable]).\ where(sometable.c.column.ilike("%foobar%")) :param other: expression to be compared :param escape: optional escape character, renders the ``ESCAPE`` keyword, e.g.:: somecolumn.ilike("foo/%bar", escape="/") .. seealso:: :meth:`.ColumnOperators.like` RL(Rtilike_op(RRRL((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pytilikeæscCs|jt|ƒS(sÇ Implement the ``in`` operator. In a column context, produces the clause ``column IN ``. The given parameter ``other`` may be: * A list of literal values, e.g.:: stmt.where(column.in_([1, 2, 3])) In this calling form, the list of items is converted to a set of bound parameters the same length as the list given:: WHERE COL IN (?, ?, ?) * A list of tuples may be provided if the comparison is against a :func:`.tuple_` containing multiple expressions:: from sqlalchemy import tuple_ stmt.where(tuple_(col1, col2).in_([(1, 10), (2, 20), (3, 30)])) * An empty list, e.g.:: stmt.where(column.in_([])) In this calling form, the expression renders a "false" expression, e.g.:: WHERE 1 != 1 This "false" expression has historically had different behaviors in older SQLAlchemy versions, see :paramref:`.create_engine.empty_in_strategy` for behavioral options. .. versionchanged:: 1.2 simplified the behavior of "empty in" expressions * A bound parameter, e.g. :func:`.bindparam`, may be used if it includes the :paramref:`.bindparam.expanding` flag:: stmt.where(column.in_(bindparam('value', expanding=True))) In this calling form, the expression renders a special non-SQL placeholder expression that looks like:: WHERE COL IN ([EXPANDING_value]) This placeholder expression is intercepted at statement execution time to be converted into the variable number of bound parameter form illustrated earlier. If the statement were executed as:: connection.execute(stmt, {"value": [1, 2, 3]}) The database would be passed a bound parameter for each value:: WHERE COL IN (?, ?, ?) .. versionadded:: 1.2 added "expanding" bound parameters If an empty list is passed, a special "empty list" expression, which is specific to the database in use, is rendered. On SQLite this would be:: WHERE COL IN (SELECT 1 FROM (SELECT 1) WHERE 1!=1) .. versionadded:: 1.3 "expanding" bound parameters now support empty lists * a :func:`.select` construct, which is usually a correlated scalar select:: stmt.where( column.in_( select([othertable.c.y]). where(table.c.x == othertable.c.x) ) ) In this calling form, :meth:`.ColumnOperators.in_` renders as given:: WHERE COL IN (SELECT othertable.y FROM othertable WHERE othertable.x = table.x) :param other: a list of literals, a :func:`.select` construct, or a :func:`.bindparam` construct that includes the :paramref:`.bindparam.expanding` flag set to True. (Rtin_op(RR((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pytin_sYcCs|jt|ƒS(sÞimplement the ``NOT IN`` operator. This is equivalent to using negation with :meth:`.ColumnOperators.in_`, i.e. ``~x.in_(y)``. In the case that ``other`` is an empty sequence, the compiler produces an "empty not in" expression. This defaults to the expression "1 = 1" to produce true in all cases. The :paramref:`.create_engine.empty_in_strategy` may be used to alter this behavior. .. versionchanged:: 1.2 The :meth:`.ColumnOperators.in_` and :meth:`.ColumnOperators.notin_` operators now produce a "static" expression for an empty IN sequence by default. .. seealso:: :meth:`.ColumnOperators.in_` (Rtnotin_op(RR((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pytnotin_^scCs|jt|d|ƒS(sÞimplement the ``NOT LIKE`` operator. This is equivalent to using negation with :meth:`.ColumnOperators.like`, i.e. ``~x.like(y)``. .. seealso:: :meth:`.ColumnOperators.like` RL(Rt notlike_op(RRRL((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pytnotlikevs cCs|jt|d|ƒS(sâimplement the ``NOT ILIKE`` operator. This is equivalent to using negation with :meth:`.ColumnOperators.ilike`, i.e. ``~x.ilike(y)``. .. seealso:: :meth:`.ColumnOperators.ilike` RL(Rt notilike_op(RRRL((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pytnotilikeƒs cCs|jt|ƒS(sVImplement the ``IS`` operator. Normally, ``IS`` is generated automatically when comparing to a value of ``None``, which resolves to ``NULL``. However, explicit usage of ``IS`` may be desirable if comparing to boolean values on certain platforms. .. seealso:: :meth:`.ColumnOperators.isnot` (Rtis_(RR((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pyRYs cCs|jt|ƒS(s`Implement the ``IS NOT`` operator. Normally, ``IS NOT`` is generated automatically when comparing to a value of ``None``, which resolves to ``NULL``. However, explicit usage of ``IS NOT`` may be desirable if comparing to boolean values on certain platforms. .. seealso:: :meth:`.ColumnOperators.is_` (Rtisnot(RR((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pyRZs cKs|jt||S(sû Implement the ``startswith`` operator. Produces a LIKE expression that tests against a match for the start of a string value:: column LIKE || '%' E.g.:: stmt = select([sometable]).\ where(sometable.c.column.startswith("foobar")) Since the operator uses ``LIKE``, wildcard characters ``"%"`` and ``"_"`` that are present inside the expression will behave like wildcards as well. For literal string values, the :paramref:`.ColumnOperators.startswith.autoescape` flag may be set to ``True`` to apply escaping to occurrences of these characters within the string value so that they match as themselves and not as wildcard characters. Alternatively, the :paramref:`.ColumnOperators.startswith.escape` parameter will establish a given character as an escape character which can be of use when the target expression is not a literal string. :param other: expression to be compared. This is usually a plain string value, but can also be an arbitrary SQL expression. LIKE wildcard characters ``%`` and ``_`` are not escaped by default unless the :paramref:`.ColumnOperators.startswith.autoescape` flag is set to True. :param autoescape: boolean; when True, establishes an escape character within the LIKE expression, then applies it to all occurrences of ``"%"``, ``"_"`` and the escape character itself within the comparison value, which is assumed to be a literal string and not a SQL expression. An expression such as:: somecolumn.startswith("foo%bar", autoescape=True) Will render as:: somecolumn LIKE :param || '%' ESCAPE '/' With the value of :param as ``"foo/%bar"``. .. versionadded:: 1.2 .. versionchanged:: 1.2.0 The :paramref:`.ColumnOperators.startswith.autoescape` parameter is now a simple boolean rather than a character; the escape character itself is also escaped, and defaults to a forwards slash, which itself can be customized using the :paramref:`.ColumnOperators.startswith.escape` parameter. :param escape: a character which when given will render with the ``ESCAPE`` keyword to establish that character as the escape character. This character can then be placed preceding occurrences of ``%`` and ``_`` to allow them to act as themselves and not wildcard characters. An expression such as:: somecolumn.startswith("foo/%bar", escape="^") Will render as:: somecolumn LIKE :param || '%' ESCAPE '^' The parameter may also be combined with :paramref:`.ColumnOperators.startswith.autoescape`:: somecolumn.startswith("foo%bar^bat", escape="^", autoescape=True) Where above, the given literal parameter will be converted to ``"foo^%bar^^bat"`` before being passed to the database. .. seealso:: :meth:`.ColumnOperators.endswith` :meth:`.ColumnOperators.contains` :meth:`.ColumnOperators.like` (Rt startswith_op(RRR(((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pyt startswithªsVcKs|jt||S(sã Implement the 'endswith' operator. Produces a LIKE expression that tests against a match for the end of a string value:: column LIKE '%' || E.g.:: stmt = select([sometable]).\ where(sometable.c.column.endswith("foobar")) Since the operator uses ``LIKE``, wildcard characters ``"%"`` and ``"_"`` that are present inside the expression will behave like wildcards as well. For literal string values, the :paramref:`.ColumnOperators.endswith.autoescape` flag may be set to ``True`` to apply escaping to occurrences of these characters within the string value so that they match as themselves and not as wildcard characters. Alternatively, the :paramref:`.ColumnOperators.endswith.escape` parameter will establish a given character as an escape character which can be of use when the target expression is not a literal string. :param other: expression to be compared. This is usually a plain string value, but can also be an arbitrary SQL expression. LIKE wildcard characters ``%`` and ``_`` are not escaped by default unless the :paramref:`.ColumnOperators.endswith.autoescape` flag is set to True. :param autoescape: boolean; when True, establishes an escape character within the LIKE expression, then applies it to all occurrences of ``"%"``, ``"_"`` and the escape character itself within the comparison value, which is assumed to be a literal string and not a SQL expression. An expression such as:: somecolumn.endswith("foo%bar", autoescape=True) Will render as:: somecolumn LIKE '%' || :param ESCAPE '/' With the value of :param as ``"foo/%bar"``. .. versionadded:: 1.2 .. versionchanged:: 1.2.0 The :paramref:`.ColumnOperators.endswith.autoescape` parameter is now a simple boolean rather than a character; the escape character itself is also escaped, and defaults to a forwards slash, which itself can be customized using the :paramref:`.ColumnOperators.endswith.escape` parameter. :param escape: a character which when given will render with the ``ESCAPE`` keyword to establish that character as the escape character. This character can then be placed preceding occurrences of ``%`` and ``_`` to allow them to act as themselves and not wildcard characters. An expression such as:: somecolumn.endswith("foo/%bar", escape="^") Will render as:: somecolumn LIKE '%' || :param ESCAPE '^' The parameter may also be combined with :paramref:`.ColumnOperators.endswith.autoescape`:: somecolumn.endswith("foo%bar^bat", escape="^", autoescape=True) Where above, the given literal parameter will be converted to ``"foo^%bar^^bat"`` before being passed to the database. .. seealso:: :meth:`.ColumnOperators.startswith` :meth:`.ColumnOperators.contains` :meth:`.ColumnOperators.like` (Rt endswith_op(RRR(((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pytendswithsVcKs|jt||S(sü Implement the 'contains' operator. Produces a LIKE expression that tests against a match for the middle of a string value:: column LIKE '%' || || '%' E.g.:: stmt = select([sometable]).\ where(sometable.c.column.contains("foobar")) Since the operator uses ``LIKE``, wildcard characters ``"%"`` and ``"_"`` that are present inside the expression will behave like wildcards as well. For literal string values, the :paramref:`.ColumnOperators.contains.autoescape` flag may be set to ``True`` to apply escaping to occurrences of these characters within the string value so that they match as themselves and not as wildcard characters. Alternatively, the :paramref:`.ColumnOperators.contains.escape` parameter will establish a given character as an escape character which can be of use when the target expression is not a literal string. :param other: expression to be compared. This is usually a plain string value, but can also be an arbitrary SQL expression. LIKE wildcard characters ``%`` and ``_`` are not escaped by default unless the :paramref:`.ColumnOperators.contains.autoescape` flag is set to True. :param autoescape: boolean; when True, establishes an escape character within the LIKE expression, then applies it to all occurrences of ``"%"``, ``"_"`` and the escape character itself within the comparison value, which is assumed to be a literal string and not a SQL expression. An expression such as:: somecolumn.contains("foo%bar", autoescape=True) Will render as:: somecolumn LIKE '%' || :param || '%' ESCAPE '/' With the value of :param as ``"foo/%bar"``. .. versionadded:: 1.2 .. versionchanged:: 1.2.0 The :paramref:`.ColumnOperators.contains.autoescape` parameter is now a simple boolean rather than a character; the escape character itself is also escaped, and defaults to a forwards slash, which itself can be customized using the :paramref:`.ColumnOperators.contains.escape` parameter. :param escape: a character which when given will render with the ``ESCAPE`` keyword to establish that character as the escape character. This character can then be placed preceding occurrences of ``%`` and ``_`` to allow them to act as themselves and not wildcard characters. An expression such as:: somecolumn.contains("foo/%bar", escape="^") Will render as:: somecolumn LIKE '%' || :param || '%' ESCAPE '^' The parameter may also be combined with :paramref:`.ColumnOperators.contains.autoescape`:: somecolumn.contains("foo%bar^bat", escape="^", autoescape=True) Where above, the given literal parameter will be converted to ``"foo^%bar^^bat"`` before being passed to the database. .. seealso:: :meth:`.ColumnOperators.startswith` :meth:`.ColumnOperators.endswith` :meth:`.ColumnOperators.like` (Rt contains_op(RRR(((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pyRZsWcKs|jt||S(sYImplements a database-specific 'match' operator. :meth:`~.ColumnOperators.match` attempts to resolve to a MATCH-like function or operator provided by the backend. Examples include: * PostgreSQL - renders ``x @@ to_tsquery(y)`` * MySQL - renders ``MATCH (x) AGAINST (y IN BOOLEAN MODE)`` * Oracle - renders ``CONTAINS(x, y)`` * other backends may provide special implementations. * Backends without any special implementation will emit the operator as "MATCH". This is compatible with SQLite, for example. (Rtmatch_op(RRR(((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pytmatch³scCs |jtƒS(sMProduce a :func:`~.expression.desc` clause against the parent object.(Rtdesc_op(R((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pytdescÅscCs |jtƒS(sLProduce a :func:`~.expression.asc` clause against the parent object.(Rtasc_op(R((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pytascÊscCs |jtƒS(sSProduce a :func:`~.expression.nullsfirst` clause against the parent object.(Rt nullsfirst_op(R((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pyt nullsfirstÏscCs |jtƒS(sRProduce a :func:`~.expression.nullslast` clause against the parent object.(Rt nullslast_op(R((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pyt nullslastÔscCs|jt|ƒS(s¶Produce a :func:`~.expression.collate` clause against the parent object, given the collation string. .. seealso:: :func:`~.expression.collate` (Rtcollate(Rt collation((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pyRjÙs cCs|jt|ƒS(saImplement the ``+`` operator in reverse. See :meth:`.ColumnOperators.__add__`. (R)R(RR((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pyt__radd__äscCs|jt|ƒS(saImplement the ``-`` operator in reverse. See :meth:`.ColumnOperators.__sub__`. (R)R(RR((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pyt__rsub__ìscCs|jt|ƒS(saImplement the ``*`` operator in reverse. See :meth:`.ColumnOperators.__mul__`. (R)R (RR((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pyt__rmul__ôscCs|jt|ƒS(saImplement the ``/`` operator in reverse. See :meth:`.ColumnOperators.__div__`. (R)R(RR((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pyt__rdiv__üscCs|jt|ƒS(saImplement the ``%`` operator in reverse. See :meth:`.ColumnOperators.__mod__`. (R)R (RR((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pyt__rmod__scCs|jt||d|ƒS(s{Produce a :func:`~.expression.between` clause against the parent object, given the lower and upper range. t symmetric(Rt between_op(RtclefttcrightRq((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pytbetween scCs |jtƒS(s[Produce a :func:`~.expression.distinct` clause against the parent object. (Rt distinct_op(R((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pytdistinctscCs |jtƒS(s‹Produce a :func:`~.expression.any_` clause against the parent object. This operator is only appropriate against a scalar subquery object, or for some backends an column expression that is against the ARRAY type, e.g.:: # postgresql '5 = ANY (somearray)' expr = 5 == mytable.c.somearray.any_() # mysql '5 = ANY (SELECT value FROM table)' expr = 5 == select([table.c.value]).as_scalar().any_() .. seealso:: :func:`~.expression.any_` - standalone version :func:`~.expression.all_` - ALL operator .. versionadded:: 1.1 (Rtany_op(R((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pytany_scCs |jtƒS(s‹Produce a :func:`~.expression.all_` clause against the parent object. This operator is only appropriate against a scalar subquery object, or for some backends an column expression that is against the ARRAY type, e.g.:: # postgresql '5 = ALL (somearray)' expr = 5 == mytable.c.somearray.all_() # mysql '5 = ALL (SELECT value FROM table)' expr = 5 == select([table.c.value]).as_scalar().all_() .. seealso:: :func:`~.expression.all_` - standalone version :func:`~.expression.any_` - ANY operator .. versionadded:: 1.1 (Rtall_op(R((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pytall_3scCs|jt|ƒS(s4Implement the ``+`` operator. In a column context, produces the clause ``a + b`` if the parent object has non-string affinity. If the parent object has a string affinity, produces the concatenation operator, ``a || b`` - see :meth:`.ColumnOperators.concat`. (RR(RR((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pyt__add__Ls cCs|jt|ƒS(sdImplement the ``-`` operator. In a column context, produces the clause ``a - b``. (RR(RR((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pyt__sub__XscCs|jt|ƒS(sdImplement the ``*`` operator. In a column context, produces the clause ``a * b``. (RR (RR((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pyt__mul__`scCs|jt|ƒS(sdImplement the ``/`` operator. In a column context, produces the clause ``a / b``. (RR(RR((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pyt__div__hscCs|jt|ƒS(sdImplement the ``%`` operator. In a column context, produces the clause ``a % b``. (RR (RR((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pyt__mod__pscCs|jt|ƒS(seImplement the ``//`` operator. In a column context, produces the clause ``a / b``. (RR(RR((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pyt __truediv__xscCs|jt|ƒS(sfImplement the ``//`` operator in reverse. See :meth:`.ColumnOperators.__truediv__`. (R)R(RR((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pyt __rtruediv__€s(N(8R*R+R,R-R/t timetupleR=R>RR7R5R?R@RARBRCRDRERGRHRIRKRNRPRRRTRVRXRYRZR\R^RRaRcReRgRiRjRlRmRnRoRpR.RuRwRyR{R|R}R~RR€RR‚(((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pyR<)sf$          [  X X Y                   cCstj|ƒ|S(N(t _commutativeR(tfn((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pytcommutative_ops cCstj|ƒ|S(N(t _comparisonR(R…((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pyt comparison_op’s cCs tƒ‚dS(N(R&(((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pytfrom_—scCs tƒ‚dS(N(R&(((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pytfunction_as_comparison_op›scCs tƒ‚dS(N(R&(((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pytas_ scCs tƒ‚dS(N(R&(((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pytexists¤scCs tƒ‚dS(N(R&(ta((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pytistrue¨scCs tƒ‚dS(N(R&(R((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pytisfalse¬scCs |j|ƒS(N(R@(Rtb((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pyR@°scCs |j|ƒS(N(RA(RR((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pyRAµscCs |j|ƒS(N(RY(RR((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pyRYºscCs |j|ƒS(N(RZ(RR((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pyRZ¿scCs 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|jƒS(N(Ry(R((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pyRxøscCs |jƒS(N(R{(R((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pyRzüscCs¹|r©|tk r"tjdƒn|dkr7d}nt|tjjƒs[tdƒ‚n|dkr€|j|||ƒ}n|jd|dƒjd|dƒ}n||d|ƒS(Ns;The autoescape parameter is now a simple boolean True/Falset/s*String value expected when autoescape=Truet%t_RL(R•R–( R$RtwarnR/R4tcompatt string_typest TypeErrortreplace(R…RRLt autoescape((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pyt_escaped_like_impls     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tƒ‚dS(N(R&(RR((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pytempty_notin_opEscCs tƒ‚dS(N(R&(RR((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pyt filter_opJscCs |j|ƒS(N(RK(RR((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pyRJNscCs |jƒS(N(Rc(R((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pyRbRscCs |jƒS(N(Re(R((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pyRdVscCs |jƒS(N(Rg(R((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pyRfZscCs |jƒS(N(Ri(R((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pyRh^scCs tƒ‚dS(N(R&(RR((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pytjson_getitem_opbscCs tƒ‚dS(N(R&(RR((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pytjson_path_getitem_opfscCs"|tkp!t|tƒo!|jS(N(R‡R4RR!(R#((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pyR!jscCs 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Note this is not the same as negation. (t_mirrortget(R#((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pytmirrorˆst_asboolt canonicaliöÿÿÿt _smallestiœÿÿÿt_largestidiiiiiiiicCsZ||krt|ƒrtStj|t|dtƒƒtj|t|dtƒƒkSdS(NR (R¬R.t _PRECEDENCER°tgetattrR´Rµ(RR((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pyt is_precedentÙs N(`R,RRRRRRRRRRR R R R R RRRRRtRtpy2kRtobjectRRR<R„R‡R†RˆR‰RŠR‹RŒRŽRR@RARYRZRjR#R/RMRURORWR.RrR“RQRSRvRxRzRR[RžR]RŸR_R R`R¢R£R¤R¥R¦RJRbRdRfRhR§R¨R!R©RªR¬R­R®R¯R±tuniont differencet _associativeR«tsymbolR²R´RµR¶R¸(((s7lib/python2.7/site-packages/sqlalchemy/sql/operators.pyt s: Ç8ÿÿÿc                           " '