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Diffstat (limited to 'addons/web/static/src/js/pyeval.js')
| -rw-r--r-- | addons/web/static/src/js/pyeval.js | 774 |
1 files changed, 774 insertions, 0 deletions
diff --git a/addons/web/static/src/js/pyeval.js b/addons/web/static/src/js/pyeval.js new file mode 100644 index 00000000000..265449f9f64 --- /dev/null +++ b/addons/web/static/src/js/pyeval.js @@ -0,0 +1,774 @@ +/* + * py.js helpers and setup + */ +openerp.web.pyeval = function (instance) { + instance.web.pyeval = {}; + + var obj = function () {}; + obj.prototype = py.object; + var asJS = function (arg) { + if (arg instanceof obj) { + return arg.toJSON(); + } + return arg; + }; + + var datetime = py.PY_call(py.object); + + /** + * computes (Math.floor(a/b), a%b and passes that to the callback. + * + * returns the callback's result + */ + var divmod = function (a, b, fn) { + var mod = a%b; + // in python, sign(a % b) === sign(b). Not in JS. If wrong side, add a + // round of b + if (mod > 0 && b < 0 || mod < 0 && b > 0) { + mod += b; + } + return fn(Math.floor(a/b), mod); + }; + /** + * Passes the fractional and integer parts of x to the callback, returns + * the callback's result + */ + var modf = function (x, fn) { + var mod = x%1; + if (mod < 0) { + mod += 1; + } + return fn(mod, Math.floor(x)); + }; + var zero = py.float.fromJSON(0); + + // Port from pypy/lib_pypy/datetime.py + var DAYS_IN_MONTH = [null, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31]; + var DAYS_BEFORE_MONTH = [null]; + var dbm = 0; + for (var i=1; i<DAYS_IN_MONTH.length; ++i) { + DAYS_BEFORE_MONTH.push(dbm); + dbm += DAYS_IN_MONTH[i]; + } + var is_leap = function (year) { + return year % 4 === 0 && (year % 100 !== 0 || year % 400 === 0); + }; + var days_before_year = function (year) { + var y = year - 1; + return y*365 + Math.floor(y/4) - Math.floor(y/100) + Math.floor(y/400); + }; + var days_in_month = function (year, month) { + if (month === 2 && is_leap(year)) { + return 29; + } + return DAYS_IN_MONTH[month]; + }; + var days_before_month = function (year, month) { + var post_leap_feb = month > 2 && is_leap(year); + return DAYS_BEFORE_MONTH[month] + + (post_leap_feb ? 1 : 0); + }; + var ymd2ord = function (year, month, day) { + var dim = days_in_month(year, month); + if (!(1 <= day && day <= dim)) { + throw new Error("ValueError: day must be in 1.." + dim); + } + return days_before_year(year) + + days_before_month(year, month) + + day; + }; + var DI400Y = days_before_year(401); + var DI100Y = days_before_year(101); + var DI4Y = days_before_year(5); + var assert = function (bool) { + if (!bool) { + throw new Error("AssertionError"); + } + }; + var ord2ymd = function (n) { + --n; + var n400, n100, n4, n1, n0; + divmod(n, DI400Y, function (_n400, n) { + n400 = _n400; + divmod(n, DI100Y, function (_n100, n) { + n100 = _n100; + divmod(n, DI4Y, function (_n4, n) { + n4 = _n4; + divmod(n, 365, function (_n1, n) { + n1 = _n1; + n0 = n; + }) + }); + }); + }); + + n = n0; + var year = n400 * 400 + 1 + n100 * 100 + n4 * 4 + n1; + if (n1 == 4 || n100 == 100) { + assert(n0 === 0); + return { + year: year - 1, + month: 12, + day: 31 + }; + } + + var leapyear = n1 === 3 && (n4 !== 24 || n100 == 3); + assert(leapyear == is_leap(year)); + var month = (n + 50) >> 5; + var preceding = DAYS_BEFORE_MONTH[month] + ((month > 2 && leapyear) ? 1 : 0); + if (preceding > n) { + --month; + preceding -= DAYS_IN_MONTH[month] + ((month === 2 && leapyear) ? 1 : 0); + } + n -= preceding; + return { + year: year, + month: month, + day: n+1 + }; + }; + + /** + * Converts the stuff passed in into a valid date, applying overflows as needed + */ + var tmxxx = function (year, month, day, hour, minute, second, microsecond) { + hour = hour || 0; minute = minute || 0; second = second || 0; + microsecond = microsecond || 0; + + if (microsecond < 0 || microsecond > 999999) { + divmod(microsecond, 1000000, function (carry, ms) { + microsecond = ms; + second += carry + }); + } + if (second < 0 || second > 59) { + divmod(second, 60, function (carry, s) { + second = s; + minute += carry; + }); + } + if (minute < 0 || minute > 59) { + divmod(minute, 60, function (carry, m) { + minute = m; + hour += carry; + }) + } + if (hour < 0 || hour > 23) { + divmod(hour, 24, function (carry, h) { + hour = h; + day += carry; + }) + } + // That was easy. Now it gets muddy: the proper range for day + // can't be determined without knowing the correct month and year, + // but if day is, e.g., plus or minus a million, the current month + // and year values make no sense (and may also be out of bounds + // themselves). + // Saying 12 months == 1 year should be non-controversial. + if (month < 1 || month > 12) { + divmod(month-1, 12, function (carry, m) { + month = m + 1; + year += carry; + }) + } + // Now only day can be out of bounds (year may also be out of bounds + // for a datetime object, but we don't care about that here). + // If day is out of bounds, what to do is arguable, but at least the + // method here is principled and explainable. + var dim = days_in_month(year, month); + if (day < 1 || day > dim) { + // Move day-1 days from the first of the month. First try to + // get off cheap if we're only one day out of range (adjustments + // for timezone alone can't be worse than that). + if (day === 0) { + --month; + if (month > 0) { + day = days_in_month(year, month); + } else { + --year; month=12; day=31; + } + } else if (day == dim + 1) { + ++month; + day = 1; + if (month > 12) { + month = 1; + ++year; + } + } else { + var r = ord2ymd(ymd2ord(year, month, 1) + (day - 1)); + year = r.year; + month = r.month; + day = r.day; + } + } + return { + year: year, + month: month, + day: day, + hour: hour, + minute: minute, + second: second, + microsecond: microsecond + }; + }; + datetime.timedelta = py.type('timedelta', null, { + __init__: function () { + var args = py.PY_parseArgs(arguments, [ + ['days', zero], ['seconds', zero], ['microseconds', zero], + ['milliseconds', zero], ['minutes', zero], ['hours', zero], + ['weeks', zero] + ]); + + var d = 0, s = 0, m = 0; + var days = args.days.toJSON() + args.weeks.toJSON() * 7; + var seconds = args.seconds.toJSON() + + args.minutes.toJSON() * 60 + + args.hours.toJSON() * 3600; + var microseconds = args.microseconds.toJSON() + + args.milliseconds.toJSON() * 1000; + + // Get rid of all fractions, and normalize s and us. + // Take a deep breath <wink>. + var daysecondsfrac = modf(days, function (dayfrac, days) { + d = days; + if (dayfrac) { + return modf(dayfrac * 24 * 3600, function (dsf, dsw) { + s = dsw; + return dsf; + }); + } + return 0; + }); + + var secondsfrac = modf(seconds, function (sf, s) { + seconds = s; + return sf + daysecondsfrac; + }); + divmod(seconds, 24*3600, function (days, seconds) { + d += days; + s += seconds + }); + // seconds isn't referenced again before redefinition + + microseconds += secondsfrac * 1e6; + divmod(microseconds, 1000000, function (seconds, microseconds) { + divmod(seconds, 24*3600, function (days, seconds) { + d += days; + s += seconds; + m += Math.round(microseconds); + }); + }); + + // Carrying still possible here? + + this.days = d; + this.seconds = s; + this.microseconds = m; + }, + __str__: function () { + var hh, mm, ss; + divmod(this.seconds, 60, function (m, s) { + divmod(m, 60, function (h, m) { + hh = h; + mm = m; + ss = s; + }); + }); + var s = _.str.sprintf("%d:%02d:%02d", hh, mm, ss); + if (this.days) { + s = _.str.sprintf("%d day%s, %s", + this.days, + (this.days != 1 && this.days != -1) ? 's' : '', + s); + } + if (this.microseconds) { + s = _.str.sprintf("%s.%06d", s, this.microseconds); + } + return py.str.fromJSON(s); + }, + __eq__: function (other) { + if (!py.PY_isInstance(other, datetime.timedelta)) { + return py.False; + } + return (this.days === other.days + && this.seconds === other.seconds + && this.microseconds === other.microseconds) + ? py.True : py.False; + }, + __add__: function (other) { + if (!py.PY_isInstance(other, datetime.timedelta)) { + return py.NotImplemented; + } + return py.PY_call(datetime.timedelta, [ + py.float.fromJSON(this.days + other.days), + py.float.fromJSON(this.seconds + other.seconds), + py.float.fromJSON(this.microseconds + other.microseconds) + ]); + }, + __radd__: function (other) { return this.__add__(other); }, + __sub__: function (other) { + if (!py.PY_isInstance(other, datetime.timedelta)) { + return py.NotImplemented; + } + return py.PY_call(datetime.timedelta, [ + py.float.fromJSON(this.days - other.days), + py.float.fromJSON(this.seconds - other.seconds), + py.float.fromJSON(this.microseconds - other.microseconds) + ]); + }, + __rsub__: function (other) { + if (!py.PY_isInstance(other, datetime.timedelta)) { + return py.NotImplemented; + } + return this.__neg__().__add__(other); + }, + __neg__: function () { + return py.PY_call(datetime.timedelta, [ + py.float.fromJSON(-this.days), + py.float.fromJSON(-this.seconds), + py.float.fromJSON(-this.microseconds) + ]); + }, + __pos__: function () { return this; }, + __mul__: function (other) { + if (!py.PY_isInstance(other, py.float)) { + return py.NotImplemented; + } + var n = other.toJSON(); + return py.PY_call(datetime.timedelta, [ + py.float.fromJSON(this.days * n), + py.float.fromJSON(this.seconds * n), + py.float.fromJSON(this.microseconds * n) + ]); + }, + __rmul__: function (other) { return this.__mul__(other); }, + __div__: function (other) { + if (!py.PY_isInstance(other, py.float)) { + return py.NotImplemented; + } + var usec = ((this.days * 24 * 3600) + this.seconds) * 1000000 + + this.microseconds; + return py.PY_call( + datetime.timedelta, [ + zero, zero, py.float.fromJSON(usec / other.toJSON())]); + }, + __floordiv__: function (other) { return this.__div__(other); }, + total_seconds: function () { + return py.float.fromJSON( + this.days * 86400 + + this.seconds + + this.microseconds / 1000000) + }, + __nonzero__: function () { + return (!!this.days || !!this.seconds || !!this.microseconds) + ? py.True + : py.False; + } + }); + datetime.datetime = py.type('datetime', null, { + __init__: function () { + var zero = py.float.fromJSON(0); + var args = py.PY_parseArgs(arguments, [ + 'year', 'month', 'day', + ['hour', zero], ['minute', zero], ['second', zero], + ['microsecond', zero], ['tzinfo', py.None] + ]); + for(var key in args) { + if (!args.hasOwnProperty(key)) { continue; } + this[key] = asJS(args[key]); + } + }, + strftime: function () { + var self = this; + var args = py.PY_parseArgs(arguments, 'format'); + return py.str.fromJSON(args.format.toJSON() + .replace(/%([A-Za-z])/g, function (m, c) { + switch (c) { + case 'Y': return self.year; + case 'm': return _.str.sprintf('%02d', self.month); + case 'd': return _.str.sprintf('%02d', self.day); + case 'H': return _.str.sprintf('%02d', self.hour); + case 'M': return _.str.sprintf('%02d', self.minute); + case 'S': return _.str.sprintf('%02d', self.second); + } + throw new Error('ValueError: No known conversion for ' + m); + })); + }, + now: py.classmethod.fromJSON(function () { + var d = new Date(); + return py.PY_call(datetime.datetime, + [d.getFullYear(), d.getMonth() + 1, d.getDate(), + d.getHours(), d.getMinutes(), d.getSeconds(), + d.getMilliseconds() * 1000]); + }), + today: py.classmethod.fromJSON(function () { + var d = new Date(); + return py.PY_call(datetime.datetime, + [d.getFullYear(), d.getMonth() + 1, d.getDate()]); + }), + combine: py.classmethod.fromJSON(function () { + var args = py.PY_parseArgs(arguments, 'date time'); + return py.PY_call(datetime.datetime, [ + py.PY_getAttr(args.date, 'year'), + py.PY_getAttr(args.date, 'month'), + py.PY_getAttr(args.date, 'day'), + py.PY_getAttr(args.time, 'hour'), + py.PY_getAttr(args.time, 'minute'), + py.PY_getAttr(args.time, 'second') + ]); + }) + }); + datetime.date = py.type('date', null, { + __init__: function () { + var args = py.PY_parseArgs(arguments, 'year month day'); + this.year = asJS(args.year); + this.month = asJS(args.month); + this.day = asJS(args.day); + }, + strftime: function () { + var self = this; + var args = py.PY_parseArgs(arguments, 'format'); + return py.str.fromJSON(args.format.toJSON() + .replace(/%([A-Za-z])/g, function (m, c) { + switch (c) { + case 'Y': return self.year; + case 'm': return _.str.sprintf('%02d', self.month); + case 'd': return _.str.sprintf('%02d', self.day); + } + throw new Error('ValueError: No known conversion for ' + m); + })); + }, + today: py.classmethod.fromJSON(function () { + var d = new Date(); + return py.PY_call( + datetime.date, [d.getFullYear(), d.getMonth() + 1, d.getDate()]); + }), + __eq__: function (other) { + return (this.year === other.year + && this.month === other.month + && this.day === other.day) + ? py.True : py.False; + }, + __add__: function (other) { + if (!py.PY_isInstance(other, datetime.timedelta)) { + return py.NotImplemented; + } + var s = tmxxx(this.year, this.month, this.day + other.days); + return datetime.date.fromJSON(s.year, s.month, s.day); + }, + __radd__: function (other) { return this.__add__(other); }, + __sub__: function (other) { + if (py.PY_isInstance(other, datetime.timedelta)) { + return this.__add__(other.__neg__()); + } + if (py.PY_isInstance(other, datetime.date)) { + // FIXME: getattr and sub API methods + return py.PY_call(datetime.timedelta, [ + py.PY_subtract( + py.PY_call(py.PY_getAttr(this, 'toordinal')), + py.PY_call(py.PY_getAttr(other, 'toordinal'))) + ]); + } + return py.NotImplemented; + }, + toordinal: function () { + return py.float.fromJSON(ymd2ord(this.year, this.month, this.day)); + }, + fromJSON: function (year, month, day) { + return py.PY_call(datetime.date, [year, month, day]) + } + }); + datetime.time = py.type('time', null, { + __init__: function () { + var zero = py.float.fromJSON(0); + var args = py.PY_parseArgs(arguments, [ + ['hour', zero], ['minute', zero], ['second', zero], ['microsecond', zero], + ['tzinfo', py.None] + ]); + + for(var k in args) { + if (!args.hasOwnProperty(k)) { continue; } + this[k] = asJS(args[k]); + } + } + }); + var time = py.PY_call(py.object); + time.strftime = py.PY_def.fromJSON(function () { + var args = py.PY_parseArgs(arguments, 'format'); + var dt_class = py.PY_getAttr(datetime, 'datetime'); + var d = py.PY_call(py.PY_getAttr(dt_class, 'now')); + return py.PY_call(py.PY_getAttr(d, 'strftime'), [args.format]); + }); + + var relativedelta = py.type('relativedelta', null, { + __init__: function () { + this.ops = py.PY_parseArgs(arguments, + '* year month day hour minute second microsecond ' + + 'years months weeks days hours minutes secondes microseconds ' + + 'weekday leakdays yearday nlyearday'); + }, + __add__: function (other) { + if (!py.PY_isInstance(other, datetime.date)) { + return py.NotImplemented; + } + // TODO: test this whole mess + var year = asJS(this.ops.year) || asJS(other.year); + if (asJS(this.ops.years)) { + year += asJS(this.ops.years); + } + + var month = asJS(this.ops.month) || asJS(other.month); + if (asJS(this.ops.months)) { + month += asJS(this.ops.months); + // FIXME: no divmod in JS? + while (month < 1) { + year -= 1; + month += 12; + } + while (month > 12) { + year += 1; + month -= 12; + } + } + + var lastMonthDay = new Date(year, month, 0).getDate(); + var day = asJS(this.ops.day) || asJS(other.day); + if (day > lastMonthDay) { day = lastMonthDay; } + var days_offset = ((asJS(this.ops.weeks) || 0) * 7) + (asJS(this.ops.days) || 0); + if (days_offset) { + day = new Date(year, month-1, day + days_offset).getDate(); + } + // TODO: leapdays? + // TODO: hours, minutes, seconds? Not used in XML domains + // TODO: weekday? + // FIXME: use date.replace + return py.PY_call(datetime.date, [ + py.float.fromJSON(year), + py.float.fromJSON(month), + py.float.fromJSON(day) + ]); + }, + __radd__: function (other) { + return this.__add__(other); + }, + + __sub__: function (other) { + if (!py.PY_isInstance(other, datetime.date)) { + return py.NotImplemented; + } + // TODO: test this whole mess + var year = asJS(this.ops.year) || asJS(other.year); + if (asJS(this.ops.years)) { + year -= asJS(this.ops.years); + } + + var month = asJS(this.ops.month) || asJS(other.month); + if (asJS(this.ops.months)) { + month -= asJS(this.ops.months); + // FIXME: no divmod in JS? + while (month < 1) { + year -= 1; + month += 12; + } + while (month > 12) { + year += 1; + month -= 12; + } + } + + var lastMonthDay = new Date(year, month, 0).getDate(); + var day = asJS(this.ops.day) || asJS(other.day); + if (day > lastMonthDay) { day = lastMonthDay; } + var days_offset = ((asJS(this.ops.weeks) || 0) * 7) + (asJS(this.ops.days) || 0); + if (days_offset) { + day = new Date(year, month-1, day - days_offset).getDate(); + } + // TODO: leapdays? + // TODO: hours, minutes, seconds? Not used in XML domains + // TODO: weekday? + return py.PY_call(datetime.date, [ + py.float.fromJSON(year), + py.float.fromJSON(month), + py.float.fromJSON(day) + ]); + }, + __rsub__: function (other) { + return this.__sub__(other); + } + }); + + var eval_contexts = function (contexts, evaluation_context) { + evaluation_context = evaluation_context || {}; + return _(contexts).reduce(function (result_context, ctx) { + // __eval_context evaluations can lead to some of `contexts`'s + // values being null, skip them as well as empty contexts + if (_.isEmpty(ctx)) { return result_context; } + if (_.isString(ctx)) { + // wrap raw strings in context + ctx = { __ref: 'context', __debug: ctx }; + } + var evaluated = ctx; + switch(ctx.__ref) { + case 'context': + evaluation_context.context = py.dict.fromJSON(evaluation_context); + evaluated = py.eval(ctx.__debug, evaluation_context); + break; + case 'compound_context': + var eval_context = eval_contexts([ctx.__eval_context]); + evaluated = eval_contexts( + ctx.__contexts, _.extend({}, evaluation_context, eval_context)); + break; + } + // add newly evaluated context to evaluation context for following + // siblings + _.extend(evaluation_context, evaluated); + return _.extend(result_context, evaluated); + }, _.extend({}, instance.session.user_context)); + }; + var eval_domains = function (domains, evaluation_context) { + var result_domain = []; + _(domains).each(function (domain) { + if (_.isString(domain)) { + // wrap raw strings in domain + domain = { __ref: 'domain', __debug: domain }; + } + switch(domain.__ref) { + case 'domain': + evaluation_context.context = py.dict.fromJSON(evaluation_context); + result_domain.push.apply( + result_domain, py.eval(domain.__debug, evaluation_context)); + break; + case 'compound_domain': + var eval_context = eval_contexts([domain.__eval_context]); + result_domain.push.apply( + result_domain, eval_domains( + domain.__domains, _.extend( + {}, evaluation_context, eval_context))); + break; + default: + result_domain.push.apply(result_domain, domain); + } + }); + return result_domain; + }; + var eval_groupbys = function (contexts, evaluation_context) { + var result_group = []; + _(contexts).each(function (ctx) { + if (_.isString(ctx)) { + // wrap raw strings in context + ctx = { __ref: 'context', __debug: ctx }; + } + var group; + var evaluated = ctx; + switch(ctx.__ref) { + case 'context': + evaluation_context.context = py.dict.fromJSON(evaluation_context); + evaluated = py.eval(ctx.__debug, evaluation_context); + break; + case 'compound_context': + var eval_context = eval_contexts([ctx.__eval_context]); + evaluated = eval_contexts( + ctx.__contexts, _.extend({}, evaluation_context, eval_context)); + break; + } + group = evaluated.group_by; + if (!group) { return; } + if (typeof group === 'string') { + result_group.push(group); + } else if (group instanceof Array) { + result_group.push.apply(result_group, group); + } else { + throw new Error('Got invalid groupby {{' + + JSON.stringify(group) + '}}'); + } + _.extend(evaluation_context, evaluated); + }); + return result_group; + }; + + instance.web.pyeval.context = function () { + return { + uid: py.float.fromJSON(instance.session.uid), + datetime: datetime, + time: time, + relativedelta: relativedelta, + current_date: py.PY_call( + time.strftime, [py.str.fromJSON('%Y-%m-%d')]), + }; + }; + + /** + * @param {String} type "domains", "contexts" or "groupbys" + * @param {Array} object domains or contexts to evaluate + * @param {Object} [context] evaluation context + */ + instance.web.pyeval.eval = function (type, object, context) { + context = _.extend(instance.web.pyeval.context(), context || {}); + context['context'] = py.dict.fromJSON(context); + + //noinspection FallthroughInSwitchStatementJS + switch(type) { + case 'context': object = [object]; + case 'contexts': return eval_contexts(object, context); + case 'domain': object = [object]; + case 'domains': return eval_domains(object, context); + case 'groupbys': return eval_groupbys(object, context); + } + throw new Error("Unknow evaluation type " + type) + }; + + var eval_arg = function (arg) { + if (typeof arg !== 'object' || !arg.__ref) { return arg; } + switch(arg.__ref) { + case 'domain': case 'compound_domain': + return instance.web.pyeval.eval('domains', [arg]); + case 'context': case 'compound_context': + return instance.web.pyeval.eval('contexts', [arg]); + default: + throw new Error(instance.web._t("Unknown nonliteral type " + arg.__ref)); + } + }; + /** + * If args or kwargs are unevaluated contexts or domains (compound or not), + * evaluated them in-place. + * + * Potentially mutates both parameters. + * + * @param args + * @param kwargs + */ + instance.web.pyeval.ensure_evaluated = function (args, kwargs) { + for (var i=0; i<args.length; ++i) { + args[i] = eval_arg(args[i]); + } + for (var k in kwargs) { + if (!kwargs.hasOwnProperty(k)) { continue; } + kwargs[k] = eval_arg(kwargs[k]); + } + }; + instance.web.pyeval.eval_domains_and_contexts = function (source) { + return new $.Deferred(function (d) {setTimeout(function () { + try { + var contexts = ([instance.session.user_context] || []).concat(source.contexts); + // see Session.eval_context in Python + d.resolve({ + context: instance.web.pyeval.eval('contexts', contexts), + domain: instance.web.pyeval.eval('domains', source.domains), + group_by: instance.web.pyeval.eval('groupbys', source.group_by_seq || []) + }); + } catch (e) { + d.resolve({ error: { + code: 400, + message: instance.web._t("Evaluation Error"), + data: { + type: 'local_exception', + debug: _.str.sprintf( + instance.web._t("Local evaluation failure\n%s\n\n%s"), + e.message, JSON.stringify(source)) + } + }}); + } + }, 0); }); + } +}; |