author | Sylvain Thénault <sylvain.thenault@logilab.fr> |
Mon, 25 Jan 2010 19:16:35 +0100 | |
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"""workflow definition and history related entities |
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:organization: Logilab |
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update copyright: welcome 2010
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:copyright: 2001-2010 LOGILAB S.A. (Paris, FRANCE), license is LGPL v2. |
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:contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr |
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:license: GNU Lesser General Public License, v2.1 - http://www.gnu.org/licenses |
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""" |
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__docformat__ = "restructuredtext en" |
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from warnings import warn |
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from logilab.common.decorators import cached, clear_cache |
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from logilab.common.deprecation import deprecated |
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from logilab.common.compat import any |
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from cubicweb.entities import AnyEntity, fetch_config |
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from cubicweb.interfaces import IWorkflowable |
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from cubicweb.mixins import MI_REL_TRIGGERS |
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class WorkflowException(Exception): pass |
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class Workflow(AnyEntity): |
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__regid__ = 'Workflow' |
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@property |
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def initial(self): |
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"""return the initial state for this workflow""" |
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return self.initial_state and self.initial_state[0] or None |
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def is_default_workflow_of(self, etype): |
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"""return True if this workflow is the default workflow for the given |
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entity type |
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""" |
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return any(et for et in self.reverse_default_workflow |
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if et.name == etype) |
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# XXX define parent() instead? what if workflow of multiple types? |
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def after_deletion_path(self): |
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"""return (path, parameters) which should be used as redirect |
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information when this entity is being deleted |
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""" |
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if self.workflow_of: |
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return self.workflow_of[0].rest_path(), {'vid': 'workflow'} |
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return super(Workflow, self).after_deletion_path() |
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def iter_workflows(self, _done=None): |
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"""return an iterator on actual workflows, eg this workflow and its |
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subworkflows |
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""" |
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# infinite loop safety belt |
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if _done is None: |
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_done = set() |
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yield self |
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_done.add(self.eid) |
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for tr in self._cw.execute('Any T WHERE T is WorkflowTransition, ' |
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'T transition_of WF, WF eid %(wf)s', |
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{'wf': self.eid}).entities(): |
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if tr.subwf.eid in _done: |
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continue |
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for subwf in tr.subwf.iter_workflows(_done): |
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yield subwf |
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# state / transitions accessors ############################################ |
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def state_by_name(self, statename): |
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rset = self._cw.execute('Any S, SN WHERE S name SN, S name %(n)s, ' |
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'S state_of WF, WF eid %(wf)s', |
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{'n': statename, 'wf': self.eid}, 'wf') |
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if rset: |
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return rset.get_entity(0, 0) |
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return None |
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def state_by_eid(self, eid): |
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rset = self._cw.execute('Any S, SN WHERE S name SN, S eid %(s)s, ' |
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'S state_of WF, WF eid %(wf)s', |
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{'s': eid, 'wf': self.eid}, ('wf', 's')) |
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if rset: |
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return rset.get_entity(0, 0) |
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return None |
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def transition_by_name(self, trname): |
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rset = self._cw.execute('Any T, TN WHERE T name TN, T name %(n)s, ' |
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'T transition_of WF, WF eid %(wf)s', |
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{'n': trname, 'wf': self.eid}, 'wf') |
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if rset: |
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return rset.get_entity(0, 0) |
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return None |
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def transition_by_eid(self, eid): |
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rset = self._cw.execute('Any T, TN WHERE T name TN, T eid %(t)s, ' |
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'T transition_of WF, WF eid %(wf)s', |
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{'t': eid, 'wf': self.eid}, ('wf', 't')) |
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if rset: |
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return rset.get_entity(0, 0) |
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return None |
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# wf construction methods ################################################## |
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def add_state(self, name, initial=False, **kwargs): |
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"""add a state to this workflow""" |
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state = self._cw.create_entity('State', name=unicode(name), **kwargs) |
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self._cw.execute('SET S state_of WF WHERE S eid %(s)s, WF eid %(wf)s', |
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{'s': state.eid, 'wf': self.eid}, ('s', 'wf')) |
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if initial: |
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assert not self.initial, "Initial state already defined as %s" % self.initial |
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self._cw.execute('SET WF initial_state S ' |
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'WHERE S eid %(s)s, WF eid %(wf)s', |
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{'s': state.eid, 'wf': self.eid}, ('s', 'wf')) |
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return state |
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def _add_transition(self, trtype, name, fromstates, |
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112 |
requiredgroups=(), conditions=(), **kwargs): |
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113 |
tr = self._cw.create_entity(trtype, name=unicode(name), **kwargs) |
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114 |
self._cw.execute('SET T transition_of WF ' |
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115 |
'WHERE T eid %(t)s, WF eid %(wf)s', |
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116 |
{'t': tr.eid, 'wf': self.eid}, ('t', 'wf')) |
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117 |
assert fromstates, fromstates |
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118 |
if not isinstance(fromstates, (tuple, list)): |
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119 |
fromstates = (fromstates,) |
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120 |
for state in fromstates: |
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121 |
if hasattr(state, 'eid'): |
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122 |
state = state.eid |
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123 |
self._cw.execute('SET S allowed_transition T ' |
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124 |
'WHERE S eid %(s)s, T eid %(t)s', |
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125 |
{'s': state, 't': tr.eid}, ('s', 't')) |
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126 |
tr.set_transition_permissions(requiredgroups, conditions, reset=False) |
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127 |
return tr |
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128 |
|
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129 |
def add_transition(self, name, fromstates, tostate=None, |
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130 |
requiredgroups=(), conditions=(), **kwargs): |
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131 |
"""add a transition to this workflow from some state(s) to another""" |
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132 |
tr = self._add_transition('Transition', name, fromstates, |
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133 |
requiredgroups, conditions, **kwargs) |
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134 |
if tostate is not None: |
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135 |
if hasattr(tostate, 'eid'): |
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136 |
tostate = tostate.eid |
3629 | 137 |
self._cw.execute('SET T destination_state S ' |
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138 |
'WHERE S eid %(s)s, T eid %(t)s', |
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139 |
{'t': tr.eid, 's': tostate}, ('s', 't')) |
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140 |
return tr |
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141 |
|
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142 |
def add_wftransition(self, name, subworkflow, fromstates, exitpoints=(), |
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143 |
requiredgroups=(), conditions=(), **kwargs): |
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144 |
"""add a workflow transition to this workflow""" |
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145 |
tr = self._add_transition('WorkflowTransition', name, fromstates, |
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146 |
requiredgroups, conditions, **kwargs) |
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147 |
if hasattr(subworkflow, 'eid'): |
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148 |
subworkflow = subworkflow.eid |
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149 |
assert self._cw.execute('SET T subworkflow WF WHERE WF eid %(wf)s,T eid %(t)s', |
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150 |
{'t': tr.eid, 'wf': subworkflow}, ('wf', 't')) |
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151 |
for fromstate, tostate in exitpoints: |
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152 |
tr.add_exit_point(fromstate, tostate) |
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153 |
return tr |
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154 |
|
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155 |
def replace_state(self, todelstate, replacement): |
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156 |
"""migration convenience method""" |
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157 |
if not hasattr(todelstate, 'eid'): |
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158 |
todelstate = self.state_by_name(todelstate) |
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159 |
if not hasattr(replacement, 'eid'): |
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160 |
replacement = self.state_by_name(replacement) |
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161 |
execute = self._cw.unsafe_execute |
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162 |
execute('SET X in_state S WHERE S eid %(s)s', {'s': todelstate.eid}, 's') |
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163 |
execute('SET X from_state NS WHERE X to_state OS, OS eid %(os)s, NS eid %(ns)s', |
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|
164 |
{'os': todelstate.eid, 'ns': newstate.eid}, 's') |
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|
165 |
execute('SET X to_state NS WHERE X to_state OS, OS eid %(os)s, NS eid %(ns)s', |
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|
166 |
{'os': todelstate.eid, 'ns': newstate.eid}, 's') |
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|
167 |
todelstate.delete() |
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168 |
|
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169 |
|
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170 |
class BaseTransition(AnyEntity): |
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171 |
"""customized class for abstract transition |
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172 |
|
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173 |
provides a specific may_be_fired method to check if the relation may be |
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174 |
fired by the logged user |
0 | 175 |
""" |
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176 |
__regid__ = 'BaseTransition' |
0 | 177 |
fetch_attrs, fetch_order = fetch_config(['name']) |
1572 | 178 |
|
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179 |
def __init__(self, *args, **kwargs): |
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180 |
if self.__regid__ == 'BaseTransition': |
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181 |
raise WorkflowException('should not be instantiated') |
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182 |
super(BaseTransition, self).__init__(*args, **kwargs) |
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183 |
|
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184 |
@property |
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185 |
def workflow(self): |
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186 |
return self.transition_of[0] |
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187 |
|
2991 | 188 |
def has_input_state(self, state): |
189 |
if hasattr(state, 'eid'): |
|
190 |
state = state.eid |
|
191 |
return any(s for s in self.reverse_allowed_transition if s.eid == state) |
|
192 |
||
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193 |
def may_be_fired(self, eid): |
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194 |
"""return true if the logged user may fire this transition |
0 | 195 |
|
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196 |
`eid` is the eid of the object on which we may fire the transition |
0 | 197 |
""" |
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|
198 |
user = self._cw.user |
0 | 199 |
# check user is at least in one of the required groups if any |
200 |
groups = frozenset(g.name for g in self.require_group) |
|
201 |
if groups: |
|
202 |
matches = user.matching_groups(groups) |
|
203 |
if matches: |
|
204 |
return matches |
|
205 |
if 'owners' in groups and user.owns(eid): |
|
206 |
return True |
|
207 |
# check one of the rql expression conditions matches if any |
|
208 |
if self.condition: |
|
209 |
for rqlexpr in self.condition: |
|
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210 |
if rqlexpr.check_expression(self._cw, eid): |
0 | 211 |
return True |
212 |
if self.condition or groups: |
|
213 |
return False |
|
214 |
return True |
|
215 |
||
216 |
def after_deletion_path(self): |
|
217 |
"""return (path, parameters) which should be used as redirect |
|
218 |
information when this entity is being deleted |
|
219 |
""" |
|
220 |
if self.transition_of: |
|
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221 |
return self.transition_of[0].rest_path(), {} |
0 | 222 |
return super(Transition, self).after_deletion_path() |
223 |
||
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224 |
def set_transition_permissions(self, requiredgroups=(), conditions=(), |
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225 |
reset=True): |
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226 |
"""set or add (if `reset` is False) groups and conditions for this |
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227 |
transition |
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228 |
""" |
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229 |
if reset: |
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230 |
self._cw.execute('DELETE T require_group G WHERE T eid %(x)s', |
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231 |
{'x': self.eid}, 'x') |
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232 |
self._cw.execute('DELETE T condition R WHERE T eid %(x)s', |
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{'x': self.eid}, 'x') |
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for gname in requiredgroups: |
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rset = self._cw.execute('SET T require_group G ' |
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'WHERE T eid %(x)s, G name %(gn)s', |
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237 |
{'x': self.eid, 'gn': gname}, 'x') |
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assert rset, '%s is not a known group' % gname |
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239 |
if isinstance(conditions, basestring): |
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conditions = (conditions,) |
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for expr in conditions: |
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if isinstance(expr, basestring): |
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kwargs = {'expr': unicode(expr)} |
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else: |
245 |
assert isinstance(expr, dict) |
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kwargs = expr |
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kwargs['x'] = self.eid |
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248 |
kwargs.setdefault('mainvars', u'X') |
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self._cw.execute('INSERT RQLExpression X: X exprtype "ERQLExpression", ' |
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'X expression %(expr)s, X mainvars %(mainvars)s, ' |
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'T condition X WHERE T eid %(x)s',kwargs, 'x') |
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# XXX clear caches? |
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253 |
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254 |
|
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255 |
class Transition(BaseTransition): |
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"""customized class for Transition entities""" |
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__regid__ = 'Transition' |
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258 |
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def destination(self): |
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return self.destination_state[0] |
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261 |
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def parent(self): |
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return self.workflow |
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264 |
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265 |
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class WorkflowTransition(BaseTransition): |
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"""customized class for WorkflowTransition entities""" |
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__regid__ = 'WorkflowTransition' |
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270 |
@property |
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def subwf(self): |
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return self.subworkflow[0] |
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273 |
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274 |
def destination(self): |
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return self.subwf.initial |
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276 |
|
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def add_exit_point(self, fromstate, tostate): |
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if hasattr(fromstate, 'eid'): |
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fromstate = fromstate.eid |
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280 |
if tostate is None: |
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self._cw.execute('INSERT SubWorkflowExitPoint X: T subworkflow_exit X, ' |
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282 |
'X subworkflow_state FS WHERE T eid %(t)s, FS eid %(fs)s', |
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283 |
{'t': self.eid, 'fs': fromstate}, ('t', 'fs')) |
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284 |
else: |
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285 |
if hasattr(tostate, 'eid'): |
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286 |
tostate = tostate.eid |
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self._cw.execute('INSERT SubWorkflowExitPoint X: T subworkflow_exit X, ' |
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288 |
'X subworkflow_state FS, X destination_state TS ' |
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289 |
'WHERE T eid %(t)s, FS eid %(fs)s, TS eid %(ts)s', |
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{'t': self.eid, 'fs': fromstate, 'ts': tostate}, |
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291 |
('t', 'fs', 'ts')) |
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292 |
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293 |
def get_exit_point(self, entity, stateeid): |
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"""if state is an exit point, return its associated destination state""" |
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if hasattr(stateeid, 'eid'): |
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296 |
stateeid = stateeid.eid |
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297 |
try: |
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298 |
tostateeid = self.exit_points()[stateeid] |
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299 |
except KeyError: |
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300 |
return None |
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301 |
if tostateeid is None: |
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302 |
# go back to state from which we've entered the subworkflow |
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303 |
return entity.subworkflow_input_trinfo().previous_state |
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return self._cw.entity_from_eid(tostateeid) |
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305 |
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306 |
@cached |
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307 |
def exit_points(self): |
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308 |
result = {} |
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309 |
for ep in self.subworkflow_exit: |
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310 |
result[ep.subwf_state.eid] = ep.destination and ep.destination.eid |
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311 |
return result |
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312 |
|
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313 |
def clear_all_caches(self): |
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314 |
super(WorkflowableMixIn, self).clear_all_caches() |
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315 |
clear_cache(self, 'exit_points') |
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316 |
|
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317 |
|
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318 |
class SubWorkflowExitPoint(AnyEntity): |
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319 |
"""customized class for SubWorkflowExitPoint entities""" |
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__regid__ = 'SubWorkflowExitPoint' |
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321 |
|
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322 |
@property |
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323 |
def subwf_state(self): |
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324 |
return self.subworkflow_state[0] |
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325 |
|
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326 |
@property |
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327 |
def destination(self): |
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return self.destination_state and self.destination_state[0] or None |
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329 |
|
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def parent(self): |
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331 |
return self.reverse_subworkflow_exit[0] |
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332 |
|
1572 | 333 |
|
0 | 334 |
class State(AnyEntity): |
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"""customized class for State entities""" |
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__regid__ = 'State' |
0 | 337 |
fetch_attrs, fetch_order = fetch_config(['name']) |
338 |
rest_attr = 'eid' |
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|
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|
340 |
@property |
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|
341 |
def workflow(self): |
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342 |
# take care, may be missing in multi-sources configuration |
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|
343 |
return self.state_of and self.state_of[0] |
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|
344 |
|
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|
345 |
def parent(self): |
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|
346 |
return self.workflow |
0 | 347 |
|
1572 | 348 |
|
0 | 349 |
class TrInfo(AnyEntity): |
350 |
"""customized class for Transition information entities |
|
351 |
""" |
|
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|
352 |
__regid__ = 'TrInfo' |
0 | 353 |
fetch_attrs, fetch_order = fetch_config(['creation_date', 'comment'], |
354 |
pclass=None) # don't want modification_date |
|
355 |
@property |
|
356 |
def for_entity(self): |
|
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|
357 |
return self.wf_info_for[0] |
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358 |
|
0 | 359 |
@property |
360 |
def previous_state(self): |
|
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|
361 |
return self.from_state[0] |
1572 | 362 |
|
0 | 363 |
@property |
364 |
def new_state(self): |
|
365 |
return self.to_state[0] |
|
366 |
||
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|
367 |
@property |
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|
368 |
def transition(self): |
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|
369 |
return self.by_transition and self.by_transition[0] or None |
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|
370 |
|
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|
371 |
def parent(self): |
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|
372 |
return self.for_entity |
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|
373 |
|
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|
374 |
|
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|
375 |
class WorkflowableMixIn(object): |
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376 |
"""base mixin providing workflow helper methods for workflowable entities. |
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377 |
This mixin will be automatically set on class supporting the 'in_state' |
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|
378 |
relation (which implies supporting 'wf_info_for' as well) |
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|
379 |
""" |
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|
380 |
__implements__ = (IWorkflowable,) |
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|
381 |
|
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|
382 |
@property |
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|
383 |
def main_workflow(self): |
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|
384 |
"""return current workflow applied to this entity""" |
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|
385 |
if self.custom_workflow: |
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|
386 |
return self.custom_workflow[0] |
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|
387 |
return self.cwetype_workflow() |
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|
388 |
|
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|
389 |
@property |
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|
390 |
def current_workflow(self): |
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|
391 |
"""return current workflow applied to this entity""" |
2991 | 392 |
return self.current_state and self.current_state.workflow or self.main_workflow |
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changeset
|
393 |
|
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|
394 |
@property |
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|
395 |
def current_state(self): |
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|
396 |
"""return current state entity""" |
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|
397 |
return self.in_state and self.in_state[0] or None |
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|
398 |
|
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|
399 |
@property |
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|
400 |
def state(self): |
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|
401 |
"""return current state name""" |
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|
402 |
try: |
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|
403 |
return self.in_state[0].name |
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|
404 |
except IndexError: |
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|
405 |
self.warning('entity %s has no state', self) |
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|
406 |
return None |
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|
407 |
|
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|
408 |
@property |
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|
409 |
def printable_state(self): |
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|
410 |
"""return current state name translated to context's language""" |
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|
411 |
state = self.current_state |
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|
412 |
if state: |
3406
e343f37f7013
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parents:
3405
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changeset
|
413 |
return self._cw._(state.name) |
2920
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|
414 |
return u'' |
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changeset
|
415 |
|
2947
083593802120
[wf] new workflow_history property, nicer the reverse_wf_info_for...
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changeset
|
416 |
@property |
083593802120
[wf] new workflow_history property, nicer the reverse_wf_info_for...
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changeset
|
417 |
def workflow_history(self): |
083593802120
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|
418 |
"""return the workflow history for this entity (eg ordered list of |
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changeset
|
419 |
TrInfo entities) |
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changeset
|
420 |
""" |
083593802120
[wf] new workflow_history property, nicer the reverse_wf_info_for...
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changeset
|
421 |
return self.reverse_wf_info_for |
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changeset
|
422 |
|
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|
423 |
def latest_trinfo(self): |
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|
424 |
"""return the latest transition information for this entity""" |
3765
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changeset
|
425 |
try: |
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latst_trinfo : do not crash on absent wf history
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parents:
3757
diff
changeset
|
426 |
return self.reverse_wf_info_for[-1] |
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changeset
|
427 |
except IndexError: |
769dc0107f31
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changeset
|
428 |
return None |
2920
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changeset
|
429 |
|
2946
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[wf] refactor current_workflow by extracting cwetype_workflow method
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changeset
|
430 |
@cached |
957fd4b276e2
[wf] refactor current_workflow by extracting cwetype_workflow method
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changeset
|
431 |
def cwetype_workflow(self): |
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|
432 |
"""return the default workflow for entities of this type""" |
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changeset
|
433 |
# XXX CWEType method |
3674 | 434 |
wfrset = self._cw.execute('Any WF WHERE ET default_workflow WF, ' |
3675 | 435 |
'ET name %(et)s', {'et': self.__regid__}) |
3663
c74d8ec4cdb2
simpler implementation
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changeset
|
436 |
if wfrset: |
2946
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changeset
|
437 |
return wfrset.get_entity(0, 0) |
3675 | 438 |
self.warning("can't find any workflow for %s", self.__regid__) |
2946
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changeset
|
439 |
return None |
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changeset
|
440 |
|
3528
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support for automatic transition
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changeset
|
441 |
def possible_transitions(self, type='normal'): |
2920
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|
442 |
"""generates transition that MAY be fired for the given entity, |
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|
443 |
expected to be in this state |
3986
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changeset
|
444 |
used only by the UI |
2920
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|
445 |
""" |
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|
446 |
if self.current_state is None or self.current_workflow is None: |
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|
447 |
return |
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changeset
|
448 |
rset = self._cw.execute( |
3528
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changeset
|
449 |
'Any T,TT, TN WHERE S allowed_transition T, S eid %(x)s, ' |
77a69de16709
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changeset
|
450 |
'T type TT, T type %(type)s, ' |
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changeset
|
451 |
'T name TN, T transition_of WF, WF eid %(wfeid)s', |
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changeset
|
452 |
{'x': self.current_state.eid, 'type': type, |
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|
453 |
'wfeid': self.current_workflow.eid}, 'x') |
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changeset
|
454 |
for tr in rset.entities(): |
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|
455 |
if tr.may_be_fired(self.eid): |
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changeset
|
456 |
yield tr |
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changeset
|
457 |
|
2989
dfb3506647e4
[wf] refactor change_state/fire_transition to share more code, change_state can also take an optional tr argument
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2988
diff
changeset
|
458 |
def _add_trinfo(self, comment, commentformat, treid=None, tseid=None): |
2920
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changeset
|
459 |
kwargs = {} |
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changeset
|
460 |
if comment is not None: |
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parents:
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changeset
|
461 |
kwargs['comment'] = comment |
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diff
changeset
|
462 |
if commentformat is not None: |
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parents:
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diff
changeset
|
463 |
kwargs['comment_format'] = commentformat |
3687
859f7d741bfb
update for new create_entity implementation
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3663
diff
changeset
|
464 |
kwargs['wf_info_for'] = self |
2989
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[wf] refactor change_state/fire_transition to share more code, change_state can also take an optional tr argument
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
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diff
changeset
|
465 |
if treid is not None: |
4024
6a14cff373c3
more api update
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4023
diff
changeset
|
466 |
kwargs['by_transition'] = self._cw.entity_from_eid(treid) |
2989
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[wf] refactor change_state/fire_transition to share more code, change_state can also take an optional tr argument
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
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diff
changeset
|
467 |
if tseid is not None: |
4024
6a14cff373c3
more api update
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parents:
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diff
changeset
|
468 |
kwargs['to_state'] = self._cw.entity_from_eid(tseid) |
3720 | 469 |
return self._cw.create_entity('TrInfo', **kwargs) |
2920
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changeset
|
470 |
|
3528
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Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3038
diff
changeset
|
471 |
def fire_transition(self, tr, comment=None, commentformat=None): |
2920
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parents:
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changeset
|
472 |
"""change the entity's state by firing transition of the given name in |
64322aa83a1d
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parents:
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diff
changeset
|
473 |
entity's workflow |
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parents:
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diff
changeset
|
474 |
""" |
64322aa83a1d
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parents:
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changeset
|
475 |
assert self.current_workflow |
3528
77a69de16709
support for automatic transition
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3038
diff
changeset
|
476 |
if isinstance(tr, basestring): |
3628
440931181322
[wf engine] support for subwf exit point with no destination state: go back to state from which we entered into the subworkflow
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3621
diff
changeset
|
477 |
_tr = self.current_workflow.transition_by_name(tr) |
3629 | 478 |
assert _tr is not None, 'not a %s transition: %s' % ( |
479 |
self.__regid__, tr) |
|
3628
440931181322
[wf engine] support for subwf exit point with no destination state: go back to state from which we entered into the subworkflow
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
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diff
changeset
|
480 |
tr = _tr |
2989
dfb3506647e4
[wf] refactor change_state/fire_transition to share more code, change_state can also take an optional tr argument
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parents:
2988
diff
changeset
|
481 |
return self._add_trinfo(comment, commentformat, tr.eid) |
2920
64322aa83a1d
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parents:
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diff
changeset
|
482 |
|
2989
dfb3506647e4
[wf] refactor change_state/fire_transition to share more code, change_state can also take an optional tr argument
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2988
diff
changeset
|
483 |
def change_state(self, statename, comment=None, commentformat=None, tr=None): |
2980
292387ed37f3
[wf] allow state entity as argument to change_state
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parents:
2978
diff
changeset
|
484 |
"""change the entity's state to the given state (name or entity) in |
292387ed37f3
[wf] allow state entity as argument to change_state
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parents:
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diff
changeset
|
485 |
entity's workflow. This method should only by used by manager to fix an |
292387ed37f3
[wf] allow state entity as argument to change_state
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2978
diff
changeset
|
486 |
entity's state when their is no matching transition, otherwise |
292387ed37f3
[wf] allow state entity as argument to change_state
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2978
diff
changeset
|
487 |
fire_transition should be used. |
2920
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start a new workflow engine
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parents:
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diff
changeset
|
488 |
""" |
64322aa83a1d
start a new workflow engine
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parents:
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diff
changeset
|
489 |
assert self.current_workflow |
2980
292387ed37f3
[wf] allow state entity as argument to change_state
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parents:
2978
diff
changeset
|
490 |
if hasattr(statename, 'eid'): |
292387ed37f3
[wf] allow state entity as argument to change_state
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
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diff
changeset
|
491 |
stateeid = statename.eid |
2920
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parents:
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diff
changeset
|
492 |
else: |
2980
292387ed37f3
[wf] allow state entity as argument to change_state
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parents:
2978
diff
changeset
|
493 |
if not isinstance(statename, basestring): |
292387ed37f3
[wf] allow state entity as argument to change_state
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2978
diff
changeset
|
494 |
warn('give a state name') |
292387ed37f3
[wf] allow state entity as argument to change_state
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parents:
2978
diff
changeset
|
495 |
state = self.current_workflow.state_by_eid(statename) |
292387ed37f3
[wf] allow state entity as argument to change_state
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parents:
2978
diff
changeset
|
496 |
else: |
292387ed37f3
[wf] allow state entity as argument to change_state
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parents:
2978
diff
changeset
|
497 |
state = self.current_workflow.state_by_name(statename) |
292387ed37f3
[wf] allow state entity as argument to change_state
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parents:
2978
diff
changeset
|
498 |
if state is None: |
3451
6b46d73823f5
[api] work in progress, use __regid__, cw_*, etc.
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
3406
diff
changeset
|
499 |
raise WorkflowException('not a %s state: %s' % (self.__regid__, |
2989
dfb3506647e4
[wf] refactor change_state/fire_transition to share more code, change_state can also take an optional tr argument
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2988
diff
changeset
|
500 |
statename)) |
2980
292387ed37f3
[wf] allow state entity as argument to change_state
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2978
diff
changeset
|
501 |
stateeid = state.eid |
2920
64322aa83a1d
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parents:
2917
diff
changeset
|
502 |
# XXX try to find matching transition? |
2989
dfb3506647e4
[wf] refactor change_state/fire_transition to share more code, change_state can also take an optional tr argument
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2988
diff
changeset
|
503 |
return self._add_trinfo(comment, commentformat, tr and tr.eid, stateeid) |
2920
64322aa83a1d
start a new workflow engine
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2917
diff
changeset
|
504 |
|
3628
440931181322
[wf engine] support for subwf exit point with no destination state: go back to state from which we entered into the subworkflow
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3621
diff
changeset
|
505 |
def subworkflow_input_trinfo(self): |
440931181322
[wf engine] support for subwf exit point with no destination state: go back to state from which we entered into the subworkflow
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3621
diff
changeset
|
506 |
"""return the TrInfo which has be recorded when this entity went into |
440931181322
[wf engine] support for subwf exit point with no destination state: go back to state from which we entered into the subworkflow
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3621
diff
changeset
|
507 |
the current sub-workflow |
2990
f221ba8552ab
[wf] new method on WorkflowableMixIn to get the transition which had led to the current sub-workflow
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2989
diff
changeset
|
508 |
""" |
f221ba8552ab
[wf] new method on WorkflowableMixIn to get the transition which had led to the current sub-workflow
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2989
diff
changeset
|
509 |
if self.main_workflow.eid == self.current_workflow.eid: |
f221ba8552ab
[wf] new method on WorkflowableMixIn to get the transition which had led to the current sub-workflow
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2989
diff
changeset
|
510 |
return # doesn't make sense |
f221ba8552ab
[wf] new method on WorkflowableMixIn to get the transition which had led to the current sub-workflow
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2989
diff
changeset
|
511 |
subwfentries = [] |
3621
1ec4452aa36f
[wf] fix detection of transition where we've entered a subworkflow
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3609
diff
changeset
|
512 |
for trinfo in self.workflow_history: |
2990
f221ba8552ab
[wf] new method on WorkflowableMixIn to get the transition which had led to the current sub-workflow
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2989
diff
changeset
|
513 |
if (trinfo.transition and |
f221ba8552ab
[wf] new method on WorkflowableMixIn to get the transition which had led to the current sub-workflow
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2989
diff
changeset
|
514 |
trinfo.previous_state.workflow.eid != trinfo.new_state.workflow.eid): |
f221ba8552ab
[wf] new method on WorkflowableMixIn to get the transition which had led to the current sub-workflow
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2989
diff
changeset
|
515 |
# entering or leaving a subworkflow |
f221ba8552ab
[wf] new method on WorkflowableMixIn to get the transition which had led to the current sub-workflow
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2989
diff
changeset
|
516 |
if (subwfentries and |
3621
1ec4452aa36f
[wf] fix detection of transition where we've entered a subworkflow
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3609
diff
changeset
|
517 |
subwfentries[-1].new_state.workflow.eid == trinfo.previous_state.workflow.eid and |
1ec4452aa36f
[wf] fix detection of transition where we've entered a subworkflow
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3609
diff
changeset
|
518 |
subwfentries[-1].previous_state.workflow.eid == trinfo.new_state.workflow.eid): |
2990
f221ba8552ab
[wf] new method on WorkflowableMixIn to get the transition which had led to the current sub-workflow
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2989
diff
changeset
|
519 |
# leave |
f221ba8552ab
[wf] new method on WorkflowableMixIn to get the transition which had led to the current sub-workflow
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2989
diff
changeset
|
520 |
del subwfentries[-1] |
f221ba8552ab
[wf] new method on WorkflowableMixIn to get the transition which had led to the current sub-workflow
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2989
diff
changeset
|
521 |
else: |
f221ba8552ab
[wf] new method on WorkflowableMixIn to get the transition which had led to the current sub-workflow
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2989
diff
changeset
|
522 |
# enter |
f221ba8552ab
[wf] new method on WorkflowableMixIn to get the transition which had led to the current sub-workflow
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2989
diff
changeset
|
523 |
subwfentries.append(trinfo) |
f221ba8552ab
[wf] new method on WorkflowableMixIn to get the transition which had led to the current sub-workflow
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2989
diff
changeset
|
524 |
if not subwfentries: |
f221ba8552ab
[wf] new method on WorkflowableMixIn to get the transition which had led to the current sub-workflow
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2989
diff
changeset
|
525 |
return None |
3628
440931181322
[wf engine] support for subwf exit point with no destination state: go back to state from which we entered into the subworkflow
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3621
diff
changeset
|
526 |
return subwfentries[-1] |
440931181322
[wf engine] support for subwf exit point with no destination state: go back to state from which we entered into the subworkflow
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3621
diff
changeset
|
527 |
|
440931181322
[wf engine] support for subwf exit point with no destination state: go back to state from which we entered into the subworkflow
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3621
diff
changeset
|
528 |
def subworkflow_input_transition(self): |
440931181322
[wf engine] support for subwf exit point with no destination state: go back to state from which we entered into the subworkflow
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3621
diff
changeset
|
529 |
"""return the transition which has went through the current sub-workflow |
440931181322
[wf engine] support for subwf exit point with no destination state: go back to state from which we entered into the subworkflow
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3621
diff
changeset
|
530 |
""" |
440931181322
[wf engine] support for subwf exit point with no destination state: go back to state from which we entered into the subworkflow
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3621
diff
changeset
|
531 |
return getattr(self.subworkflow_input_trinfo(), 'transition', None) |
2948
d3cd8bd20ee5
override clear_all_caches to clear cwetype_workflow cache
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2947
diff
changeset
|
532 |
|
d3cd8bd20ee5
override clear_all_caches to clear cwetype_workflow cache
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2947
diff
changeset
|
533 |
def clear_all_caches(self): |
d3cd8bd20ee5
override clear_all_caches to clear cwetype_workflow cache
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2947
diff
changeset
|
534 |
super(WorkflowableMixIn, self).clear_all_caches() |
d3cd8bd20ee5
override clear_all_caches to clear cwetype_workflow cache
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2947
diff
changeset
|
535 |
clear_cache(self, 'cwetype_workflow') |
d3cd8bd20ee5
override clear_all_caches to clear cwetype_workflow cache
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2947
diff
changeset
|
536 |
|
3405
9d31c9cb8103
nicer deprecation warnings
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3377
diff
changeset
|
537 |
@deprecated('[3.5] get transition from current workflow and use its may_be_fired method') |
2920
64322aa83a1d
start a new workflow engine
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2917
diff
changeset
|
538 |
def can_pass_transition(self, trname): |
64322aa83a1d
start a new workflow engine
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2917
diff
changeset
|
539 |
"""return the Transition instance if the current user can fire the |
64322aa83a1d
start a new workflow engine
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2917
diff
changeset
|
540 |
transition with the given name, else None |
64322aa83a1d
start a new workflow engine
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2917
diff
changeset
|
541 |
""" |
64322aa83a1d
start a new workflow engine
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2917
diff
changeset
|
542 |
tr = self.current_workflow and self.current_workflow.transition_by_name(trname) |
64322aa83a1d
start a new workflow engine
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2917
diff
changeset
|
543 |
if tr and tr.may_be_fired(self.eid): |
64322aa83a1d
start a new workflow engine
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2917
diff
changeset
|
544 |
return tr |
64322aa83a1d
start a new workflow engine
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2917
diff
changeset
|
545 |
|
64322aa83a1d
start a new workflow engine
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2917
diff
changeset
|
546 |
@property |
3405
9d31c9cb8103
nicer deprecation warnings
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3377
diff
changeset
|
547 |
@deprecated('[3.5] use printable_state') |
2920
64322aa83a1d
start a new workflow engine
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2917
diff
changeset
|
548 |
def displayable_state(self): |
3406
e343f37f7013
use self._cw instead of self.req
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3405
diff
changeset
|
549 |
return self._cw._(self.state) |
2920
64322aa83a1d
start a new workflow engine
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2917
diff
changeset
|
550 |
|
64322aa83a1d
start a new workflow engine
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2917
diff
changeset
|
551 |
MI_REL_TRIGGERS[('in_state', 'subject')] = WorkflowableMixIn |