[16.0][ADD] web_diagram_builder: build interactive dependency diagrams from any many2one field

web_diagram/__init__.py

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+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
+from odoo import api, SUPERUSER_ID
+from . import controllers, models
+
+
+def post_init_hook(cr, registry):
+    env = api.Environment(cr, SUPERUSER_ID, {})
+    langs = env["res.lang"].search([("active", "=", True), ("code", "!=", "en_US")]).mapped("code")
+    if langs:
+        module = env["ir.module.module"].search([("name", "=", "web_diagram")])
+        module._update_translations(filter_lang=langs)

web_diagram/__manifest__.py

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+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
+{
+    'name': 'Odoo Web Diagram',
+    'category': 'Hidden',
+    'description': """
+Openerp Web Diagram view.
+=========================
+
+""",
+    'version': "16.0.1.0.0",
+    'depends': ['web'],
+    'post_init_hook': 'post_init_hook',
+    'data': [
+        'security/ir.model.access.csv',
+        'views/diagram_nav_help_views.xml',
+    ],
+    'assets': {
+        'web.assets_backend': [
+            'web_diagram/static/lib/js/cytoscape.min.js',
+            'web_diagram/static/lib/js/dagre.min.js',
+            'web_diagram/static/lib/js/cytoscape-dagre.min.js',
+            'web_diagram/static/src/scss/diagram_view.scss',
+            'web_diagram/static/src/js/diagram_model.js',
+            'web_diagram/static/src/js/diagram_controller.js',
+            'web_diagram/static/src/js/diagram_renderer.js',
+            'web_diagram/static/src/js/diagram_view.js',
+            'web_diagram/static/src/xml/base_diagram.xml',
+        ],
+        'web.qunit_suite_tests': [
+            'web_diagram/static/tests/diagram_tests.js',
+        ],
+    },
+    'auto_install': True,
+    'license': 'LGPL-3',
+    'test': ['tests/test_ir_ui_view.py'],
+}

web_diagram/controllers/__init__.py

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+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
+from . import main

web_diagram/controllers/main.py

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+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
+from collections import deque
+
+import odoo.http as http
+
+from odoo.tools.safe_eval import safe_eval
+
+# Spacing between nodes
+NODE_W = 150   # horizontal gap between nodes
+NODE_H = 110   # vertical gap between levels
+MAX_COLS = 8   # max nodes per row before wrapping within a level
+
+
+def _parse_key_value_spec(spec_str):
+    """Parse a semicolon-separated list of 'key:value' pairs into a dict.
+    Malformed pairs (missing colon) are silently skipped.
+    """
+    result = {}
+    for item in (spec_str or '').split(';'):
+        if ':' in item:
+            key, value = item.split(':', 1)
+            result[key] = value
+    return result
+
+
+def _tree_layout(nodes, transitions):
+    """Compact top-down tree layout.
+
+    - Parents appear above their children.
+    - Siblings of the same parent are grouped together horizontally.
+    - Each depth level is capped at MAX_COLS columns; extra nodes wrap to
+      a sub-row within the same level (vertical scroll only, no wide canvas).
+    - Isolated nodes (no edges) are placed at the very bottom.
+    """
+    # Build children map and track which nodes have a parent
+    children = {}
+    has_parent = set()
+
+    for _tr_id, (src_id, dst_id) in transitions.items():
+        src_str = str(src_id)
+        dst_str = str(dst_id)
+        children.setdefault(src_str, [])
+        if dst_str not in children[src_str]:
+            children[src_str].append(dst_str)
+        has_parent.add(dst_str)
+
+    all_ids = set(nodes.keys())
+    roots = [nid for nid in all_ids if nid not in has_parent]
+
+    # BFS to build depth and BFS order (siblings grouped by parent)
+    depth = {}
+    visited = set()
+    queue = deque()
+    for root in roots:
+        depth[root] = 0
+        queue.append(root)
+        visited.add(root)
+
+    bfs_order = []
+    while queue:
+        nid = queue.popleft()
+        bfs_order.append(nid)
+        for child in children.get(nid, []):
+            if child not in visited:
+                visited.add(child)
+                depth[child] = depth[nid] + 1
+                queue.append(child)
+
+    # Group nodes by depth level, preserving BFS order
+    # (so siblings of the same parent are consecutive)
+    levels = {}
+    for nid in bfs_order:
+        d = depth[nid]
+        levels.setdefault(d, [])
+        levels[d].append(nid)
+
+    # Assign positions level by level
+    current_y = 0
+    for d in sorted(levels.keys()):
+        level_nodes = levels[d]
+        n_rows = max(1, (len(level_nodes) + MAX_COLS - 1) // MAX_COLS)
+
+        for i, nid in enumerate(level_nodes):
+            col = i % MAX_COLS
+            wrap_row = i // MAX_COLS
+            nodes[nid]['x'] = col * NODE_W
+            nodes[nid]['y'] = current_y + wrap_row * NODE_H
+
+        # Advance y by: one main level gap + extra rows within this level
+        current_y += NODE_H * n_rows
+
+    # Place isolated nodes (not reachable from any root) at the bottom
+    unplaced = [nid for nid in all_ids if nid not in visited]
+    for i, nid in enumerate(unplaced):
+        nodes[nid]['x'] = (i % MAX_COLS) * NODE_W
+        nodes[nid]['y'] = current_y + NODE_H
+
+    return nodes
+
+
+class DiagramView(http.Controller):
+
+    @http.route('/web_diagram/diagram/get_diagram_info', type='json', auth='user')
+    def get_diagram_info(self, id, model, node, connector,
+                         src_node, des_node, label, **kw):
+
+        visible_node_fields = kw.get('visible_node_fields', [])
+        invisible_node_fields = kw.get('invisible_node_fields', [])
+        node_fields_string = kw.get('node_fields_string', [])
+        connector_fields = kw.get('connector_fields', [])
+        connector_fields_string = kw.get('connector_fields_string', [])
+
+        bgcolors = _parse_key_value_spec(kw.get('bgcolor', ''))
+        shapes = _parse_key_value_spec(kw.get('shape', ''))
+
+        ir_view = http.request.env['ir.ui.view']
+        graphs = ir_view.graph_get(int(id), model, node, connector, src_node,
+                                   des_node, label, (NODE_W, NODE_H))
+        nodes = graphs['nodes']
+        transitions = graphs['transitions']
+        isolate_nodes = {
+            blnk_node['id']: blnk_node
+            for blnk_node in graphs['blank_nodes']
+        }
+        y = [t['y'] for t in nodes.values() if t['x'] == 20 and t['y']]
+        y_max = (y and max(y)) or 120
+
+        connectors = {}
+        list_tr = list(transitions.keys())
+
+        for tr in transitions:
+            connectors.setdefault(tr, {
+                'id': int(tr),
+                's_id': transitions[tr][0],
+                'd_id': transitions[tr][1]
+            })
+
+        connector_model = http.request.env[connector]
+        data_connectors = connector_model.search([('id', 'in', list_tr)]).read(connector_fields)
+
+        for tr in data_connectors:
+            transition_id = str(tr['id'])
+            label = graphs['label'][transition_id][1]
+            t = connectors[transition_id]
+            t.update(
+                source=tr[src_node][1],
+                destination=tr[des_node][1],
+                options={},
+                signal=label
+            )
+
+            for i, fld in enumerate(connector_fields):
+                t['options'][connector_fields_string[i]] = tr[fld]
+
+        fields = http.request.env['ir.model.fields']
+        field = fields.search([('model', '=', model), ('relation', '=', node)], limit=1)
+        node_act = http.request.env[node]
+        if field and field.relation_field:
+            search_acts = node_act.search([(field.relation_field, '=', id)])
+        else:
+            search_acts = node_act.browse()
+        data_acts = search_acts.read(invisible_node_fields + visible_node_fields)
+
+        for act in data_acts:
+            act_id_str = str(act['id'])
+            n = nodes.get(act_id_str)
+            if not n:
+                n = isolate_nodes.get(act['id'], {})
+                y_max += NODE_H
+                n.update(x=20, y=y_max)
+                nodes[act_id_str] = n
+
+            n.update(id=act['id'], color='white', options={})
+
+            for color, expr in bgcolors.items():
+                if safe_eval(expr, act):
+                    n['color'] = color
+
+            for shape, expr in shapes.items():
+                if safe_eval(expr, act):
+                    n['shape'] = shape
+
+            for i, fld in enumerate(visible_node_fields):
+                n['options'][node_fields_string[i]] = act[fld]
+
+        # Apply compact hierarchical layout
+        nodes = _tree_layout(nodes, transitions)
+
+        name = http.request.env[model].browse(id).display_name
+        return dict(nodes=nodes,
+                    conn=connectors,
+                    display_name=name,
+                    parent_field=graphs['node_parent_field'])

web_diagram/i18n/af.po

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+# Translation of Odoo Server.
+# This file contains the translation of the following modules:
+# * web_diagram
+#
+# Translators:
+msgid ""
+msgstr ""
+"Project-Id-Version: Odoo 9.0\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2016-08-18 14:08+0000\n"
+"PO-Revision-Date: 2015-08-25 10:26+0000\n"
+"Last-Translator: <>\n"
+"Language-Team: Afrikaans (http://www.transifex.com/odoo/odoo-9/language/"
+"af/)\n"
+"Language: af\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: \n"
+"Plural-Forms: nplurals=2; plural=(n != 1);\n"
+
+#. module: web_diagram
+#. openerp-web
+#: code:addons/web_diagram/static/src/js/diagram.js:249
+#: code:addons/web_diagram/static/src/js/diagram.js:277
+#, python-format
+msgid "Activity"
+msgstr "Aktiwiteit"
+
+#. module: web_diagram
+#. openerp-web
+#: code:addons/web_diagram/static/src/js/diagram.js:282
+#: code:addons/web_diagram/static/src/js/diagram.js:326
+#, python-format
+msgid "Create:"
+msgstr ""
+
+#. module: web_diagram
+#. openerp-web
+#: code:addons/web_diagram/static/src/js/diagram.js:220
+#, python-format
+msgid ""
+"Deleting this node cannot be undone.\n"
+"It will also delete all connected transitions.\n"
+"\n"
+"Are you sure ?"
+msgstr ""
+
+#. module: web_diagram
+#. openerp-web
+#: code:addons/web_diagram/static/src/js/diagram.js:238
+#, python-format
+msgid ""
+"Deleting this transition cannot be undone.\n"
+"\n"
+"Are you sure ?"
+msgstr ""
+
+#. module: web_diagram
+#. openerp-web
+#: code:addons/web_diagram/static/src/js/diagram.js:19
+#, python-format
+msgid "Diagram"
+msgstr ""
+
+#. module: web_diagram
+#. openerp-web
+#: code:addons/web_diagram/static/src/js/diagram.js:124
+#, python-format
+msgid "New"
+msgstr "Nuwe"
+
+#. module: web_diagram
+#. openerp-web
+#: code:addons/web_diagram/static/src/xml/base_diagram.xml:5
+#, python-format
+msgid "New Node"
+msgstr ""
+
+#. module: web_diagram
+#. openerp-web
+#: code:addons/web_diagram/static/src/js/diagram.js:254
+#: code:addons/web_diagram/static/src/js/diagram.js:310
+#, python-format
+msgid "Open: "
+msgstr ""
+
+#. module: web_diagram
+#. openerp-web
+#: code:addons/web_diagram/static/src/js/diagram.js:305
+#: code:addons/web_diagram/static/src/js/diagram.js:321
+#, python-format
+msgid "Transition"
+msgstr ""