Manage product attribute

issue4229
review13591002

src/common.js

@@ -64,6 +64,28 @@
         return result;
     };
 
+    // Cartesian product
+    Sao.common.product = function(array, repeat) {
+        repeat = repeat || 1;
+        var pools = [];
+        var i = 0;
+        while (i < repeat) {
+            pools = pools.concat(array);
+            i++;
+        }
+        var result = [[]];
+        pools.forEach(function(pool) {
+            var tmp = [];
+            result.forEach(function(x) {
+                pool.forEach(function(y) {
+                    tmp.push(x.concat([y]));
+                });
+            });
+            result = tmp;
+        });
+        return result;
+    };
+
     Sao.common.selection = function(title, values, alwaysask) {
         if (alwaysask === undefined) {
             alwaysask = false;

src/model.js

@@ -636,7 +636,10 @@
                     // TODO
                     return values;
                 };
-                prm = prm.pipe(force_parent).done(this.set_default.bind(this));
+                prm = prm.pipe(force_parent).then(function(values) {
+                    this.set_default(values);
+                    return values;
+                }.bind(this));
             } else {
                 prm = jQuery.when();
             }

src/screen.js

@@ -725,7 +725,7 @@
                      this.current_view.view_type == 'graph')) {
                 prm = this.switch_view('form');
             }
-            prm.done(function() {
+            return prm.then(function() {
                 var group;
                 if (this.current_record) {
                     group = this.current_record.group;
@@ -737,6 +737,7 @@
                 this.set_current_record(record);
                 this.display();
                 // TODO set_cursor
+                return record;
             }.bind(this));
         },
         new_model_position: function() {

src/view.js

@@ -2848,26 +2848,104 @@
                 return;
             }
             this.validate().done(function() {
-                var context = jQuery.extend({},
-                        this.field().get_context(this.record()));
-                // TODO sequence
-                if (this.screen.current_view.type == 'form' ||
-                        this.screen.current_view.editable) {
-                    this.screen.new_();
-                    this.screen.current_view.el.prop('disabled', false);
+                if (this.attributes.product) {
+                    this.new_product();
                 } else {
-                    var record = this.record();
-                    var field_size = record.expr_eval(
-                        this.attributes.size) || -1;
-                    field_size -= this.field().get_eval(record);
-                    var win = new Sao.Window.Form(this.screen, function() {}, {
-                        new_: true,
-                        many: field_size,
-                        context: context
-                    });
+                    this.new_single();
                 }
             }.bind(this));
         },
+        new_single: function() {
+            var context = jQuery.extend({},
+                    this.field().get_context(this.record()));
+            // TODO sequence
+            if (this.screen.current_view.type == 'form' ||
+                    this.screen.current_view.editable) {
+                this.screen.new_();
+                this.screen.current_view.el.prop('disabled', false);
+            } else {
+                var record = this.record();
+                var field_size = record.expr_eval(
+                    this.attributes.size) || -1;
+                field_size -= this.field().get_eval(record);
+                var win = new Sao.Window.Form(this.screen, function() {}, {
+                    new_: true,
+                    many: field_size,
+                    context: context
+                });
+            }
+        },
+        new_product: function() {
+            var fields = this.attributes.product.split(',');
+            var product = {};
+            var screen = this.screen;
+
+            screen.new_(false).then(function(first) {
+                first.default_get().then(function(default_) {
+                    first.set_default(default_);
+
+                    var search_set = function() {
+                        if (jQuery.isEmptyObject(fields)) {
+                            return make_product();
+                        }
+                        var field = screen.model.fields[fields.pop()];
+                        var relation = field.description.relation;
+                        if (!relation) {
+                            search_set();
+                        }
+
+                        var domain = field.get_domain(first);
+                        var context = field.get_context(first);
+
+                        var callback = function(result) {
+                            if (!jQuery.isEmptyObject(result)) {
+                                product[field.name] = result;
+                            }
+                            search_set();
+                        };
+                        var win_search = new Sao.Window.Search(relation,
+                                callback, {
+                                    sel_multi: true,
+                                    context: context,
+                                    domain: domain,
+                                    search_filter: ''
+                        });
+                    };
+
+                    var make_product = function() {
+                        if (jQuery.isEmptyObject(product)) {
+                            screen.group.remove(first, true);
+                            return;
+                        }
+
+                        var fields = Object.keys(product);
+                        var values = fields.map(function(field) {
+                            return product[field];
+                        });
+                        Sao.common.product(values).forEach(function(values) {
+                            var set_default = function(record) {
+                                var default_value = jQuery.extend({}, default_);
+                                fields.forEach(function(field, i) {
+                                    default_value[field] = values[i][0];
+                                    default_value[field + '.rec_name'] = values[i][1];
+                                });
+                                record.set_default(default_value);
+                            };
+
+                            var record;
+                            if (first) {
+                                set_default(first);
+                                first = null;
+                            } else {
+                                screen.new_(false).then(set_default);
+                            }
+                        });
+                    };
+
+                    search_set();
+                });
+            });
+        },
         open: function(event_) {
             this.edit();
         },