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(core) Formula autocomplete improvements for references and lookups
Summary: Makes the following improvements to formula autocomplete: - When a user types `$RefCol` (or part of it), also show `$RefCol.VisibleCol` (replace actual column names) in the autocomplete even before the `.` is typed, to help users understand the difference between a raw reference/record and its visible column. - When a user types a table name, show `.lookupOne` and `.lookupRecords` in the autocomplete, again even before the `.` is typed. - For `.lookupRecords(` and `.lookupOne(`, once the `(` is entered, suggest each column name as a keyword argument. - Also suggest lookup arguments involving compatible reference columns, especially 'reverse reference' lookups like `refcol=$id` which are very common and difficult for users. - To support these features, the Ace editor autocomplete needs some patching to fetch fresh autocomplete options after typing `.` or `(`. This also improves unrelated behaviour that wasn't great before when one column name is contained in another. See the first added browser test. Discussions: - https://grist.slack.com/archives/CDHABLZJT/p1659707068383179 - https://grist.quip.com/HoSmAlvFax0j#MbTADAH5kgG - https://grist.quip.com/HoSmAlvFax0j/Formula-Improvements#temp:C:MbT3649fe964a184e8dada9bbebb Test Plan: Added Python and nbrowser tests. Reviewers: paulfitz Reviewed By: paulfitz Differential Revision: https://phab.getgrist.com/D3580
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@ -27,6 +27,40 @@ export function setupAceEditorCompletions(editor: ace.Editor, options: ICompleti
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completer.autoSelect = false;
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(editor as any).completer = completer;
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// Patch updateCompletions and insertMatch so that fresh completions are fetched when the user types '.' or '('
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const originalUpdate = completer.updateCompletions.bind(completer);
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completer.updateCompletions = function(this: any, keepPopupPosition: boolean) {
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// The next three lines are copied from updateCompletions() in the ace autocomplete source code.
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if (keepPopupPosition && this.base && this.completions) {
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const pos = this.editor.getCursorPosition();
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const prefix = this.editor.session.getTextRange({start: this.base, end: pos});
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// If the cursor is just after '.' or '(', prevent this same block from running
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// in the original updateCompletions() function. Otherwise it will just keep any remaining completions that match,
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// or not show any completions at all.
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// But the last character implies that the set of completions is likely to have changed.
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if (prefix.endsWith(".") || prefix.endsWith("(")) {
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this.completions = null;
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}
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}
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return originalUpdate(keepPopupPosition);
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}.bind(completer);
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// Similar patch to the above.
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const originalInsertMatch = completer.insertMatch.bind(completer);
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completer.insertMatch = function(this: any) {
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const base = this.base; // this.base may become null after the next line, save it now.
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const result = originalInsertMatch.apply(...arguments);
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// Like in the above patch, get the current text in the editor to be completed.
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const pos = this.editor.getCursorPosition();
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const prefix = this.editor.session.getTextRange({start: base, end: pos});
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// This patch is specifically for when a previous completion is inserted by pressing Enter/Tab,
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// and such completions may end in '(', which can lead to more completions, e.g. for `.lookupRecords(`.
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if (prefix.endsWith("(")) {
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this.showPopup(this.editor);
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}
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return result;
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}.bind(completer);
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aceCompleterAddHelpLinks(completer);
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// Explicitly destroy the auto-completer on disposal, since it doesn't not remove the element
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@ -55,8 +89,9 @@ function initCustomCompleter() {
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aceLanguageTools.addCompleter({
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// Default regexp stops at periods, which doesn't let autocomplete
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// work on members. So we expand it to include periods.
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// We also include $, which grist uses for column names.
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identifierRegexps: [/[a-zA-Z_0-9.$\u00A2-\uFFFF]/],
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// We also include $, which grist uses for column names,
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// and '(' for the start of a function call, which may provide completions for arguments.
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identifierRegexps: [/[a-zA-Z_0-9.$\u00A2-\uFFFF(]/],
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// For autocompletion we ship text to the sandbox and run standard completion there.
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async getCompletions(editor: ace.Editor, session: ace.IEditSession, pos: number, prefix: string, callback: any) {
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@ -5,10 +5,14 @@ It's intended to use with rlcompleter.Completer. It allows finding global names
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lowercase searches, and adds function usage information to some results.
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"""
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import inspect
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from collections import namedtuple
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import re
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from collections import namedtuple, defaultdict
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from six.moves import builtins
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import six
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import column
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from table import UserTable
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# funcname is the function name, e.g. "MAX"
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# argspec is the signature, e.g. "(arg, *more_args)"
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# isgrist is a boolean for whether this function should be in Grist documentation.
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@ -39,17 +43,27 @@ class AutocompleteContext(object):
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# Prepare detailed Completion objects for functions where we can supply more info.
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# TODO It would be nice to include builtin functions too, but getargspec doesn't work there.
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self._functions = {}
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self._functions = {
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# Add in the important UserTable methods, with custom friendlier descriptions.
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'.lookupOne': Completion('.lookupOne', '(colName=<value>, ...)', True),
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'.lookupRecords': Completion('.lookupRecords', '(colName=<value>, ...)', True),
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'.Record': Completion('.Record', '', True),
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'.RecordSet': Completion('.RecordSet', '', True),
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}
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for key, value in six.iteritems(self._context):
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if value and callable(value):
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argspec = inspect.formatargspec(*inspect.getargspec(value))
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self._functions[key] = Completion(key, argspec, is_grist_func(value))
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# Add in the important UserTable methods, with custom friendlier descriptions.
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self._functions['.lookupOne'] = Completion('.lookupOne', '(colName=<value>, ...)', True)
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self._functions['.lookupRecords'] = Completion('.lookupRecords', '(colName=<value>, ...)', True)
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self._functions['.Record'] = Completion('.Record', '', True)
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self._functions['.RecordSet'] = Completion('.RecordSet', '', True)
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for key, value in self._context.copy().items():
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if isinstance(value, UserTable):
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for func in [".lookupOne", ".lookupRecords"]:
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# Add fake variable names like `Table1.lookupOne` to the context.
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# This allows the method to be suggested
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# even before the user finishes typing the table name.
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# Such a variable name isn't actually possible, so it doesn't matter what value we set.
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self._context[key + func] = None
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self._functions[key + func] = self._functions[func]._replace(funcname=key + func)
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# Remember the original name for each lowercase one.
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self._lowercase = {}
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@ -84,6 +98,15 @@ class AutocompleteContext(object):
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# 'for' suggests the autocompletion 'for ' in python 3
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result = result.rstrip()
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# Table.lookup methods are special to allow completion just from the table name.
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match = re.search(r'\w+\.(lookupOne|lookupRecords)$', result, re.IGNORECASE)
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if match:
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funcname = match.group().lower()
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funcname = self._lowercase.get(match, funcname)
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func = self._functions.get(funcname)
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if func:
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return tuple(func)
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# Callables are returned by rlcompleter with a trailing "(".
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if result.endswith('('):
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funcname = result[0:-1]
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@ -103,3 +126,39 @@ class AutocompleteContext(object):
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# Return translation from lowercase if there is one, or the result string otherwise.
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return self._lowercase.get(result, result)
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def lookup_autocomplete_options(lookup_table, formula_table, reverse_only):
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"""
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Returns a list of strings to add to `Table.lookupRecords(` (or lookupOne)
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to suggest arguments for the method.
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`lookup_table` is the table that the method is being called on.
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`formula_table` is the table that the formula is being written in.
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`reverse_only` should be True to only suggest 'reverse reference' lookup arguments
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(i.e. `<refcol>=$id`) and no other reference lookups (i.e. `<refcol>=$<other refcol>`).
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"""
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# dict mapping tables to lists of col_ids in `formula_table` that are references
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# to the the table with that table_id.
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# In particular `$id` is treated as a reference to `formula_table`.
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ref_cols = defaultdict(list, {formula_table: ["id"]})
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if not reverse_only:
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for col_id, col in formula_table.all_columns.items():
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# Note that we can't support reflist columns in the current table,
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# as there is no `IN()` function to do the opposite of the `CONTAINS()` function.
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if isinstance(col, column.ReferenceColumn) and column.is_user_column(col_id):
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ref_cols[col._target_table].append(col_id)
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# Find referencing columns in the lookup table that target tables in ref_cols.
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results = []
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for lookup_col_id, lookup_col in lookup_table.all_columns.items():
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if isinstance(lookup_col, column.ReferenceColumn):
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value_template = "${}"
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elif isinstance(lookup_col, column.ReferenceListColumn):
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value_template = "CONTAINS(${})"
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else:
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continue
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target_table_id = lookup_col._target_table
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for ref_col_id in ref_cols[target_table_id]:
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value = value_template.format(ref_col_id)
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results.append("{}={})".format(lookup_col_id, value))
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return results
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@ -19,7 +19,7 @@ from sortedcontainers import SortedSet
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import acl
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import actions
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import action_obj
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from autocomplete_context import AutocompleteContext
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from autocomplete_context import AutocompleteContext, lookup_autocomplete_options
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from codebuilder import DOLLAR_REGEX
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import depend
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import docactions
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@ -1418,12 +1418,33 @@ class Engine(object):
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"""
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Return a list of suggested completions of the python fragment supplied.
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"""
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table = self.tables[table_id]
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# Table.lookup methods are special to suggest arguments after '('
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match = re.match(r"(\w+)\.(lookupRecords|lookupOne)\($", txt)
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if match:
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# Get the 'Table1' in 'Table1.lookupRecords('
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lookup_table_id = match.group(1)
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if lookup_table_id in self.tables:
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lookup_table = self.tables[lookup_table_id]
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# Add a keyword argument with no value for each column name in the lookup table.
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result = [
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txt + col_id + "="
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for col_id in lookup_table.all_columns
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if column.is_user_column(col_id) or col_id == 'id'
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]
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# Add specific complete lookups involving reference columns.
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result += [
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txt + option
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for option in lookup_autocomplete_options(lookup_table, table, reverse_only=False)
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]
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return sorted(result)
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# replace $ with rec. and add a dummy rec object
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tweaked_txt = DOLLAR_REGEX.sub(r'rec.', txt)
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# convert a bare $ with nothing after it also
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if txt == '$':
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tweaked_txt = 'rec.'
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table = self.tables[table_id]
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autocomplete_context = self.autocomplete_context
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context = autocomplete_context.get_context()
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@ -1433,10 +1454,10 @@ class Engine(object):
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context.pop('value', None)
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context.pop('user', None)
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column = table.get_column(column_id) if table.has_column(column_id) else None
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if column and not column.is_formula():
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col = table.get_column(column_id) if table.has_column(column_id) else None
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if col and not col.is_formula():
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# Add trigger formula completions.
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context['value'] = column.sample_value()
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context['value'] = col.sample_value()
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context['user'] = User(user, self.tables, is_sample=True)
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completer = rlcompleter.Completer(context)
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@ -1450,7 +1471,19 @@ class Engine(object):
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break
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if skipped_completions.search(result):
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continue
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results.append(autocomplete_context.process_result(result))
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result = autocomplete_context.process_result(result)
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results.append(result)
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funcname = result[0]
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# Suggest reverse reference lookups, specifically only for .lookupRecords(),
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# not for .lookupOne().
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if isinstance(result, tuple) and funcname.endswith(".lookupRecords"):
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lookup_table_id = funcname.split(".")[0]
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if lookup_table_id in self.tables:
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lookup_table = self.tables[lookup_table_id]
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results += [
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funcname + "(" + option
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for option in lookup_autocomplete_options(lookup_table, table, reverse_only=True)
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]
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# If we changed the prefix (expanding the $ symbol) we now need to change it back.
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if tweaked_txt != txt:
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log = logger.Logger(__name__, logger.INFO)
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def _make_sample_record(table_id, col_objs):
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"""
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Helper to create a sample record for a table, used for auto-completions.
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"""
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# This type gets created with a property for each column. We use property-methods rather than
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# plain properties because this sample record is created before all tables have initialized, so
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# reference values (using .sample_record for other tables) are not yet available.
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RecType = type(table_id, (), {
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# Note col=col to bind col at lambda-creation time; see
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# https://stackoverflow.com/questions/10452770/python-lambdas-binding-to-local-values
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col.col_id: property(lambda self, col=col: col.sample_value())
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for col in col_objs
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if column.is_user_column(col.col_id) or col.col_id == 'id'
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})
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return RecType()
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def get_default_func_name(col_id):
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return "_default_" + col_id
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@ -252,10 +236,33 @@ class Table(object):
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"""
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Used for auto-completion as a record with correct properties of correct types.
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"""
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return _make_sample_record(
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self.table_id,
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[col for col_id, col in self.all_columns.items() if col_id not in self._special_cols],
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)
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# Create a type with a property for each column. We use property-methods rather than
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# plain attributes because this sample record is created before all tables have initialized, so
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# reference values (using .sample_record for other tables) are not yet available.
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props = {}
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for col in self.all_columns.values():
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if not (column.is_user_column(col.col_id) or col.col_id == 'id'):
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continue
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# Note c=col to bind at lambda-creation time; see
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# https://stackoverflow.com/questions/10452770/python-lambdas-binding-to-local-values
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props[col.col_id] = property(lambda _self, c=col: c.sample_value())
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if col.col_id == 'id':
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# The column lookup below doesn't work for the id column
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continue
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# For columns with a visible column (i.e. most Reference/ReferenceList columns),
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# we also want to show how to get that visible column instead of the 'raw' record
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# returned by the reference column itself.
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col_rec = self._engine.docmodel.get_column_rec(self.table_id, col.col_id)
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visible_col_id = col_rec.visibleCol.colId
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if visible_col_id:
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# This creates a fake attribute like `RefCol.VisibleCol` which isn't valid syntax normally,
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# to show the `.VisibleCol` part before the user has typed the `.`
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props[col.col_id + "." + visible_col_id] = property(
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lambda _self, c=col, v=visible_col_id: getattr(c.sample_value(), v)
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)
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RecType = type(self.table_id, (), props)
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return RecType()
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def _rebuild_model(self, user_table):
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"""
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self.load_sample(testsamples.sample_students)
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# To test different column types, we add some differently-typed columns to the sample.
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self.add_column('Students', 'school', type='Ref:Schools')
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self.add_column('Students', 'school', type='Ref:Schools', visibleCol=10)
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self.add_column('Students', 'homeAddress', type='Ref:Address', visibleCol=21)
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self.add_column('Students', 'birthDate', type='Date')
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self.add_column('Students', 'lastVisit', type='DateTime:America/New_York')
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self.add_column('Schools', 'yearFounded', type='Int')
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@ -102,10 +103,13 @@ class TestCompletion(test_engine.EngineTestCase):
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[
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'user.StudentInfo.birthDate',
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'user.StudentInfo.firstName',
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'user.StudentInfo.homeAddress',
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'user.StudentInfo.homeAddress.city',
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'user.StudentInfo.id',
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'user.StudentInfo.lastName',
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'user.StudentInfo.lastVisit',
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'user.StudentInfo.school',
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'user.StudentInfo.school.name',
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'user.StudentInfo.schoolCities',
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'user.StudentInfo.schoolIds',
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'user.StudentInfo.schoolName'
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@ -164,8 +168,15 @@ class TestCompletion(test_engine.EngineTestCase):
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('STDEVP', '(value, *more_values)', True),
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('STDEVPA', '(value, *more_values)', True)
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])
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self.assertEqual(self.engine.autocomplete("stu", "Address", "city", self.user),
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["Students"])
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self.assertEqual(
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self.engine.autocomplete("stu", "Address", "city", self.user),
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[
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'Students',
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('Students.lookupOne', '(colName=<value>, ...)', True),
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('Students.lookupRecords', '(colName=<value>, ...)', True),
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'Students.lookupRecords(homeAddress=$id)',
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],
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)
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# Add a table name whose lowercase version conflicts with a builtin.
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self.apply_user_action(['AddTable', 'Max', []])
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@ -173,6 +184,8 @@ class TestCompletion(test_engine.EngineTestCase):
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('MAX', '(value, *more_values)', True),
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('MAXA', '(value, *more_values)', True),
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'Max',
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('Max.lookupOne', '(colName=<value>, ...)', True),
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('Max.lookupRecords', '(colName=<value>, ...)', True),
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'max(',
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])
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self.assertEqual(self.engine.autocomplete("MAX", "Address", "city", self.user), [
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@ -185,7 +198,14 @@ class TestCompletion(test_engine.EngineTestCase):
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# Should suggest globals and table names.
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self.assertEqual(self.engine.autocomplete("ME", "Address", "city", self.user),
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[('MEDIAN', '(value, *more_values)', True)])
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self.assertEqual(self.engine.autocomplete("Ad", "Address", "city", self.user), ['Address'])
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self.assertEqual(
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self.engine.autocomplete("Ad", "Address", "city", self.user),
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[
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'Address',
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('Address.lookupOne', '(colName=<value>, ...)', True),
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('Address.lookupRecords', '(colName=<value>, ...)', True),
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],
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)
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self.assertGreaterEqual(set(self.engine.autocomplete("S", "Address", "city", self.user)), {
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'Schools',
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'Students',
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@ -199,7 +219,14 @@ class TestCompletion(test_engine.EngineTestCase):
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('SUM', '(value1, *more_values)', True),
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('STDEV', '(value, *more_values)', True),
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})
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self.assertEqual(self.engine.autocomplete("Addr", "Schools", "budget", self.user), ['Address'])
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self.assertEqual(
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self.engine.autocomplete("Addr", "Schools", "budget", self.user),
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[
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'Address',
|
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('Address.lookupOne', '(colName=<value>, ...)', True),
|
||||
('Address.lookupRecords', '(colName=<value>, ...)', True),
|
||||
],
|
||||
)
|
||||
|
||||
def test_suggest_columns(self):
|
||||
self.assertEqual(self.engine.autocomplete("$ci", "Address", "city", self.user),
|
||||
@ -211,12 +238,13 @@ class TestCompletion(test_engine.EngineTestCase):
|
||||
|
||||
# A few more detailed examples.
|
||||
self.assertEqual(self.engine.autocomplete("$", "Students", "school", self.user),
|
||||
['$birthDate', '$firstName', '$id', '$lastName', '$lastVisit',
|
||||
'$school', '$schoolCities', '$schoolIds', '$schoolName'])
|
||||
['$birthDate', '$firstName', '$homeAddress', '$homeAddress.city',
|
||||
'$id', '$lastName', '$lastVisit',
|
||||
'$school', '$school.name', '$schoolCities', '$schoolIds', '$schoolName'])
|
||||
self.assertEqual(self.engine.autocomplete("$fi", "Students", "birthDate", self.user),
|
||||
['$firstName'])
|
||||
self.assertEqual(self.engine.autocomplete("$school", "Students", "lastVisit", self.user),
|
||||
['$school', '$schoolCities', '$schoolIds', '$schoolName'])
|
||||
['$school', '$school.name', '$schoolCities', '$schoolIds', '$schoolName'])
|
||||
|
||||
def test_suggest_lookup_methods(self):
|
||||
# Should suggest lookup formulas for tables.
|
||||
@ -305,3 +333,123 @@ class TestCompletion(test_engine.EngineTestCase):
|
||||
self.engine.autocomplete("$school.address.city.st", "Students", "lastName", self.user),
|
||||
['$school.address.city.startswith(', '$school.address.city.strip(']
|
||||
)
|
||||
|
||||
def test_suggest_lookup_early(self):
|
||||
# For part of a table name, suggest lookup methods early,
|
||||
# including a 'reverse reference' lookup, i.e. `<refcol to current table>=$id`,
|
||||
# but only for `lookupRecords`, not `lookupOne`.
|
||||
self.assertEqual(
|
||||
self.engine.autocomplete("stu", "Schools", "name", self.user),
|
||||
[
|
||||
'Students',
|
||||
('Students.lookupOne', '(colName=<value>, ...)', True),
|
||||
('Students.lookupRecords', '(colName=<value>, ...)', True),
|
||||
# i.e. Students.school is a reference to Schools
|
||||
'Students.lookupRecords(school=$id)',
|
||||
],
|
||||
)
|
||||
self.assertEqual(
|
||||
self.engine.autocomplete("scho", "Address", "city", self.user),
|
||||
[
|
||||
'Schools',
|
||||
('Schools.lookupOne', '(colName=<value>, ...)', True),
|
||||
('Schools.lookupRecords', '(colName=<value>, ...)', True),
|
||||
# i.e. Schools.address is a reference to Address
|
||||
'Schools.lookupRecords(address=$id)',
|
||||
],
|
||||
)
|
||||
|
||||
# Same as above, but the formula is being entered in 'Students' instead of 'Address',
|
||||
# which means there's no reverse reference to suggest.
|
||||
self.assertEqual(
|
||||
self.engine.autocomplete("scho", "Students", "firstName", self.user),
|
||||
[
|
||||
'Schools',
|
||||
('Schools.lookupOne', '(colName=<value>, ...)', True),
|
||||
('Schools.lookupRecords', '(colName=<value>, ...)', True),
|
||||
],
|
||||
)
|
||||
|
||||
def test_suggest_lookup_arguments(self):
|
||||
# Typing in the full `.lookupRecords(` should suggest keyword argument (i.e. column) names,
|
||||
# in addition to reference lookups, including the reverse reference lookups above.
|
||||
self.assertEqual(
|
||||
self.engine.autocomplete("Schools.lookupRecords(", "Address", "city", self.user),
|
||||
[
|
||||
'Schools.lookupRecords(address=',
|
||||
'Schools.lookupRecords(address=$id)',
|
||||
'Schools.lookupRecords(budget=',
|
||||
'Schools.lookupRecords(id=',
|
||||
'Schools.lookupRecords(lastModified=',
|
||||
'Schools.lookupRecords(lastModifier=',
|
||||
'Schools.lookupRecords(name=',
|
||||
'Schools.lookupRecords(yearFounded=',
|
||||
],
|
||||
)
|
||||
|
||||
# In addition to reverse reference lookups, suggest other lookups involving two reference
|
||||
# columns (one from the looked up table, one from the current table) targeting the same table,
|
||||
# e.g. `address=$homeAddress` in the two cases below.
|
||||
self.assertEqual(
|
||||
self.engine.autocomplete("Schools.lookupRecords(", "Students", "firstName", self.user),
|
||||
[
|
||||
'Schools.lookupRecords(address=',
|
||||
'Schools.lookupRecords(address=$homeAddress)',
|
||||
'Schools.lookupRecords(budget=',
|
||||
'Schools.lookupRecords(id=',
|
||||
'Schools.lookupRecords(lastModified=',
|
||||
'Schools.lookupRecords(lastModifier=',
|
||||
'Schools.lookupRecords(name=',
|
||||
'Schools.lookupRecords(yearFounded=',
|
||||
],
|
||||
)
|
||||
|
||||
self.assertEqual(
|
||||
self.engine.autocomplete("Students.lookupRecords(", "Schools", "name", self.user),
|
||||
[
|
||||
'Students.lookupRecords(birthDate=',
|
||||
'Students.lookupRecords(firstName=',
|
||||
'Students.lookupRecords(homeAddress=',
|
||||
'Students.lookupRecords(homeAddress=$address)',
|
||||
'Students.lookupRecords(id=',
|
||||
'Students.lookupRecords(lastName=',
|
||||
'Students.lookupRecords(lastVisit=',
|
||||
'Students.lookupRecords(school=',
|
||||
'Students.lookupRecords(school=$id)',
|
||||
'Students.lookupRecords(schoolCities=',
|
||||
'Students.lookupRecords(schoolIds=',
|
||||
'Students.lookupRecords(schoolName=',
|
||||
],
|
||||
)
|
||||
|
||||
# Add some more reference columns to test that all combinations are offered
|
||||
self.add_column('Students', 'homeAddress2', type='Ref:Address')
|
||||
self.add_column('Schools', 'address2', type='Ref:Address')
|
||||
# This leads to `Students.lookupRecords(moreAddresses=CONTAINS($address[2]))`
|
||||
self.add_column('Students', 'moreAddresses', type='RefList:Address')
|
||||
# This doesn't affect anything, because there's no way to do the opposite of CONTAINS()
|
||||
self.add_column('Schools', 'otherAddresses', type='RefList:Address')
|
||||
self.assertEqual(
|
||||
self.engine.autocomplete("Students.lookupRecords(", "Schools", "name", self.user),
|
||||
[
|
||||
'Students.lookupRecords(birthDate=',
|
||||
'Students.lookupRecords(firstName=',
|
||||
'Students.lookupRecords(homeAddress2=',
|
||||
'Students.lookupRecords(homeAddress2=$address)',
|
||||
'Students.lookupRecords(homeAddress2=$address2)',
|
||||
'Students.lookupRecords(homeAddress=',
|
||||
'Students.lookupRecords(homeAddress=$address)',
|
||||
'Students.lookupRecords(homeAddress=$address2)',
|
||||
'Students.lookupRecords(id=',
|
||||
'Students.lookupRecords(lastName=',
|
||||
'Students.lookupRecords(lastVisit=',
|
||||
'Students.lookupRecords(moreAddresses=',
|
||||
'Students.lookupRecords(moreAddresses=CONTAINS($address))',
|
||||
'Students.lookupRecords(moreAddresses=CONTAINS($address2))',
|
||||
'Students.lookupRecords(school=',
|
||||
'Students.lookupRecords(school=$id)',
|
||||
'Students.lookupRecords(schoolCities=',
|
||||
'Students.lookupRecords(schoolIds=',
|
||||
'Students.lookupRecords(schoolName=',
|
||||
],
|
||||
)
|
||||
|
Loading…
Reference in New Issue
Block a user