Changes from mwork PC.

PDP 2025

MPI analysis

new focus on database and SQL
This commit is contained in:
Silas Oettinghaus
2025-03-21 08:11:40 +01:00
parent 402e491506
commit 74066d0669
36 changed files with 2234 additions and 620 deletions

View File

@@ -45,15 +45,15 @@ classdef DBHandler < handle
else
error('DB seems to be corrupt')
end
end
function obj = refresh(obj)
% Get table names and the first rows of each table to understand the structure
obj.getTableNames();
obj.getTables();
obj.getDistinctValues();
% Get table names and the first rows of each table to understand the structure
obj.getTableNames();
obj.getTables();
obj.getDistinctValues();
end
function obj = getTableNames(obj)
@@ -187,10 +187,11 @@ classdef DBHandler < handle
if isstruct(newRow)
fields = fieldnames(newRow);
emptyFields = structfun(@isempty,newRow);
if sum(emptyFields)>0
newRow.(fields{emptyFields==1}) = NaN;
disp(['In Table: ',tableName,': ',fields{emptyFields==1},' was empty, is now NaN ',newRow.(fields{emptyFields==1})])
if sum(emptyFields) > 0
emptyFieldNames = fields(emptyFields); % use () to get a cell array
for idx = 1:numel(emptyFieldNames)
newRow.(emptyFieldNames{idx}) = NaN;
end
end
newRow = struct2table(newRow);
end
@@ -274,87 +275,168 @@ classdef DBHandler < handle
end
end
function addBEREntry(obj, berValue, occurrence, runID, ffe, dfe, mlse, pf, eqType, ffe_order, dfe_order, len_tr, mu_ffe, mu_dfe, mu_dc, comment)
% addBEREntry Adds a BER entry linked to an existing or new Equalizer entry.
% Usage:
% addBEREntry(runID, eq, ffe, dfe, mlse, pf, eqType, ffe_order, dfe_order, len_tr, mu_ffe, mu_dfe, mu_dc, berValue, comment)
if isempty(pf)
postfilter_taps = [];
function resultID = addProcessingResult(obj, run_id, resultData, eqParamsData)
% addProcessingResult Adds a processing result and links it to an EqualizerParameters entry.
%
% Inputs:
% run_id: A run_id from the main table to connect the BER with.
%
% resultData: A struct with fields corresponding to the ProcessingResults table.
%
% eqParamsData: A struct with fields corresponding to the EqualizerParameters table,
% except 'eq_id' and 'config_hash'. These fields are used to compute
% a hash and check for an existing configuration.
%
% Output:
% resultID: The result_id of the newly inserted ProcessingResults entry.
% 1. Compute hash for equalizer parameters
jsonStr = jsonencode(eqParamsData);
md = java.security.MessageDigest.getInstance('MD5');
md.update(uint8(jsonStr));
hashBytes = typecast(md.digest, 'uint8');
hashStr = lower(dec2hex(hashBytes)');
hashStr = lower(strtrim(hashStr(:)')); % Convert to a lowercase string
% Add hash to equalizer parameters
eqParamsData.config_hash = hashStr;
% 2. Check if an equalizer configuration with the same hash exists
queryStr = sprintf('SELECT eq_id FROM EqualizerParameters WHERE config_hash = ''%s''', eqParamsData.config_hash);
existingEntry = obj.fetch(queryStr);
if ~isempty(existingEntry)
% Use existing eq_id
eq_id = existingEntry{1,1};
else
postfilter_taps = pf.burg_coeff;
% Insert the new equalizer configuration and get its eq_id
eq_id = obj.appendToTable('EqualizerParameters', eqParamsData);
end
% Create equalizer data struct for searching and adding if necessary
equalizerData = struct( ...
'ffe', jsonencode(ffe), ...
'dfe', jsonencode(dfe), ...
'mlse', jsonencode(mlse), ...
'pf', jsonencode(pf), ...
'eq_type', string(eqType), ...
'ffe_order', jsonencode(ffe_order), ...
'dfe_order', jsonencode(dfe_order), ...
'postfilter_taps',jsonencode(postfilter_taps),...
'len_tr', len_tr, ...
'mu_ffe', jsonencode(mu_ffe), ...
'mu_dfe', mu_dfe, ...
'mu_dc', mu_dc, ...
'comment', comment ...
);
% 3. Add the equalizer configuration reference and run_id to resultData
resultData.eqParam_id = eq_id;
resultData.run_id = run_id;
% Check if exact Equalizer and BER entries already exist in the DB ...
selectedFields = {'Runs.run_id','BERs.ber_id','Equalizer.eq_id','BERs.ber',['BERs.occurrence' ...
'']};
filterParams = obj.tables;
filterParams.Equalizer = equalizerData;
[dataTable,sql_query] = obj.queryDB(filterParams, selectedFields);
% 4. Compute hash for the processing result
tempResultData = rmfield(resultData, 'date_of_processing');
resultJsonStr = jsonencode(tempResultData);
md2 = java.security.MessageDigest.getInstance('MD5'); % Create a new MD5 instance
md2.update(uint8(resultJsonStr));
resultHashBytes = typecast(md2.digest, 'uint8');
resultHashStr = lower(dec2hex(resultHashBytes)');
resultHashStr = lower(strtrim(resultHashStr(:)')); % Convert to a lowercase string
% get or insert Equalizer
if ~isempty(dataTable)
% Equalizer entry already exists, use the existing eq_id
cur_eq_id = dataTable.eq_id;
else
% Insert the new Equalizer entry
cur_eq_id = obj.appendToTable('Equalizer', equalizerData);
% Add the result hash to resultData
resultData.result_hash = resultHashStr;
% 5. Check if an identical processing result already exists
queryStr2 = sprintf('SELECT result_id FROM Results WHERE result_hash = ''%s''', resultData.result_hash);
existingResult = obj.fetch(queryStr2);
if ~isempty(existingResult)
% If the result exists, return its result_id without inserting a new row
resultID = existingResult{1,1};
warning(['Result already exists: ResultID: ',num2str(resultID),'| EQ ID: ',num2str(eq_id),' Run ID: ' num2str(run_id)])
return;
end
% skip if already here or insert BER entry
if ~isempty(dataTable)
% 6. Insert the processing result
resultID = obj.appendToTable('Results', resultData);
end
% A BER entry with the same eq_id, run_id, and occurrence already exists
existingBERValue = dataTable.ber;
function recalcHashes(obj)
% recalcHashes Recalculate hashes for all rows in the Results and EqualizerParameters tables.
%
% For EqualizerParameters, the hash is computed from all fields except
% 'eq_id' and 'config_hash'.
%
% For Results, the hash is computed from all fields except 'result_id',
% 'result_hash', and 'date_of_processing'.
% Compare the existing BER value with the new BER value
if existingBERValue == berValue
fprintf('The BER entry %.2e || -- eq_id: %d -- run_id: %d -- occurrence: %d already exists. \n',berValue, cur_eq_id, runID, occurrence);
else
fprintf('Already found BER for EQ: %.2e ~= %.2e || -- eq_id: %d -- run_id: %d -- occurrence: %d already exists.\n', berValue, existingBERValue, cur_eq_id, runID, occurrence);
% Recalculate hashes for EqualizerParameters
eqParamsRows = obj.fetch('SELECT * FROM EqualizerParameters');
for i = 1:height(eqParamsRows)
rowStruct = table2struct(eqParamsRows(i,:)); % Convert the table row to a struct
% Remove fields not part of the hash computation
if isfield(rowStruct, 'eq_id')
rowStruct = rmfield(rowStruct, 'eq_id');
end
if isfield(rowStruct, 'config_hash')
rowStruct = rmfield(rowStruct, 'config_hash');
end
else
% No such BER entry exists, insert the new BER entry
berData = struct( ...
'run_id', runID, ...
'eq_id', cur_eq_id, ...
'ber', berValue, ...
'occurrence', occurrence ...
);
obj.appendToTable('BERs', berData);
% Compute MD5 hash from the JSON representation
jsonStr = jsonencode(rowStruct);
md = java.security.MessageDigest.getInstance('MD5');
md.update(uint8(jsonStr));
hashBytes = typecast(md.digest, 'uint8');
hashStr = lower(dec2hex(hashBytes)');
hashStr = lower(strtrim(hashStr(:)'));
% Update the config_hash field using the eq_id from the table row
eq_id = eqParamsRows.eq_id(i);
updateQuery = sprintf('UPDATE EqualizerParameters SET config_hash = ''%s'' WHERE eq_id = %d', hashStr, eq_id);
obj.executeSQL(updateQuery);
end
% Fetch all rows from the Results table using queryDB with no filters
Results = obj.tables.Results;
if isstruct(Results)
newFields = {};
fNames = fieldnames(Results);
for i = 1:numel(fNames)
newFields{end+1} = ['Results.' fNames{i}];
end
Results = newFields;
end
[resultsRows, ~] = obj.queryDB(obj.tables, Results);
for i = 1:height(resultsRows)
rowStruct = table2struct(resultsRows(i, :)); % Convert the row to a struct
% Remove fields not used in the hash calculation
if isfield(rowStruct, 'result_id')
rowStruct = rmfield(rowStruct, 'result_id');
end
if isfield(rowStruct, 'result_hash')
rowStruct = rmfield(rowStruct, 'result_hash');
end
if isfield(rowStruct, 'date_of_processing')
rowStruct = rmfield(rowStruct, 'date_of_processing');
end
% Compute MD5 hash from the JSON representation
jsonStr = jsonencode(rowStruct);
md = java.security.MessageDigest.getInstance('MD5');
md.update(uint8(jsonStr));
hashBytes = typecast(md.digest, 'uint8');
hashStr = lower(dec2hex(hashBytes)');
hashStr = lower(strtrim(hashStr(:)'));
% Access the result_id from the table row and update the hash
result_id = resultsRows.result_id(i);
updateQuery = sprintf('UPDATE Results SET result_hash = ''%s'' WHERE result_id = %d', ...
hashStr, result_id);
obj.executeSQL(updateQuery);
end
end
function executeSQL(obj, query)
% This method executes an SQL statement using MATLAB's execute function.
execute(obj.conn, query);
end
function answer = fetch(obj,query)
answer = fetch(obj.conn,query);
end
@@ -405,15 +487,46 @@ classdef DBHandler < handle
function query = constructSQLQuery(obj, filterParams, selectedFields)
% constructSQLQuery Constructs the SQL query based on filter parameters and selected fields.
%
% If selectedFields is provided as a struct, it is converted to a cell array.
% The conversion takes the field names and creates entries like:
% {'selectedFields.fieldName'} for each field.
% Construct the SELECT clause dynamically based on user selection
% Input check for selectedFields: if it's a struct, convert it to a cell array.
if isstruct(selectedFields)
newFields = {};
tableNames = fieldnames(selectedFields);
for t = 1:numel(tableNames)
tableStruct = selectedFields.(tableNames{t});
fieldNames = fieldnames(tableStruct);
for f = 1:numel(fieldNames)
if isequal(tableStruct.(fieldNames{f}), 1)
newFields{end+1} = sprintf('%s.%s', tableNames{t}, fieldNames{f});
end
end
end
selectedFields = newFields;
end
% Construct the SELECT clause dynamically based on user selection.
% (Assuming that when provided as a cell array, each entry is of the form
% 'TableName.fieldName' or, in our conversion case, 'selectedFields.fieldName'.)
selectClause = 'SELECT DISTINCT ';
for i = 1:numel(selectedFields)
fieldParts = strsplit(selectedFields{i}, '.');
tableName = fieldParts{1};
fieldName = fieldParts{2};
% If the field comes from the struct conversion, its first part is 'selectedFields'
% and the actual field name is in the second part.
if strcmp(fieldParts{1}, 'selectedFields')
tableName = fieldParts{1}; % not used for type checking below
fieldName = fieldParts{2};
else
tableName = fieldParts{1};
fieldName = fieldParts{2};
end
if isnumeric(obj.tables.(tableName).(fieldName))
% Decide on COALESCE depending on the field type.
% If the table is known in obj.tables and the field is numeric, use 'NaN'.
if isfield(obj.tables, tableName) && isfield(obj.tables.(tableName), fieldName) && isnumeric(obj.tables.(tableName).(fieldName))
selectClause = [selectClause, 'COALESCE(', selectedFields{i}, ', ''NaN'') AS ', fieldName];
else
selectClause = [selectClause, 'COALESCE(', selectedFields{i}, ', '''') AS ', fieldName];
@@ -426,235 +539,302 @@ classdef DBHandler < handle
end
end
% Construct the FROM and WHERE clause
baseQuery = [selectClause, 'FROM Runs ' ...
'LEFT JOIN Configurations ON Runs.run_id = Configurations.run_id ' ...
'LEFT JOIN Measurements ON Runs.run_id = Measurements.run_id ' ...
'WHERE '];
% 'LEFT JOIN BERs ON Runs.run_id = BERs.run_id ' ...
% 'LEFT JOIN Equalizer ON BERs.eq_id = Equalizer.eq_id ' ...
% --- Adaptive FROM Clause ---
% Use "Runs" as the main table and add LEFT JOINs for every other table in obj.tables
% (except "sqlite_sequence") that has a run_id field.
mainTable = 'Runs';
fromClause = ['FROM ', mainTable, ' '];
tableNamesAll = fieldnames(obj.tables);
for t = 1:numel(tableNamesAll)
tableName = tableNamesAll{t};
if strcmpi(tableName, mainTable) || strcmpi(tableName, 'sqlite_sequence')
continue;
end
% Loop through each table in filterParams
if isfield(obj.tables.(tableName), 'run_id')
% most tables are directly linked to runs table
fromClause = [fromClause, 'LEFT JOIN ', tableName, ' ON ', mainTable, '.run_id = ', tableName, '.run_id '];
elseif isfield(obj.tables.(tableName), 'eq_id')
% equalizer is only linked to results table
fromClause = [fromClause, 'LEFT JOIN ', tableName, ' ON ', 'Results', '.eqParam_id = ', tableName, '.eq_id '];
end
end
% --- WHERE Clause Construction ---
baseQuery = [selectClause, ' ', fromClause, 'WHERE '];
filterClauses = [];
tableNames_ = fieldnames(filterParams);
for t = 1:numel(tableNames_)
tableName = tableNames_{t};
tableParams = filterParams.(tableName);
% Loop through each parameter in the table
fieldNames = fieldnames(tableParams);
for i = 1:numel(fieldNames)
fieldName = fieldNames{i};
value = tableParams.(fieldName);
% Construct the full column name in the format "tableName.fieldName"
fullName = sprintf('%s.%s', tableName, fieldName);
% Handle different types of values for SQL query construction
% Handle various types of values for SQL query construction
if isempty(value)
% Skip this parameter if it is empty (include all values)
continue;
elseif isnumeric(value) && isnan(value)
% If value is NaN, use IS NULL in SQL
filterClause = sprintf('%s IS NULL', fullName);
elseif isnumeric(value) && ~isEnumeration(value)
filterClause = sprintf('%s = %f', fullName, value);
elseif islogical(value) || (isnumeric(value) && ismember(value, [0, 1])) && ~isEnumeration(value)
filterClause = sprintf('%s = %d', fullName, value);
elseif ischar(value) || isstring(value)
filterClause = sprintf('%s = ''%s''', fullName, char(value)); %nicht nach string suchen sondern nach chararray -> 'bla' statt "bla"
filterClause = sprintf('%s = ''%s''', fullName, char(value));
elseif isEnumeration(value)
filterClause = sprintf('%s = ''%s''', fullName, value);
else
error('Unsupported data type for field "%s".', fullName);
end
% Add the constructed filter clause to the list
filterClauses = [filterClauses, filterClause, ' AND '];
end
end
% Remove trailing ' AND ' from the filter clauses if any filters were added
% Remove trailing ' AND ' if any filters were added.
if ~isempty(filterClauses)
filterClauses = filterClauses(1:end-5);
end
% Construct the final SQL query
if isempty(filterClauses)
query = [selectClause, 'FROM Runs ' ...
'LEFT JOIN Configurations ON Runs.run_id = Configurations.run_id ' ...
'LEFT JOIN Measurements ON Runs.run_id = Measurements.run_id ' ...
'LEFT JOIN BERs ON Runs.run_id = BERs.run_id'];
query = [selectClause, ' ', fromClause, 'WHERE ', filterClauses];
else
query = [baseQuery, filterClauses];
query = [selectClause, ' ', fromClause];
end
end
function selectedFields = promptSelectFields(obj)
% promptSelectFields Prompts the user to select fields from multiple tables to include in the SELECT statement using settingsdlg.
% promptSelectFields Prompts the user to select fields from multiple tables
% using a custom checkbox GUI with scrolling.
%
% The function builds a list of all fields (formatted as 'TableName.fieldName')
% and displays each as a checkbox inside an inner container panel. The container's
% height is set to accommodate all checkboxes, so the scrollable panel shows scrollbars.
% When the user clicks the "Select" button, the selected fields are returned.
% If none are selected, all fields are returned.
% Get all possible fields from all tables (excluding sqlite_sequence)
% Get all possible tables (excluding sqlite_sequence)
tableNames = fieldnames(obj.tables);
tableNames = setdiff(tableNames, {'sqlite_sequence'}); % Remove sqlite_sequence
% Prepare the inputs for settingsdlg
promptSettings = {};
allFieldsFullName = {};
convertedFieldNames = {};
tableNames = setdiff(tableNames, {'sqlite_sequence'});
% Build a single cell array of all field names with table prefix.
allFields = {};
for i = 1:numel(tableNames)
tableFields = fieldnames(obj.tables.(tableNames{i}));
for j = 1:numel(tableFields)
fieldName = tableFields{j};
fullName = sprintf('%s.%s', tableNames{i}, fieldName);
convertedName = strrep(fullName, '.', '_'); % Replace '.' with '_'
allFieldsFullName{end + 1} = fullName; % Add full name to the list
convertedFieldNames{end + 1} = convertedName; % Store the converted name
% Add the field name and checkbox setting to the prompt
promptSettings{end + 1} = {sprintf('Include %s', fullName), convertedName};
promptSettings{end + 1} = false; % Default: not selected
fields = fieldnames(obj.tables.(tableNames{i}));
for j = 1:numel(fields)
allFields{end+1} = sprintf('%s.%s', tableNames{i}, fields{j});
end
end
numFields = numel(allFields);
% Create the settings dialog
[settings, button] = settingsdlg(...
'title', 'Select Fields for the SQL Query', ...
'description', 'Check the boxes for the fields you want to include in the SELECT statement.', ...
promptSettings{:} ...
);
% Create the main figure.
fig = uifigure('Name', 'Select Fields', 'Position', [100, 100, 400, 600]);
% If the user cancels, default to selecting all fields
if strcmp(button, 'cancel')
selectedFields = allFieldsFullName;
return;
% Create a scrollable panel.
scrollPanel = uipanel(fig, 'Position', [10, 60, 380, 530], 'Scrollable', 'on');
% Define checkbox dimensions.
checkboxHeight = 30;
spacing = 5;
totalHeight = numFields * (checkboxHeight + spacing);
% Create an inner container panel with height larger than the scrollPanel's height.
container = uipanel(scrollPanel, 'Position', [0, 0, scrollPanel.Position(3), totalHeight]);
% Create checkboxes using absolute positioning in the container.
checkboxes = gobjects(numFields, 1);
for i = 1:numFields
% Calculate the vertical position.
% The origin (0,0) is at the bottom left of the container.
yPos = totalHeight - i*(checkboxHeight + spacing) + spacing;
checkboxes(i) = uicheckbox(container, ...
'Text', allFields{i}, ...
'Value', false, ...
'Position', [10, yPos, container.Position(3)-20, checkboxHeight]);
end
% Parse user input into selectedFields
% Create a "Select" button in the main figure.
btn = uibutton(fig, 'Text', 'Select', ...
'Position', [150, 10, 100, 30], ...
'ButtonPushedFcn', @(btn, event) uiresume(fig));
% Wait for the user to click the button.
uiwait(fig);
% Retrieve the selected fields.
selectedFields = {};
for i = 1:numel(allFieldsFullName)
convertedName = convertedFieldNames{i};
if isfield(settings, convertedName) && settings.(convertedName) % Add to selectedFields if the checkbox was selected
selectedFields{end + 1} = allFieldsFullName{i}; %#ok<AGROW>
for i = 1:numFields
if checkboxes(i).Value
selectedFields{end+1} = checkboxes(i).Text;
end
end
% If no fields are selected, default to selecting all fields
% If no fields are selected, default to all fields.
if isempty(selectedFields)
selectedFields = allFieldsFullName;
selectedFields = allFields;
end
% Close the figure.
delete(fig);
end
function filterParams = promptFilterParameters(obj)
% promptFilterParameters Prompts the user to enter filter parameters using the settingsdlg framework.
% promptFilterParameters Prompts the user to enter filter parameters using a
% custom scrollable UI with dropdowns.
%
% For each table (excluding 'sqlite_sequence'), each field that has distinct
% values is displayed as a label and a dropdown. The dropdown items are built
% from the distinct values (with "All" prepended). The output is a struct where,
% for each table, each field is set to the chosen value (or [] if "All" is selected).
% Get all possible parameters from all tables (excluding sqlite_sequence)
tableNames_ = fieldnames(obj.tables);
tableNames_ = setdiff(tableNames_, {'sqlite_sequence'}); % Remove sqlite_sequence
% Get all tables except 'sqlite_sequence'
tableNames = fieldnames(obj.tables);
tableNames = setdiff(tableNames, {'sqlite_sequence'});
% Prepare the inputs for settingsdlg with sections and separators
promptSettings = {};
allFieldsFullName = {};
convertedFieldNames = {};
% Precompute layout constants.
heightPerTableLabel = 30;
heightPerField = 40; % vertical space for a field (label + dropdown)
spacing = 5;
for i = 1:numel(tableNames_)
% Add a separator for each table section
promptSettings{end + 1} = 'separator';
promptSettings{end + 1} = tableNames_{i};
% Get all fields from the current table
tableFields = fieldnames(obj.tables.(tableNames_{i}));
% Prepare each field to be added to the dialog
% Compute total required height.
totalHeight = 0;
for i = 1:numel(tableNames)
totalHeight = totalHeight + heightPerTableLabel;
tableName = tableNames{i};
tableFields = fieldnames(obj.tables.(tableName));
for j = 1:numel(tableFields)
fieldName = tableFields{j};
fullName = sprintf('%s.%s', tableNames_{i}, fieldName);
convertedName = strrep(fullName, '.', '_'); % Replace '.' with '_'
% Skip fields that do not have distinct values stored
if ~isfield(obj.distinctValues.(tableNames_{i}), fieldName)
continue;
% Only include fields that have distinct values stored.
if isfield(obj.distinctValues.(tableName), fieldName)
totalHeight = totalHeight + heightPerField;
end
% Get the distinct values for the field
distinctValues_ = obj.distinctValues.(tableNames_{i}).(fieldName);
% Prepare distinct values for dropdown
if isempty(distinctValues_)
% If there are no distinct values, use only an "All" entry
distinctValues_ = {'All'};
else
% Ensure distinctValues is a cell array of strings
if isnumeric(distinctValues_)
distinctValues_ = arrayfun(@(x) num2str(x), distinctValues_, 'UniformOutput', false);
elseif isstring(distinctValues_)
distinctValues_ = cellstr(distinctValues_);
elseif iscell(distinctValues_) && ~iscellstr(distinctValues_)
distinctValues_ = cellfun(@num2str, distinctValues_, 'UniformOutput', false);
end
% Add an "All" option at the beginning of the distinct values list
distinctValues_ = [{'All'}; distinctValues_];
end
allFieldsFullName{end + 1} = fullName; % Add full name to the list
convertedFieldNames{end + 1} = convertedName; % Store the converted name
% Add the field name and value setting to the prompt
promptSettings{end + 1} = {sprintf('%s', fullName), convertedName};
promptSettings{end + 1} = distinctValues_; % Add distinct values as dropdown options
end
end
% Create the settings dialog
[settings, button] = settingsdlg(...
'title', 'Input Parameters for Filtering', ...
'description', 'Enter the values for each field to filter. Select "All" to include all values.', ...
promptSettings{:} ...
);
% Create the main UI figure.
fig = uifigure('Name', 'Input Parameters for Filtering', 'Position', [100, 100, 500, 600]);
% If the user cancels, return an empty struct
if strcmp(button, 'cancel')
% Set a CloseRequestFcn so that closing the figure calls uiresume.
fig.CloseRequestFcn = @(src, event) uiresume(src);
% Create a scrollable panel inside the figure.
scrollPanel = uipanel(fig, 'Position', [10, 60, 480, 530], 'Scrollable', 'on');
% Create an inner container panel with a height set to totalHeight.
container = uipanel(scrollPanel, 'Position', [0, 0, scrollPanel.Position(3), totalHeight]);
% Prepare cell arrays to store dropdown handles and corresponding table/field names.
dropdownHandles = {};
dropdownTableNames = {};
dropdownFieldNames = {};
% Set the starting Y coordinate (filling from top to bottom).
currentY = totalHeight;
% Maximum number of dropdown items.
maxItems = 100;
for i = 1:numel(tableNames)
% Create a label for the table name.
uilabel(container, ...
'Text', tableNames{i}, ...
'FontWeight', 'bold', ...
'Position', [10, currentY - heightPerTableLabel + spacing, 200, heightPerTableLabel - spacing]);
currentY = currentY - heightPerTableLabel;
tableName = tableNames{i};
tableFields = fieldnames(obj.tables.(tableName));
for j = 1:numel(tableFields)
fieldName = tableFields{j};
if ~isfield(obj.distinctValues.(tableName), fieldName)
continue; % Skip if no distinct values are stored.
end
% Retrieve distinct values for the field.
distinctValues_ = obj.distinctValues.(tableName).(fieldName);
if ~isempty(distinctValues_) && numel(distinctValues_) > maxItems
distinctValues_ = distinctValues_(1:maxItems);
end
if isempty(distinctValues_)
items = {'All'};
else
if isnumeric(distinctValues_)
items = cellfun(@num2str, num2cell(distinctValues_), 'UniformOutput', false);
elseif isstring(distinctValues_)
items = cellstr(distinctValues_);
elseif iscell(distinctValues_) && ~iscellstr(distinctValues_)
items = cellfun(@num2str, distinctValues_, 'UniformOutput', false);
else
items = distinctValues_;
end
items = items(:)'; % Ensure row vector
items = [{'All'}, items];
end
% Create a label for the field.
uilabel(container, ...
'Text', sprintf('%s:', fieldName), ...
'HorizontalAlignment', 'right', ...
'Position', [10, currentY - 25, 150, 25]);
% Create a dropdown for the field.
dd = uidropdown(container, ...
'Items', items, ...
'Value', 'All', ...
'Position', [170, currentY - 25, 200, 25]);
% Store the dropdown handle and its associated table/field.
dropdownHandles{end+1} = dd;
dropdownTableNames{end+1} = tableName;
dropdownFieldNames{end+1} = fieldName;
currentY = currentY - heightPerField;
end
end
% Create a "Submit" button at the bottom of the figure.
btn = uibutton(fig, 'Text', 'Submit', ...
'Position', [200, 10, 100, 30], ...
'ButtonPushedFcn', @(btn, event) uiresume(fig));
% Wait until the user clicks "Submit" or closes the figure.
uiwait(fig);
% If the figure was closed (and thus no longer valid), return an empty struct.
if ~isvalid(fig)
filterParams = struct();
return;
end
% Parse user input into filterParams structure
% Build the filterParams struct from the dropdown selections.
filterParams = struct();
for i = 1:numel(allFieldsFullName)
value = settings.(convertedFieldNames{i});
% Split full name to get table and field names
fieldParts = strsplit(allFieldsFullName{i}, '.');
tableName = fieldParts{1};
fieldName = fieldParts{2};
% If the table does not exist in the filterParams struct, create it
for k = 1:numel(dropdownHandles)
tableName = dropdownTableNames{k};
fieldName = dropdownFieldNames{k};
value = dropdownHandles{k}.Value;
if ~isfield(filterParams, tableName)
filterParams.(tableName) = struct();
end
% Assign values to the respective fields under each table
% If "All" is selected, assign empty; otherwise, try converting to numeric.
if strcmp(value, 'All')
filterParams.(tableName).(fieldName) = []; % Set to empty to include all values
elseif isnumeric(value) && isnan(value)
filterParams.(tableName).(fieldName) = NaN; % Use NaN to handle as NULL
filterParams.(tableName).(fieldName) = [];
else
filterParams.(tableName).(fieldName) = value; % Use the entered value
numValue = str2double(value);
if ~isnan(numValue)
filterParams.(tableName).(fieldName) = numValue;
else
filterParams.(tableName).(fieldName) = value;
end
end
end
% Close the figure.
delete(fig);
end
end
end